--- /dev/null
+# Generated by make_ctags for development
+tags
+
+# Global excludes across all subdirectories
+*.o
+*.so
+
+# Generated by test suite
+export_stats.dmp
+
+# Generated by build
+/pg_dbms_stats--1.0.sql
+/export_effective_stats.sql.sample
+/export_original_stats.sql.sample
+
+# Generated subdirectories
+/log/
+/results/
+/tmp_check/
--- /dev/null
+# pg_dbms_stats/Makefile
+
+MODULE_big = pg_dbms_stats
+OBJS = pg_dbms_stats.o dump.o import.o
+
+ifdef UNIT_TEST
+PG_CPPFLAGS = -DUNIT_TEST
+endif
+
+EXTENSION = pg_dbms_stats
+DATA = pg_dbms_stats--1.0.sql
+
+REGRESS = init-common init-$(MAJORVERSION) ut-common ut-$(MAJORVERSION) \
+ ut_imp_exp-$(MAJORVERSION)
+
+REGRESS_OPTS = --encoding=UTF8
+
+DOCS = export_effective_stats-$(MAJORVERSION).sql.sample \
+ export_plain_stats-$(MAJORVERSION).sql.sample
+
+EXTRA_CLEAN = sql/ut_anyarray-*.sql expected/ut_anyarray-*.out \
+ sql/ut_imp_exp-*.sql expected/ut_imp_exp-*.out \
+ export_stats.dmp $(DATA)
+
+PG_CONFIG = pg_config
+PGXS := $(shell $(PG_CONFIG) --pgxs)
+include $(PGXS)
+
+all: $(DATA) $(DOCS)
+
+$(DATA): %.sql: %-$(MAJORVERSION).sql
+ cp $< $@
+
--- /dev/null
+# SPEC file for pg_dbms_stats
+# Copyright(C) 2012 NIPPON TELEGRAPH AND TELEPHONE CORPORATION
+
+%define _pgdir /usr/pgsql-9.1
+%define _bindir %{_pgdir}/bin
+%define _libdir %{_pgdir}/lib
+%define _datadir %{_pgdir}/share
+%define _docdir /usr/share/doc/pgsql
+
+## Set general information for pg_dbms_stats.
+Summary: Plan Stabilizer for PostgreSQL 9.1
+Name: pg_dbms_stats91
+Version: 1.3.0
+Release: 1%{?dist}
+License: BSD
+Group: Applications/Databases
+Source0: %{name}-%{version}.tar.gz
+#URL: http://example.com/pg_dbms_stats/
+BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-%(%{__id_u} -n)
+Vendor: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
+
+## We use postgresql-devel package
+BuildRequires: postgresql91-devel
+Requires: postgresql91-libs
+
+## Description for "pg_dbms_stats"
+%description
+pg_dbms_stats provides capability to replace planner's statistics with snapshot
+taken at arbitrary timing, so that planner generates stable plans even if
+ANALYZE is invoked after changes of data.
+
+pg_dbms_stats also provides following features:
+ - backup multiple generations of planner statistics to reuse plans after
+ - import planner statistics from another system for tuning an testing
+
+Note that this package is available for only PostgreSQL 9.1.
+
+## pre work for build pg_dbms_stats
+%prep
+%setup -q
+
+## Set variables for build environment
+%build
+make %{?_smp_mflags}
+
+## Set variables for install
+%install
+rm -rf %{buildroot}
+install -d %{buildroot}%{_libdir}
+install -m 755 pg_dbms_stats.so %{buildroot}%{_libdir}/pg_dbms_stats.so
+install -d %{buildroot}%{_datadir}/extension
+install -m 644 pg_dbms_stats--1.0.sql %{buildroot}%{_datadir}/extension/pg_dbms_stats--1.0.sql
+install -m 644 pg_dbms_stats.control %{buildroot}%{_datadir}/extension/pg_dbms_stats.control
+install -d %{buildroot}%{_docdir}/extension
+install -m 644 export_effective_stats-9.1.sql.sample %{buildroot}%{_docdir}/extension/export_effective_stats-9.1.sql.sample
+install -m 644 export_plain_stats-9.1.sql.sample %{buildroot}%{_docdir}/extension/export_plain_stats-9.1.sql.sample
+
+%clean
+rm -rf %{buildroot}
+
+%files
+%defattr(0755,root,root)
+%{_libdir}/pg_dbms_stats.so
+%defattr(0644,root,root)
+%{_datadir}/extension/pg_dbms_stats--1.0.sql
+%{_datadir}/extension/pg_dbms_stats.control
+%{_docdir}/extension/export_effective_stats-9.1.sql.sample
+%{_docdir}/extension/export_plain_stats-9.1.sql.sample
+
+# History of pg_dbms_stats.
+%changelog
+* Wed Sep 05 2012 Shigeru Hanada <shigeru.hanada@gmail.com>
+- Initial cut for 1.0.0
+
--- /dev/null
+# SPEC file for pg_dbms_stats
+# Copyright(C) 2012 NIPPON TELEGRAPH AND TELEPHONE CORPORATION
+
+%define _pgdir /usr/pgsql-9.2
+%define _bindir %{_pgdir}/bin
+%define _libdir %{_pgdir}/lib
+%define _datadir %{_pgdir}/share
+%define _docdir /usr/share/doc/pgsql
+
+## Set general information for pg_dbms_stats.
+Summary: Plan Stabilizer for PostgreSQL 9.2
+Name: pg_dbms_stats92
+Version: 1.3.0
+Release: 1%{?dist}
+License: BSD
+Group: Applications/Databases
+Source0: %{name}-%{version}.tar.gz
+#URL: http://example.com/pg_dbms_stats/
+BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-%(%{__id_u} -n)
+Vendor: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
+
+## We use postgresql-devel package
+BuildRequires: postgresql92-devel
+Requires: postgresql92-libs
+
+## Description for "pg_dbms_stats"
+%description
+pg_dbms_stats provides capability to replace planner's statistics with snapshot
+taken at arbitrary timing, so that planner generates stable plans even if
+ANALYZE is invoked after changes of data.
+
+pg_dbms_stats also provides following features:
+ - backup multiple generations of planner statistics to reuse plans after
+ - import planner statistics from another system for tuning an testing
+
+Note that this package is available for only PostgreSQL 9.2.
+
+## pre work for build pg_dbms_stats
+%prep
+%setup -q
+
+## Set variables for build environment
+%build
+make %{?_smp_mflags}
+
+## Set variables for install
+%install
+rm -rf %{buildroot}
+install -d %{buildroot}%{_libdir}
+install -m 755 pg_dbms_stats.so %{buildroot}%{_libdir}/pg_dbms_stats.so
+install -d %{buildroot}%{_datadir}/extension
+install -m 644 pg_dbms_stats--1.0.sql %{buildroot}%{_datadir}/extension/pg_dbms_stats--1.0.sql
+install -m 644 pg_dbms_stats.control %{buildroot}%{_datadir}/extension/pg_dbms_stats.control
+install -d %{buildroot}%{_docdir}/extension
+install -m 644 export_effective_stats-9.2.sql.sample %{buildroot}%{_docdir}/extension/export_effective_stats-9.2.sql.sample
+install -m 644 export_plain_stats-9.2.sql.sample %{buildroot}%{_docdir}/extension/export_plain_stats-9.2.sql.sample
+
+%clean
+rm -rf %{buildroot}
+
+%files
+%defattr(0755,root,root)
+%{_libdir}/pg_dbms_stats.so
+%defattr(0644,root,root)
+%{_datadir}/extension/pg_dbms_stats--1.0.sql
+%{_datadir}/extension/pg_dbms_stats.control
+%{_docdir}/extension/export_effective_stats-9.2.sql.sample
+%{_docdir}/extension/export_plain_stats-9.2.sql.sample
+
+# History of pg_dbms_stats.
+%changelog
+* Wed Sep 05 2012 Shigeru Hanada <shigeru.hanada@gmail.com>
+- Initial cut for 1.0.0
+
--- /dev/null
+<!DOCTYPE html PUBLIC "-//W3C//DTD html 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<head>
+<title>pg_dbms_stats</title>
+<link rel="home" title="pg_dbms_stats" href="index.html">
+<link rel="stylesheet" TYPE="text/css"href="style.css">
+<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+</head>
+
+<body>
+<h1 id="pg_dbms_stats">pg_dbms_stats</h1>
+<div class="navigation">
+ <a href="pg_dbms_stats-ja.html">pg_dbms_stats</a> >
+ <a href="objects-ja.html">Appendix A. オブジェクト一覧</a>
+</div>
+
+<div class="index">
+<ol>
+<li><a href="#functions">関数</a></li>
+<li><a href="#table">テーブル</a></li>
+<li><a href="#view">ビュー</a></li>
+</ol>
+</div>
+
+<h2 id="functions">関数</h2>
+<p>
+pg_dbms_stats は下記の関数を含みます。
+<br>
+<p>各関数の意味は以下の通りです。</p>
+<table>
+<thead>
+<tr>
+<tr><th>機能</th><th>関数</th><th>引数</th><th>オブジェクト単位</th><th>戻り値</th></tr>
+</tr>
+</thead>
+<tbody>
+<tr><td rowspan="6" nowrap>バックアップ</td>
+ <td nowrap>dbms_stats.backup_database_stats</td>
+ <td nowrap>comment</td>
+ <td nowrap>データベース</td>
+ <td rowspan="6">int8</td></tr>
+<tr><td nowrap>dbms_stats.backup_schema_stats</td>
+ <td nowrap>schemaname、comment</td>
+ <td>スキーマ</td></tr>
+<tr><td rowspan="2" nowrap>dbms_stats.backup_table_stats</td>
+ <td nowrap>relname、comment</td>
+ <td rowspan="2">テーブル</td></tr>
+<tr><td nowrap>schemaname、tablename、comment</td></tr>
+<tr><td rowspan="2" nowrap>dbms_stats.backup_column_stats</td>
+ <td nowrap>relname、attname、comment</td>
+ <td rowspan="2">カラム</td></tr>
+<tr><td nowrap>schemaname、tablename、attname、comment</td></tr>
+<tr><td rowspan="7" nowrap>リストア</td>
+ <td nowrap>dbms_stats.restore_database_stats</td>
+ <td nowrap>timestamp</td>
+ <td nowrap>データベース</td>
+ <td rowspan="7">regclass</td></tr>
+<tr><td nowrap>dbms_stats.restore_schema_stats</td>
+ <td nowrap>schemaname、timestamp</td>
+ <td>スキーマ</td></tr>
+<tr><td rowspan="2" nowrap>dbms_stats.restore_table_stats</td>
+ <td nowrap>relname、timestamp</td>
+ <td rowspan="2">テーブル</td></tr>
+<tr><td nowrap>schemaname、tablename、timestamp</td></tr>
+<tr><td rowspan="2" nowrap>dbms_stats.restore_column_stats</td>
+ <td nowrap>relname、attname、timestamp</td>
+ <td rowspan="2">カラム</td></tr>
+<tr><td nowrap>schemaname、tablename、attname、timestamp</td></tr>
+<tr><td nowrap>dbms_stats.restore_stats</td>
+ <td nowrap>backup_id</td>
+ <td>バックアップ</td></tr>
+<tr><td rowspan="6" nowrap>ロック</td>
+ <td nowrap>dbms_stats.lock_database_stats</td>
+ <td nowrap>(なし)</td>
+ <td nowrap>データベース</td>
+ <td rowspan="6">regclass</td></tr>
+<tr><td nowrap>dbms_stats.lock_schema_stats</td>
+ <td nowrap>schemaname</td>
+ <td>スキーマ</td></tr>
+<tr><td rowspan="2" nowrap>dbms_stats.lock_table_stats</td>
+ <td nowrap>relname</td>
+ <td rowspan="2">テーブル</td></tr>
+<tr><td nowrap>schemaname、tablename</td></tr>
+<tr><td rowspan="2" nowrap>dbms_stats.lock_column_stats</td>
+ <td nowrap>relname、attname</td>
+ <td rowspan="2">カラム</td></tr>
+<tr><td nowrap>schemaname、tablename、attname</td></tr>
+<tr><td rowspan="6" nowrap>ロック解除</td>
+ <td nowrap>dbms_stats.unlock_database_stats</td>
+ <td nowrap>(なし)</td>
+ <td nowrap>データベース</td>
+ <td rowspan="6">regclass</td></tr>
+<tr><td nowrap>dbms_stats.unlock_schema_stats</td>
+ <td nowrap>schemaname</td>
+ <td>スキーマ</td></tr>
+<tr><td rowspan="2" nowrap>dbms_stats.unlock_table_stats</td>
+ <td nowrap>relname</td>
+ <td rowspan="2">テーブル</td></tr>
+<tr><td nowrap>schemaname、tablename</td></tr>
+<tr><td rowspan="2" nowrap>dbms_stats.unlock_column_stats</td>
+ <td nowrap>relname、attname</td>
+ <td rowspan="2">カラム</td></tr>
+<tr><td nowrap>schemaname、tablename、attname</td></tr>
+<tr><td rowspan="6" nowrap>インポート</td>
+ <td nowrap>dbms_stats.import_database_stats</td>
+ <td nowrap>src</td>
+ <td nowrap>データベース</td>
+ <td rowspan="6">void</td></tr>
+<tr><td nowrap>dbms_stats.import_schema_stats</td>
+ <td nowrap>schemaname、src</td>
+ <td>スキーマ</td></tr>
+<tr><td rowspan="2" nowrap>dbms_stats.import_table_stats</td>
+ <td nowrap>relname、src</td>
+ <td rowspan="2">テーブル</td></tr>
+<tr><td nowrap>schemaname、tablename、src</td></tr>
+<tr><td rowspan="2" nowrap>dbms_stats.import_column_stats</td>
+ <td nowrap>relname、attname、src</td>
+ <td rowspan="2">カラム</td></tr>
+<tr><td nowrap>schemaname、tablename、attname、src</td></tr>
+<tr><td nowrap>パージ</td>
+ <td nowrap>dbms_stats.purge_stats</td>
+ <td nowrap>backup_id、force</td>
+ <td>バックアップ</td>
+ <td>dbms_stats.backup_history</td></tr>
+</tbody>
+</table>
+
+<p>各関数で用いられている引数の意味は以下の通りです。</p>
+<table>
+<thead>
+<tr>
+<tr><th>引数</th><th>データ型</th><th>意味</th></tr>
+</tr>
+</thead>
+<tbody>
+<tr><td nowrap>schemaname</td>
+ <td nowrap>text</td>
+ <td>処理対象のスキーマ名です。</td></tr>
+<tr><td nowrap>relname</td>
+ <td nowrap>regclass</td>
+ <td>処理対象のテーブル名です。ただし、(スキーマ名).(テーブル名) という形になります。</td></tr>
+<tr><td nowrap>tablename</td>
+ <td nowrap>text</td>
+ <td>処理対象のテーブル名です。</td></tr>
+<tr><td nowrap>attname</td>
+ <td nowrap>text</td>
+ <td>処理対象のカラム名です。</td></tr>
+<tr><td nowrap>comment</td>
+ <td nowrap>text</td>
+ <td>バックアップを識別するためのコメントです。</td></tr>
+<tr><td nowrap>as_of_timestamp</td>
+ <td nowrap>timestamptz</td>
+ <td>リストアしたいタイミングの基準になるタイムスタンプです。このタイムスタンプ以前で最新のバックアップデータをリストアします。該当するバックアップが存在しない場合、統計情報は現在プランナが見ている値から変更されません。</td></tr>
+<tr><td nowrap>src</td>
+ <td nowrap>text</td>
+ <td>インポート対象のファイルの絶対パスです。</td></tr>
+<tr><td nowrap>backup_id</td>
+ <td nowrap>bigint</td>
+ <td>リストアやパージの対象となるバックアップIDです。
+リストアの場合、一致するバックアップIDのバックアップデータをリストアします。
+パージの場合、一致するバックアップID以前のバックアップを削除します。
+</td></tr>
+<tr><td nowrap>force</td>
+ <td nowrap>bool</td>
+ <td>パージするとき、バックアップを強制的に削除するかを決める変数です。
+trueの場合、対象範囲のバックアップを全て削除します。
+falseの場合、対象範囲外にデータベース単位のバックアップデータが存在しなければ、警告メッセージを出力して処理を中断します。
+デフォルトはfalseです。
+</td></tr>
+</tbody>
+</table>
+<p>また、統計情報のエクスポート機能は、SQLファイルで実装しています。
+<br>
+各SQLファイルの意味は以下の通りです。なお、出力ファイル名のデフォルトはexport_stats.dmpです。</p>
+<table>
+<thead>
+<tr>
+<tr><th>ファイル名</th><th>対象統計情報</th><th>備考</th></tr>
+</tr>
+</thead>
+<tbody>
+<tr><td nowrap>export_effective_stats.sql.sample</td>
+ <td nowrap>プランナが見ている統計情報</td>
+ <td>-</td></tr>
+<tr>
+ <td nowrap>export_plain_stats.sql.sample</td>
+ <td nowrap>真の統計情報のみ</td>
+ <td>pg_dbms_stats未インストールでも使用可能です。</td></tr>
+</tbody>
+</table>
+
+<h2 id="table">テーブル</h2>
+<p>pg_dbms_statsは以下のテーブルを含みます。</p>
+<p>各テーブルの意味は以下の通りです。</p>
+<table>
+<thead>
+<tr>
+<tr><th>テーブル名</th><th>列名</th><th>データ型</th><th>意味</th></tr>
+</tr>
+</thead>
+<tbody>
+<tr><td rowspan="4" nowrap>dbms_stats.backup_history</td>
+ <td nowrap>id</td>
+ <td nowrap>int8</td>
+ <td>バックアップ時に付与されたバックアップIDです。</td></tr>
+<tr><td nowrap>time</td>
+ <td nowrap>timestamptz</td>
+ <td>バックアップ時のタイムスタンプです。</td></tr>
+<tr><td nowrap>unit</td>
+ <td nowrap>char(1)</td>
+ <td>バックアップ時のオブジェクト単位です。<br>
+d:データベース、s:スキーマ、t:テーブル、c:列</td></tr>
+<tr><td nowrap>comment</td>
+ <td nowrap>text</td>
+ <td>バックアップ時に指定したコメントです。</td></tr>
+</tbody>
+</table>
+
+<h2 id="view">ビュー</h2>
+<p>pg_dbms_stats は下記のビューを含みます。</p>
+<p>各ビューの意味は以下の通りです。</p>
+<table>
+<thead>
+<tr>
+<tr><th>ビュー名</th><th>意味</th></tr>
+</tr>
+</thead>
+<tbody>
+<tr><td nowrap>dbms_stats.relation_stats_effective</td>
+ <td>プランナに見せるテーブルごとの統計情報を表示します。PostgreSQLのpg_classカタログに対応します。</td></tr>
+<tr><td nowrap>dbms_stats.column_stats_effective</td>
+ <td>プランナに見せるカラムごとの統計情報を表示します。PostgreSQLのpg_statisticカタログに対応します。</td></tr>
+<tr><td nowrap>dbms_stats.status</td>
+ <td>プランナに見せるカラムごとの統計情報のうち、ユーザが読み取り可能なものを表示します。PostgreSQLのpg_statsビューに対応します。</td></tr>
+</tbody>
+</table>
+
+<h2 id="seealso">関連項目</h2>
+<a href="http://www.postgresql.jp/document/current/html/app-psql.html">psql</a>,
+<a href="http://www.postgresql.jp/document/current/html/app-vacuumdb.html">vacuumdb</a>
+
+<hr />
+<p class="footer">Copyright (c) 2009-2012, NIPPON TELEGRAPH AND TELEPHONE CORPORATION</p>
+
+</body>
+</html>
--- /dev/null
+<!DOCTYPE html PUBLIC "-//W3C//DTD html 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<head>
+<title>pg_dbms_stats</title>
+<link rel="home" title="pg_dbms_stats" href="index.html">
+<link rel="stylesheet" TYPE="text/css"href="style.css">
+<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+</head>
+
+<body>
+<h1 id="pg_dbms_stats">pg_dbms_stats 1.2.0</h1>
+<div class="navigation">
+ <a href="pg_dbms_stats-ja.html">pg_dbms_stats</a>
+</div>
+<hr>
+
+<div class="index">
+<ol>
+<li><a href="#name">名前</a></li>
+<li><a href="#synopsis">概要</a></li>
+<li><a href="#description">機能説明</a></li>
+<li><a href="#install">インストール</a></li>
+<li><a href="#uninstall">アンインストール</a></li>
+<li><a href="#examples">使用例</a></li>
+<li><a href="#restrictions">使用上の注意と制約</a></li>
+<li><a href="#details">詳細</a></li>
+<li><a href="#requirement">動作環境</a></li>
+<li><a href="#seealso">関連項目</a></li>
+<li><a href="objects-ja.html">Appendix A. オブジェクト一覧</a></li>
+</ol>
+</div>
+
+<h2 id="name">名前</h2>
+<p>pg_dbms_stats -- 統計情報の管理を行い、間接的に実行計画を制御します。</p>
+
+<h2 id="synopsis">概要</h2>
+<p>PostgreSQL は ANALYZE コマンドによりテーブルやインデックスからサンプリングした値を集計して統計情報として保持しています。
+クエリ・オプティマイザは、この統計情報を利用してクエリのコストを計算し、最もコストの低い実行計画を選択します。このため、データの量や特性が変化したり、統計情報の精度が不十分であったりした場合には、選択される実行計画が変化する場合があります。</p>
+<p>pg_dbms_stats パッケージはこのような予期せぬ実行計画の変化を防ぐための機能拡張です。プランナの処理に割り込んで、プランナが参照する統計情報を事前に作成したダミー統計情報に差し替えることで、選択される統計情報を固定します。「実行計画が運用中に急に変化し、システムの性能が低下する」というリスクを抑えたい場合に有効です。</p>
+
+<h2 id="description">機能説明</h2>
+<p>pg_dbms_statsには、プランナが使用する統計情報を操作する機能として以下の7つがあります。なお、エクスポートを除く各機能は、SQL関数経由で利用します。各関数の詳細は<a href="objects-ja.html">オブジェクト一覧</a>を参照してください。</p>
+
+<h3>バックアップ</h3>
+<dl>
+<dt>概要</dt>
+<dd>現在選択されている実行計画を将来的に再現するために、現在プランナが見ている統計情報をバックアップとして保存します。</dd>
+<dt>利用方法</dt>
+<dd>backup_<オブジェクト単位>_stats()というSQL関数を実行</dd>
+<dt>詳細</dt>
+<dd>
+<p>
+バックアップに含める統計情報の範囲は、データベース(現在接続中のもの)・スキーマ・テーブル・列のいずれかの単位で指定できます。
+例えばあるスキーマに含まれている全ての表とそれらの全ての列の統計情報を保存しておきたい場合は、スキーマ単位でバックアップします。基本的にはデータベース単位またはスキーマ単位などの大き目の単位でバックアップしておくことをお勧めします。</p>
+<p>現在保存されているバックアップに関する情報は、dbms_stats.backup_historyテーブルで参照できます。dbms_stats.backup_historyテーブルの詳細については<a href="objects-ja.html#table">テーブル</a>を参照してください。</p>
+</dd>
+</dl>
+
+<h3>リストア</h3>
+<dl>
+<dt>概要</dt>
+<dd>バックアップ時点で選択されていた実行計画が再び選択されるように、バックアップした統計情報を復元して固定します。</dd>
+<dt>利用方法</dt>
+<dd>restore_stats()、またはrestore_<オブジェクト単位>_stats()というSQL関数を実行</dd>
+<dt>詳細</dt>
+<dd>
+<p>
+リストア時に指定したオブジェクト以外の統計情報以外は変更されず元のまま残ります。リストアするバックアップ統計情報の指定方法は、以下の二種類があります。
+<dl>
+<dt>バックアップID</dt>
+<dd>restore_stats()という関数にバックアップIDを指定して実行することで、そのIDを持つバックアップに含まれる統計情報を全てリストアします。データベースやスキーマ単位でバックアップを定期的に取得する運用の場合は、この指定方法が単純でよいでしょう。なお、バックアップIDはデータベースごとに一意になっていますので、複数データベースでpg_dbms_statsを利用している場合は、他のデータベースのバックアップIDと混同しないように注意してください。</dd>
+<dt>オブジェクト＋タイムスタンプ</dt>
+<dd>restore_<オブジェクト単位>_stats()オブジェクト(データベース、スキーマ、テーブル、列のいずれか)を指定して実行することで、それに含まれる全ての列と表の統計情報を、指定したタイムスタンプ時点の状態にリストアします。ただし、指定するタイムスタンプより前にリストアするよりも広い範囲のバックアップを取得してあることが前提です。<br/>
+ある時点までは適切な実行計画が選択されていたことが分かっているが、バックアップを細かい単位で取得していてどれをリストアすればよいか分からない、という場合はこの指定方法が便利です。
+</dd>
+</dl>
+リストアした時点で統計情報はバックアップした時点のもので固定されていますので、リストア後に明示的にロックする必要はありません。
+</dd>
+</dl>
+</p>
+
+<h3>パージ</h3>
+<dl>
+<dt>概要</dt>
+<dd>不要になった統計情報バックアップを一括削除する機能で、指定したバックアップID以前のバックアップを削除します。</dd>
+<dt>利用方法</dt>
+<dd>purge_stats()というSQL関数を実行</dd>
+<dt>詳細</dt>
+<dd>
+<p>基本的には任意世代以前のバックアップを削除できますが、不用意にバックアップを削除してしまうことを防ぐために、パージ後にデータベース単位のバックアップがひとつも残らない状況での一括削除はできません。この制限は、ユーザが強制削除を指定することで回避可能です。</p>
+</dd>
+</dl>
+
+<h3>ロック</h3>
+<dl>
+<dt>概要</dt>
+<dd>ANALYZEを実行して統計情報が変化しても現在選択されている実行計画が選択され続けるように、プランナが参照する統計情報を固定します。</dd>
+<dt>利用方法</dt>
+<dd>lock_<オブジェクト単位>_stats()というSQL関数を実行</dd>
+<dt>詳細</dt>
+<dd>
+<p>統計情報をロックする範囲は、データベース(現在接続中のもの)・スキーマ・テーブル・列のいずれかの単位で指定できます。</p>
+</dd>
+</dl>
+
+<h3>ロック解除</h3>
+<dl>
+<dt>概要</dt>
+<dd>PostgreSQL本来の実行計画選択基準に戻すために、統計情報の固定状態を解除します。</dd>
+<dt>利用方法</dt>
+<dd>unlock_<オブジェクト単位>_stats()というSQL関数を実行</dd>
+<dt>詳細</dt>
+<dd>
+<p>ロックを解除すると、プランナがpg_classやpg_statisticを参照するようになります。統計情報のロックを解除する範囲は、データベース(現在接続中のもの)・スキーマ・テーブル・列のいずれかの単位で指定できます。なお、ロックと異なる単位を指定してロック解除することも可能です。
+</dd>
+</dl>
+</p>
+
+<h3>エクスポート</h3>
+<dl>
+<dt>概要</dt>
+<dd>現在の統計情報を外部ファイルに出力します。</dd>
+<dt>利用方法</dt>
+<dd>エクスポート対象別のサンプルSQLファイル(export_<種別>_stats-<PGバージョン>.sql.sample)を参考にCOPY文を作成し、psqlコマンドなどで実行</dd>
+<dt>詳細</dt>
+<dd>
+<p>用途に応じて、以下の二種類の統計情報をエクスポートできます。なお、エクスポートにはCOPYコマンドを使用するので、エクスポートファイル出力先ディレクトリにはPostgreSQL実行ユーザでファイルを作成できるディレクトリを指定してください。 </p>
+<dl>
+<dt>PostgreSQL本来の統計情報</dt>
+<dd>pg_classやpg_statisticといったPostgreSQLが元々持っている統計情報で、pg_dbms_statsがインストールされていない本番運用環境から検証環境などの別環境に統計情報をコピーして、解析やチューニングを実行する場合に向いています。</dd>
+<dt>現在有効な統計情報</dt>
+<dd>ロックやリストア、インポートなどによって作成された、pg_dbms_statsが現在プランナに見せている統計情報です。pg_dbms_statsが有効な環境で統計情報を編集してチューニングした後にその統計情報を本番環境に戻す場合や、統計情報のバックアップをOSファイルで保存しておきたい場合などに向いています。</dd>
+</dl>
+</p>
+<p>サンプルファイルは、「pg_config --docdir」で表示されるディレクトリにあるextensionサブディレクトリにインストールされています。</p>
+</dd>
+</dl>
+
+<h3>インポート</h3>
+<dl>
+<dt>概要</dt>
+<dd>エクスポート機能で作成した外部ファイルから統計情報を読み込み、プランナが参照する統計情報として固定します。</dd>
+<dt>利用方法</dt>
+<dd>import_<オブジェクト単位>_stats()というSQL関数を実行</dd>
+<dt>詳細</dt>
+<dd>
+<p>インポートする統計情報の範囲は、データベース(現在接続中のもの)・スキーマ・テーブル・列のいずれかの単位で指定できます。インポートするファイルは、PostgreSQL実行ユーザが読み取れるディレクトリに配置してください。</p>
+</dd>
+</dl>
+
+<h2 id="install">インストール</h2>
+<p>pg_dbms_stats のインストール方法は、標準の拡張(EXTENSION)と同様です。</p>
+
+<h3>ビルド</h3>
+<p>make を使ってビルドできます。PostgreSQLをインストールしたOSユーザでインストールしてください。
+このとき、pg_config でビルドに必要な情報を収集しますので、複数バージョンがインストールされた環境では PATH 環境変数に注意して下さい。</p>
+<pre>$ cd pg_dbms_stats
+$ make
+$ su
+# make install</pre>
+
+<h3 id="create_extension">データベースへの登録</h3>
+<p>pg_dbms_stats は PostgreSQL の拡張(EXTENSION)ですので、この機能を利用するデータベースにスーパーユーザで接続して CREATE EXTENSION コマンド を実行してください。</p>
+<p>コマンドの例を以下に示します。
+<i>dbname</i>は対象となるデータベース名を意味します。</p>
+<pre>$ psql -d <i>dbname</i> -c "CREATE EXTENSION pg_dbms_stats"</pre>
+<p>登録解除は DROP EXTENSION コマンドで可能です。登録を解除しても dbms_stats スキーマはそのまま残りますので、必要に応じて削除して下さい。</p>
+
+<h3>pg_dbms_statsのロード</h3>
+<p>pg_dbms_statsを有効にするには、以下の例のようにpg_dbms_statsの共有ライブラリをロードしてください。
+全てのセッションでpg_dbms_statsを有効にするには、postgresql.confのshared_preload_libraries GUCパラメータに'pg_dbms_stats'を追加してからサーバを再起動して下さい。
+<pre>postgres=# LOAD 'pg_dbms_stats';
+LOAD
+postgres=#</pre>
+</p>
+
+<p><strong>注意</strong>:
+pg_dbms_stats を<a href="#create_extension">データベースに登録</a>せずに、ロード後にSQL文を実行すると以下に示す例のようなエラーとなります。
+pg_dbms_stats を使うときは、データベースへの登録を忘れないように注意してください。
+<pre>test=# SELECT * FROM test;
+ERROR: schema "dbms_stats" does not exist
+LINE 1: SELECT relpages, reltuples, curpages FROM dbms_stats.relati...
+ ^
+QUERY: SELECT relpages, reltuples, curpages FROM dbms_stats.relation_stats_locked WHERE relid = $1
+test=#</pre>
+</p>
+
+<h3>pg_dbms_statsの無効化</h3>
+<p>pg_dbms_statsをロードしたうえで無効にしたい場合は、以下の例のようにpg_dbms_stats.use_locked_statsをoffに設定してください。
+<pre>test=# SET pg_dbms_stats.use_locked_stats TO off;
+SET
+test=# SELECT * FROM test; -- 通常の基準でプランを作成
+...
+test=# SET pg_dbms_stats.use_locked_stats TO on;
+SET
+test=# SELECT * FROM test; -- ダミー統計情報でプランを作成
+...
+</pre>
+</p>
+
+<p>全てのセッションでpg_dbms_statsを無効にするには、postgresql.confでpg_dbms_stats.use_locked_statsをoffに設定してからサーバを再起動して下さい。
+PostgreSQL 9.1の環境でpg_dbms_stats.use_locked_statsをpostgresql.confファイルで設定するためには<a href="http://www.postgresql.jp/document/9.1/html/runtime-config-custom.html#GUC-CUSTOM-VARIABLE-CLASSES">custom_variable_classes</a>にpg_dbms_statsを加える必要があります。
+<pre># postgresql.conf
+shared_preload_libraries = 'pg_dbms_stats'
+custom_variable_classes = 'pg_dbms_stats' # 9.2以降は廃止されたため記述不要
+pg_dbms_stats.use_locked_stats = off</pre>
+PostgreSQL 9.2以降ではcustom_variable_classesは廃止されているため、pg_dbms_stats.use_locked_statsを標準のGUCパラメータと同様に記述することができます。
+</p>
+
+<h2 id="uninstall">アンインストール</h2>
+<p>
+pg_dbms_stats をアンインストールするときは、以下の手順を実行してください。
+<i>dbname</I>は対象となるデータベース名を意味します。
+<ol>
+<li>pg_dbms_statsをインストールしたOSユーザでmake uninstallを実行してください。</li>
+<pre>$ cd pg_dbms_stats
+$ su
+# make uninstall</pre>
+<li>pg_dbms_statsを登録したデータベースにスーパーユーザで接続して DROP EXTENSION コマンドを実行してください。</li>
+<pre>$ psql -d <i>dbname</I> -c "DROP EXTENSION pg_dbms_stats"</pre>
+<li>pg_dbms_stats 独自の統計情報(ロック機能やバックアップ機能で保存したもの)が必要ない場合は、dbms_statsスキーマを削除してください。</li>
+<pre>$ psql -d <i>dbname</I> -c "DROP SCHEMA dbms_stats"</pre>
+</ol>
+</p>
+
+<h2 id="examples">使用例</h2>
+<p>大きく分けて「バックアップ主体」「ロック主体」「エクスポート主体」の3つの運用方法があります。
+どの運用方法が適しているか判断できない場合には、まず「バックアップ主体」で運用することをお奨めします。
+</p>
+
+<h3>統計情報をバックアップする運用</h3>
+<p>サービス運用中に統計情報を日々バックアップし、問題が生じたらリストアする場合には backup_xxx() と restore_xxx() 関数を使用します。
+特に問題がない限り、データベース単位でバックアップしてください。</p>
+<p>統計情報をリストアする方法は、バックアップ世代を表すバックアップIDを指定する方法と、どの時点の統計情報に復元するかを表すタイムスタンプを指定する方法の2種類です。
+バックアップIDを指定してリストアする場合、 バックアップIDが一致するデータを使ってリストアします。 リストアしたいバックアップ世代のIDを指定してリストアしてください。
+タイムスタンプを指定してリストアする場合、 オブジェクトごとに、指定した日時以前のバックアップデータを使ってリストアします。 リストアしたい日時を指定してデータベース単位でリストアしてください。
+特に問題がない限り、バックアップIDを指定する方法でリストアしてください。
+</p>
+<pre>-- 日々バックアップを取り、その後 ANALYZE する。
+test=# SELECT dbms_stats.backup_database_stats('comment');
+ backup_database_stats
+-----------------------
+ 1
+(1 row)
+
+test=# ANALYZE;
+ANALYZE
+test=#
+</pre>
+<pre>-- 1日前のバックアップを書き戻し、その値でロックする。
+test=# SELECT dbms_stats.restore_database_stats(now() - '1 day');</pre>
+<p><strong>注意</strong>:
+タイムスタンプを指定してリストアする場合、リストア対象のオブジェクトに含まれるリレーションやカラムそれぞれについて、指定したタイムスタンプ以前で最新の統計情報をリストアします。
+このため、単位の小さなオブジェクトでバックアップしていたとき、指定したタイムスタンプ以前にバックアップしていないリレーションや列の統計情報はリストアされず、統計情報がユーザの想定通りにならない場合がありますので注意してください。
+</p>
+<p>統計情報バックアップデータをリストアしたときの例を以下に示します。
+なお、time列は各リレーションの統計情報をバックアップした時のタイムスタンプを意味します。</p>
+<pre>
+test=# SELECT b.id, b.time, r.relname
+ FROM dbms_stats.relation_stats_backup r
+ JOIN dbms_stats.backup_history b ON (r.id=b.id)
+ ORDER BY id;
+ id | time | relname
+----+------------------------+-----------------
+ 4 | 2012-01-01 00:00:00+09 | public.droptest
+ 5 | 2012-01-02 12:00:00+09 | public.test
+(5 rows)
+
+test=# SELECT dbms_stats.restore_database_stats('2012-01-03 00:00:00+09');
+ restore_database_stats
+------------------------
+ test
+ droptest
+(2 rows)
+
+test=#</pre>
+
+<h3>統計情報をロックする運用</h3>
+<p>サービス開始時に統計情報をロックして、そのまま運用する場合には、lock_xxx() 関数を使用します。</p>
+<pre>test=# SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ droptest
+ test
+(2 rows)
+
+test=#
+</pre>
+
+<h3>統計情報をエクスポートする運用</h3>
+<p>サービス運用中の統計情報をエクスポートし、他のデータベースにインポートすることで実行計画を再現したい場合には、export_xxx_stats.sql_sampleファイルとimport_xxx()関数を使用します。</p>
+<pre>$ cd pg_dbms_stats
+$ psql -d test -f export_effective_stats.sql_sample
+BEGIN
+COMMIT
+$ psql -d test2 -c "SELECT dbms_stats.import_database_stats('$PWD/export_stats.dmp')"
+ import_database_stats
+-----------------------
+
+(1 row)
+
+$
+</pre>
+<p><strong>注意</strong>:
+統計情報をエクスポートするとき、現在のパスにexport_stats.dmpファイルを作成します。
+このとき、同名のファイルが既に存在する場合、新しいエクスポート結果で上書きします。
+上書きを避けたい場合は、既存のファイル名を変更するなどして対応してください。
+<br>
+また、統計情報をインポートするときに指定する情報は、対象となるファイルの絶対パスです。
+相対パスを指定すると以下に示す例のようなエラーとなりますので注意してください。
+</p>
+<pre>test=# select dbms_stats.import_database_stats('export_stats.dmp');
+ERROR: relative path not allowed for dbms_stats_export to file
+test=#</pre>
+<p>また、エクスポートファイルにはCOPYのバイナリフォーマットを利用しているため、エクスポート元とインポート先でアーキテクチャやPostgreSQLバージョンに差がある場合は正常に動作しない場合があります。詳しくは、<a href="http://www.postgresql.jp/document/current/html/sql-copy.html">COPYコマンドのドキュメント</a>を参照して下さい。</p>
+
+<h2 id="restrictions">使用上の注意と制約</h2>
+<p>pg_dbms_stats を使用する際には、以下の使用上の注意と制約があります。</p>
+
+<dl>
+<dt>利用前に必要な作業</dt>
+<dd>pg_dbms_statsのロック機能やバックアップ機能を使用する前に、必ず一回はANALYZEコマンドで統計情報を取得してください。統計情報が存在しない状態でロックやバックアップを実行した場合、エラーは発生しませんが実行計画は制御できません。
+</dd>
+<dt>統計情報のバックアップ契機</dt>
+<dd>ANALYZEコマンドや統計情報の書き換えをトリガとして統計情報をバックアップすることはできません。
+ジョブ管理ツールから定期的に統計情報をバックアップするか、autovacuum の ANALYZE を無効化し、統計情報のバックアップと取得をセットのジョブとして実行してください。</dd>
+<dt>ツールの用途</dt>
+<dd>このモジュールは過去の統計情報を再現するものであり、新しい実行計画を試すチューニングには利用できません。</dd>
+<dt>GUCパラメータの影響</dt>
+<dd>このツールは、実行計画に影響する要素のうち統計情報のみを保存するため、実行計画の生成に関する<a href="http://www.postgresql.jp/document/current/html/runtime-config-query.html">GUCパラメータ</a>が変更された場合は、統計情報を固定していても実行計画が変化する場合があります。</dd>
+<dt>フック関数を使うツールとの競合</dt>
+<dd>pg_dbms_statsでは、以下のフック関数を使用しています。
+<ul>
+<li>get_relation_info_hook: 既存のフック関数を呼び出した後に独自処理</li>
+<li>get_attavgwidth_hook: 既存のフック関数を呼び出さずに独自処理</li>
+<li>get_relation_stats_hook: 既存のフック関数を呼び出さずに独自処理</li>
+<li>get_index_stats_hook: 既存のフック関数を呼び出さずに独自処理</li>
+</ul>
+get_relation_info_hookを使用するツールについては、pg_dbms_statsを後からロードすることで併用可能ですが、残りの三つのフック関数を使用している外部ツールは併用しないでください。
+なお、フック関数とはプランナやエグゼキュータ等のPostgreSQL本体の処理に外部ツールが割り込むために使用する関数です。
+</dd>
+<dt>ダンプ・リストア時の注意点</dt>
+<dd>
+pg_dbms_statsは、列単位の統計情報をユーザ定義テーブルで保持する列に独自に定義したanyarray型を使用しています。この列の値をテキスト形式でダンプするとデータ型の情報が失われるため、リストア時にエラーが発生します。リストア時にエラーが発生します。pg_dbms_statsのオブジェクトを含むダンプ/リストアは、以下の手順で実施してください。
+<ol>
+<li>「COPY <dbms_statsスキーマが持つテーブル名> TO '<ファイル名>' FORMAT binary;」 でpg_dbms_stats が管理している統計情報を <ファイル名>にバイナリ形式で保存します。</li>
+<li>「pgdump --exclude-schema 'dbms_stats' <旧データベース名> > <ダンプファイル名>」 で dbms_stats スキーマを除いてダンプします。</li>
+<li>「pg_restore -d <新データベース名> <ダンプファイル名>」でダンプしたファイルをリストアします。</li>
+<li>pg_dbms_statsをインストールします。</li>
+<li>「COPY <dbms_statsスキーマが持つテーブル名> FROM '<ファイル名>' FORMAT binary;」 で<ファイル名>に保存されている統計情報をdbms_statsスキーマが持つテーブルに保存します。</li>
+</ol>
+</dd>
+<dt>オブジェクト削除時の注意点</dt>
+<dd>オブジェクトを削除する場合は、ロック解除機能やパージ機能を使ってpg_dbms_stats独自の統計情報を先に削除してください。なお、ロック以外にも、リストアやインポートを実行した場合もpg_dbms_stats独自の統計情報が作成されます。</dd>
+</dl>
+
+<h2 id="details">詳細</h2>
+<h3>全体構成</h3>
+<p>pg_dbms_statsは、ANALYZEで作成された統計情報の代わりに pg_dbms_stats が保持する独自の統計情報を PostgreSQL に使わせることで実行計画を制御します。使用する統計情報は、以下のいずれかの方法で選択できます。
+<ul>
+<li>現在の統計情報でロックする</li>
+<li>バックアップから復元する</li>
+<li>エクスポートファイルを取り込む</li>
+</ul>
+</p>
+<p>pg_dbms_stats では、独自の統計情報をいくつかのテーブル/ファイル群で管理します。
+<dl>
+<dt>現在有効な統計情報</dt>
+<dd>プランナが実際に使用する統計情報で、ロック機能やバックアップ機能、インポート機能で作成されます</dd>
+<dt>バックアップ統計情報</dt>
+<dd>バックアップ機能によって保存された任意の時点の統計情報セットで、複数世代保持可能です。バックアップ履歴は履歴テーブルで管理されます。リストア機能で現在有効な統計情報を置き換えられます。</dd>
+<dt>エクスポートされた統計情報</dt>
+<dd>エクスポート機能によって作成された任意の環境の統計情報セットで、OSファイルで保存されます。ファイル名を変えることで複数セットを保持可能です。インポート機能で現在有効な統計情報を置き換えられます。</dd>
+</dl>
+</p>
+<p>なお、pg_dbms_stats が提供するいずれの機能も、PostgreSQL が元々使用してる統計情報 (pg_catalog.pg_classやpg_catalog.pg_statistic) を変更しません。</p>
+<img src="pg_dbms_stats-ja.png" />
+
+<h3>pg_dbms_statsのユーザインターフェース</h3>
+<p>pg_dbms_statsの各機能は、前節で説明した独自の統計情報テーブルの内容をSQL文で更新することで実現されています。ただし、ユーザが直接SQL文を実行すると操作ミスによる削除やデータ不整合などが起こりうるため、ユーザインターフェースとして各機能に対応するSQL関数を提供しており、これらを使っての操作が強く推奨されています。</p>
+
+<h3>autovacuum による ANALYZE の無効化について</h3>
+<p>pg_dbms_stats は ANALYZE を無効化も禁止もしません。
+ANALYZE は pg_statistic システムカタログを変更しますが、最終的に pg_dbms_stats の独自統計情報で値を隠されます。
+効果の無い ANALYZE を繰り返すのは資源の無駄と考えるのであれば、autovacuum による ANALYZE を無効化してください。
+無効化は、下記のように ANALYZE の必要性判定の閾値を上げることで行います。
+ただし、無効化しなくても異常な動作をすることはありません。</p>
+
+<p>全体設定の場合</p>
+<pre># postgresql.conf
+autovacuum_analyze_threshold = 100000
+autovacuum_analyze_scale_factor = 100
+</pre>
+
+<p>個別設定の場合</p>
+<pre>test=# ALTER TABLE tbl SET (
+ autovacuum_analyze_threshold = 100000,
+ autovacuum_analyze_scale_factor = 100);</pre>
+
+<h3>ロックする統計情報について</h3>
+<p>実行計画を作成する際、クエリ・オプティマイザは以下の統計情報または実際のデータの状態に基づいてコストを計算します。pg_dbms_stats は、これら全ての情報をロックすることができます。実際のファイルサイズが変化しても、ロックしたときのファイルサイズを継続して参照します。</p>
+<ul>
+<li>ANALYZE でサンプリングした行の値 (pg_catalog.pg_statistic)</li>
+<li>ANALYZE 時の推定行数 (pg_catalog.pg_class.reltuples)</li>
+<li>ANALYZE 時のファイルサイズ (pg_catalog.pg_class.relpages)</li>
+<li>実行計画作成時のファイルサイズ</li>
+</ul>
+
+<h2 id="requirement">動作環境</h2>
+<dl>
+<dt>PostgreSQLバージョン</dt>
+<dd>PostgreSQL 9.1, 9.2</dd>
+<dt>OS</dt>
+<dd>RHEL 6.1</dd>
+</dl>
+
+<h2 id="seealso">関連項目</h2>
+<a href="http://www.postgresql.jp/document/current/html/app-psql.html">psql</a>,
+<a href="http://www.postgresql.jp/document/current/html/app-vacuumdb.html">vacuumdb</a>
+<a href="http://www.postgresql.jp/document/current/html/sql-copy.html">COPY</a>
+
+<hr />
+<p class="footer">Copyright (c) 2009-2012, NIPPON TELEGRAPH AND TELEPHONE CORPORATION</p>
+
+</body>
+</html>
--- /dev/null
+body {
+ font-family:
+ Lucida Grande, Verdana, Arial, Helvetica,
+ 'メイリオ',
+ 'Meiryo',
+ 'ヒラギノ角ゴ Pro W3',
+ 'Hiragino Kaku Gothic Pro',
+ 'Osaka',
+ 'ＭＳ Ｐゴシック',
+ sans-serif;
+ color: #202020;
+}
+
+/* give the rule a bit of extra space (above and below), since its being used to divide
+ sections on some pages (project summary) */
+HR { margin: 5px 0px 5px 0px }
+
+
+h2, h3, h4, h5, h6 {
+ color: Black;
+ background: none;
+ padding-top: 0.5em;
+ padding-bottom: 0.17em;
+ border-bottom: 1px solid #aaaaaa;
+}
+H1 { font-size: x-large; font-family: Lucida Grande,verdana,arial,helvetica,sans-serif; }
+H2 { font-size: large; font-family: Lucida Grande,verdana,arial,helvetica,sans-serif; }
+H3 { padding-left: 1em; font-size: medium; font-family: Lucida Grande,verdana,arial,helvetica,sans-serif; }
+H4 { padding-left: 2em; font-size: small; font-family: Lucida Grande,verdana,arial,helvetica,sans-serif; }
+H5 { padding-left: 3em; font-size: x-small; font-family: Lucida Grande,verdana,arial,helvetica,sans-serif; }
+H6 { padding-left: 4em; font-size: xx-small; font-family: Lucida Grande,verdana,arial,helvetica,sans-serif; }
+
+pre {
+ font-family: courier,sans-serif;
+ background-color: #FBFBFD;
+ border: 1px dashed #7E7ECB;
+ color: black;
+ line-height: 1.1em; padding: 0.5em;
+ overflow: auto;
+}
+
+li {
+ line-height: 1.4em;
+}
+
+table {
+ background: #f9f9f9;
+ border: 1px solid #aaa;
+ border-collapse: collapse;
+}
+
+th, td {
+ border: 1px solid #aaa;
+ padding: 0.2em;
+}
+
+thead th {
+ background: #f2f2f2;
+ text-align: center;
+}
+
+tbody th {
+ background: #f2f2f2;
+ text-align: left;
+}
+
+div.index {
+ float:right;
+ border:thin solid black;
+ background-color: white;
+ padding-top: 0.2em;
+ padding-bottom: 0.2em;
+ padding-left: 1em;
+ padding-right: 1em;
+ margin-left: 0.5em;
+}
+
+p.footer {
+ text-align: right;
+ font-size: small;
+}
--- /dev/null
+/*
+ * dump.c
+ *
+ * Copyright (c) 2009-2012, NIPPON TELEGRAPH AND TELEPHONE CORPORATION
+ * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ */
+#include "postgres.h"
+
+#include "libpq/pqformat.h"
+#include "utils/array.h"
+#include "utils/builtins.h"
+#include "utils/lsyscache.h"
+#include "utils/memutils.h"
+
+PG_FUNCTION_INFO_V1(dbms_stats_array_recv);
+
+extern Datum dbms_stats_array_recv(PG_FUNCTION_ARGS);
+
+static void ReadArrayBinary(StringInfo buf, int nitems,
+ FmgrInfo *receiveproc, Oid typioparam, int32 typmod,
+ int typlen, bool typbyval, char typalign,
+ Datum *values, bool *nulls,
+ bool *hasnulls, int32 *nbytes);
+static void CopyArrayEls(ArrayType *array,
+ Datum *values, bool *nulls, int nitems,
+ int typlen, bool typbyval, char typalign,
+ bool freedata);
+static int ArrayCastAndSet(Datum src,
+ int typlen, bool typbyval, char typalign,
+ char *dest);
+
+/*
+ * recv function for use-defined type dbms_stats.anyarray. Receive string
+ * representation of anyarray object, and convert it into binary data.
+ */
+Datum
+dbms_stats_array_recv(PG_FUNCTION_ARGS)
+{
+ StringInfo buf = (StringInfo) PG_GETARG_POINTER(0);
+ Oid element_type;
+ int typlen;
+ bool typbyval;
+ char typalign;
+ Oid typioparam;
+ int i,
+ nitems;
+ Datum *dataPtr;
+ bool *nullsPtr;
+ bool hasnulls;
+ int32 nbytes;
+ int32 dataoffset;
+ ArrayType *retval;
+ int ndim,
+ flags,
+ dim[MAXDIM],
+ lBound[MAXDIM];
+ ArrayMetaState *my_extra;
+
+ /* Get the array header information */
+ ndim = pq_getmsgint(buf, 4);
+ if (ndim < 0) /* we do allow zero-dimension arrays */
+ ereport(ERROR,
+ (errcode(ERRCODE_INVALID_BINARY_REPRESENTATION),
+ errmsg("invalid number of dimensions: %d", ndim)));
+ if (ndim > MAXDIM)
+ ereport(ERROR,
+ (errcode(ERRCODE_PROGRAM_LIMIT_EXCEEDED),
+ errmsg("number of array dimensions (%d) exceeds the maximum allowed (%d)",
+ ndim, MAXDIM)));
+
+ flags = pq_getmsgint(buf, 4);
+ if (flags != 0 && flags != 1)
+ ereport(ERROR,
+ (errcode(ERRCODE_INVALID_BINARY_REPRESENTATION),
+ errmsg("invalid array flags")));
+
+ element_type = pq_getmsgint(buf, sizeof(Oid));
+
+ for (i = 0; i < ndim; i++)
+ {
+ int ub;
+
+ dim[i] = pq_getmsgint(buf, 4);
+ lBound[i] = pq_getmsgint(buf, 4);
+
+ ub = lBound[i] + dim[i] - 1;
+ /* overflow? */
+ if (lBound[i] > ub)
+ ereport(ERROR,
+ (errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
+ errmsg("integer out of range")));
+ }
+
+ /* This checks for overflow of array dimensions */
+ nitems = ArrayGetNItems(ndim, dim);
+
+ /*
+ * We arrange to look up info about element type, including its receive
+ * conversion proc, only once per series of calls, assuming the element
+ * type doesn't change underneath us.
+ */
+ my_extra = (ArrayMetaState *) fcinfo->flinfo->fn_extra;
+ if (my_extra == NULL)
+ {
+ fcinfo->flinfo->fn_extra = MemoryContextAlloc(fcinfo->flinfo->fn_mcxt,
+ sizeof(ArrayMetaState));
+ my_extra = (ArrayMetaState *) fcinfo->flinfo->fn_extra;
+ my_extra->element_type = ~element_type;
+ }
+
+ if (my_extra->element_type != element_type)
+ {
+ /* Get info about element type, including its receive proc */
+ get_type_io_data(element_type, IOFunc_receive,
+ &my_extra->typlen, &my_extra->typbyval,
+ &my_extra->typalign, &my_extra->typdelim,
+ &my_extra->typioparam, &my_extra->typiofunc);
+ if (!OidIsValid(my_extra->typiofunc))
+ ereport(ERROR,
+ (errcode(ERRCODE_UNDEFINED_FUNCTION),
+ errmsg("no binary input function available for type \"%s\"",
+ format_type_be(element_type))));
+ fmgr_info_cxt(my_extra->typiofunc, &my_extra->proc,
+ fcinfo->flinfo->fn_mcxt);
+ my_extra->element_type = element_type;
+ }
+
+ if (nitems == 0)
+ {
+ /* Return empty array ... but not till we've validated element_type */
+ PG_RETURN_ARRAYTYPE_P(construct_empty_array(element_type));
+ }
+
+ typlen = my_extra->typlen;
+ typbyval = my_extra->typbyval;
+ typalign = my_extra->typalign;
+ typioparam = my_extra->typioparam;
+
+ dataPtr = (Datum *) palloc(nitems * sizeof(Datum));
+ nullsPtr = (bool *) palloc(nitems * sizeof(bool));
+ ReadArrayBinary(buf, nitems,
+ &my_extra->proc, typioparam, 0,
+ typlen, typbyval, typalign,
+ dataPtr, nullsPtr,
+ &hasnulls, &nbytes);
+ if (hasnulls)
+ {
+ dataoffset = ARR_OVERHEAD_WITHNULLS(ndim, nitems);
+ nbytes += dataoffset;
+ }
+ else
+ {
+ dataoffset = 0; /* marker for no null bitmap */
+ nbytes += ARR_OVERHEAD_NONULLS(ndim);
+ }
+ retval = (ArrayType *) palloc(nbytes);
+ SET_VARSIZE(retval, nbytes);
+ retval->ndim = ndim;
+ retval->dataoffset = dataoffset;
+ retval->elemtype = element_type;
+ memcpy(ARR_DIMS(retval), dim, ndim * sizeof(int));
+ memcpy(ARR_LBOUND(retval), lBound, ndim * sizeof(int));
+
+ CopyArrayEls(retval,
+ dataPtr, nullsPtr, nitems,
+ typlen, typbyval, typalign,
+ true);
+
+ pfree(dataPtr);
+ pfree(nullsPtr);
+
+ PG_RETURN_ARRAYTYPE_P(retval);
+}
+
+static void
+ReadArrayBinary(StringInfo buf,
+ int nitems,
+ FmgrInfo *receiveproc,
+ Oid typioparam,
+ int32 typmod,
+ int typlen,
+ bool typbyval,
+ char typalign,
+ Datum *values,
+ bool *nulls,
+ bool *hasnulls,
+ int32 *nbytes)
+{
+ int i;
+ bool hasnull;
+ int32 totbytes;
+
+ for (i = 0; i < nitems; i++)
+ {
+ int itemlen;
+ StringInfoData elem_buf;
+ char csave;
+
+ /* Get and check the item length */
+ itemlen = pq_getmsgint(buf, 4);
+ if (itemlen < -1 || itemlen > (buf->len - buf->cursor))
+ ereport(ERROR,
+ (errcode(ERRCODE_INVALID_BINARY_REPRESENTATION),
+ errmsg("insufficient data left in message")));
+
+ if (itemlen == -1)
+ {
+ /* -1 length means NULL */
+ values[i] = ReceiveFunctionCall(receiveproc, NULL,
+ typioparam, typmod);
+ nulls[i] = true;
+ continue;
+ }
+
+ /*
+ * Rather than copying data around, we just set up a phony StringInfo
+ * pointing to the correct portion of the input buffer. We assume we
+ * can scribble on the input buffer so as to maintain the convention
+ * that StringInfos have a trailing null.
+ */
+ elem_buf.data = &buf->data[buf->cursor];
+ elem_buf.maxlen = itemlen + 1;
+ elem_buf.len = itemlen;
+ elem_buf.cursor = 0;
+
+ buf->cursor += itemlen;
+
+ csave = buf->data[buf->cursor];
+ buf->data[buf->cursor] = '\0';
+
+ /* Now call the element's receiveproc */
+ values[i] = ReceiveFunctionCall(receiveproc, &elem_buf,
+ typioparam, typmod);
+ nulls[i] = false;
+
+ /* Trouble if it didn't eat the whole buffer */
+ if (elem_buf.cursor != itemlen)
+ ereport(ERROR,
+ (errcode(ERRCODE_INVALID_BINARY_REPRESENTATION),
+ errmsg("improper binary format in array element %d",
+ i + 1)));
+
+ buf->data[buf->cursor] = csave;
+ }
+
+ /*
+ * Check for nulls, compute total data space needed
+ */
+ hasnull = false;
+ totbytes = 0;
+ for (i = 0; i < nitems; i++)
+ {
+ if (nulls[i])
+ hasnull = true;
+ else
+ {
+ /* let's just make sure data is not toasted */
+ if (typlen == -1)
+ values[i] = PointerGetDatum(PG_DETOAST_DATUM(values[i]));
+ totbytes = att_addlength_datum(totbytes, typlen, values[i]);
+ totbytes = att_align_nominal(totbytes, typalign);
+ /* check for overflow of total request */
+ if (!AllocSizeIsValid(totbytes))
+ ereport(ERROR,
+ (errcode(ERRCODE_PROGRAM_LIMIT_EXCEEDED),
+ errmsg("array size exceeds the maximum allowed (%d)",
+ (int) MaxAllocSize)));
+ }
+ }
+ *hasnulls = hasnull;
+ *nbytes = totbytes;
+}
+
+static void
+CopyArrayEls(ArrayType *array,
+ Datum *values,
+ bool *nulls,
+ int nitems,
+ int typlen,
+ bool typbyval,
+ char typalign,
+ bool freedata)
+{
+ char *p = ARR_DATA_PTR(array);
+ bits8 *bitmap = ARR_NULLBITMAP(array);
+ int bitval = 0;
+ int bitmask = 1;
+ int i;
+
+ if (typbyval)
+ freedata = false;
+
+ for (i = 0; i < nitems; i++)
+ {
+ if (nulls && nulls[i])
+ {
+ if (!bitmap) /* shouldn't happen */
+ elog(ERROR, "null array element where not supported");
+ /* bitmap bit stays 0 */
+ }
+ else
+ {
+ bitval |= bitmask;
+ p += ArrayCastAndSet(values[i], typlen, typbyval, typalign, p);
+ if (freedata)
+ pfree(DatumGetPointer(values[i]));
+ }
+ if (bitmap)
+ {
+ bitmask <<= 1;
+ if (bitmask == 0x100)
+ {
+ *bitmap++ = bitval;
+ bitval = 0;
+ bitmask = 1;
+ }
+ }
+ }
+
+ if (bitmap && bitmask != 1)
+ *bitmap = bitval;
+}
+
+static int
+ArrayCastAndSet(Datum src,
+ int typlen,
+ bool typbyval,
+ char typalign,
+ char *dest)
+{
+ int inc;
+
+ if (typlen > 0)
+ {
+ if (typbyval)
+ store_att_byval(dest, src, typlen);
+ else
+ memmove(dest, DatumGetPointer(src), typlen);
+ inc = att_align_nominal(typlen, typalign);
+ }
+ else
+ {
+ Assert(!typbyval);
+ inc = att_addlength_datum(0, typlen, src);
+ memmove(dest, DatumGetPointer(src), inc);
+ inc = att_align_nominal(inc, typalign);
+ }
+
+ return inc;
+}
+
+#ifdef UNIT_TEST
+void test_dump(int *passed, int *total);
+/*
+ * Unit test entry point for dump.c. This will be called by PG_init()
+ * function, after initialization for this extension is completed .
+ * This funciton should add the numbers of tests passed and the total number of
+ * tests to parameter passed and total respectively.
+ */
+void
+test_dump(int *passed, int *total)
+{
+ int local_passed = 0;
+ int local_total = 0;
+
+ elog(WARNING, "==========");
+
+ /* Do tests here */
+
+ elog(WARNING, "%s %d/%d passed", __FUNCTION__, local_passed, local_total);
+ *passed += local_passed;
+ *total += local_total;
+}
+#endif
--- /dev/null
+/ut_anyarray-*.out
+/ut_imp_exp-*.out
--- /dev/null
+CREATE VIEW plain_relations_statistic_v AS
+SELECT oid::regclass,
+ relpages,
+ reltuples,
+ pg_relation_size(oid) / 8192 curpages
+ FROM pg_class
+ ORDER BY oid::regclass::text;
+CREATE VIEW relations_locked_v AS
+SELECT relid::regclass,
+ relname,
+ relpages,
+ reltuples,
+ curpages
+ FROM dbms_stats._relation_stats_locked
+ ORDER BY relid;
+CREATE VIEW relations_backup_v AS
+SELECT id,
+ relid::regclass,
+ relname,
+ relpages,
+ reltuples,
+ curpages
+ FROM dbms_stats.relation_stats_backup
+ ORDER BY id, relid;
+CREATE VIEW plain_columns_statistic_v AS
+SELECT starelid::regclass, staattnum, stainherit,
+ stanullfrac, stawidth, stadistinct,
+ stakind1, stakind2, stakind3, stakind4,
+ staop1, staop2, staop3, staop4,
+ stanumbers1, stanumbers2, stanumbers3, stanumbers4,
+ stavalues1::text, stavalues2::text, stavalues3::text, stavalues4::text
+ FROM pg_statistic
+ ORDER BY starelid, staattnum, stainherit;
+CREATE VIEW columns_locked_v AS
+SELECT starelid::regclass, staattnum, attname, stainherit,
+ stanullfrac, stawidth, stadistinct,
+ stakind1, stakind2, stakind3, stakind4,
+ staop1, staop2, staop3, staop4,
+ stanumbers1, stanumbers2, stanumbers3, stanumbers4,
+ stavalues1, stavalues2, stavalues3, stavalues4
+ FROM dbms_stats._column_stats_locked c
+ JOIN pg_attribute a
+ ON (c.starelid = a.attrelid AND c.staattnum = a.attnum)
+ ORDER BY starelid, staattnum, stainherit;
+CREATE VIEW columns_backup_v AS
+SELECT id, statypid,
+ starelid::regclass, staattnum, stainherit,
+ stanullfrac, stawidth, stadistinct,
+ stakind1, stakind2, stakind3, stakind4,
+ staop1, staop2, staop3, staop4,
+ stanumbers1, stanumbers2, stanumbers3, stanumbers4,
+ stavalues1, stavalues2, stavalues3, stavalues4
+ FROM dbms_stats.column_stats_backup
+ ORDER BY id, starelid, staattnum, stainherit;
+CREATE TABLE dbms_stats.work (
+ nspname name NOT NULL,
+ relname name NOT NULL,
+ relpages int4 NOT NULL,
+ reltuples float4 NOT NULL,
+ curpages int4 NOT NULL,
+ last_analyze timestamp with time zone,
+ last_autoanalyze timestamp with time zone,
+ attname name,
+ nspname_of_typename name,
+ typname name,
+ atttypmod int4,
+ stainherit bool,
+ stanullfrac float4,
+ stawidth int4,
+ stadistinct float4,
+ stakind1 int2,
+ stakind2 int2,
+ stakind3 int2,
+ stakind4 int2,
+ staop1 oid,
+ staop2 oid,
+ staop3 oid,
+ staop4 oid,
+ stanumbers1 float4[],
+ stanumbers2 float4[],
+ stanumbers3 float4[],
+ stanumbers4 float4[],
+ stavalues1 dbms_stats.anyarray,
+ stavalues2 dbms_stats.anyarray,
+ stavalues3 dbms_stats.anyarray,
+ stavalues4 dbms_stats.anyarray
+);
+CREATE VIEW work_v AS
+SELECT nspname, relname, relpages, reltuples,
+ curpages, attname, nspname_of_typename, typname, atttypmod,
+ stainherit, stanullfrac, stawidth, stadistinct,
+ stakind1, stakind2, stakind3, stakind4,
+ staop1, staop2, staop3, staop4,
+ stanumbers1, stanumbers2, stanumbers3, stanumbers4,
+ stavalues1, stavalues2, stavalues3, stavalues4
+ FROM dbms_stats.work
+ ORDER BY nspname, relname, attname, stainherit;
--- /dev/null
+CREATE VIEW plain_relations_statistic_v AS
+SELECT oid::regclass,
+ relpages,
+ reltuples,
+ relallvisible,
+ pg_relation_size(oid) / 8192 curpages
+ FROM pg_class
+ ORDER BY oid::regclass::text;
+CREATE VIEW relations_locked_v AS
+SELECT relid::regclass,
+ relname,
+ relpages,
+ reltuples,
+ relallvisible,
+ curpages
+ FROM dbms_stats._relation_stats_locked
+ ORDER BY relid;
+CREATE VIEW relations_backup_v AS
+SELECT id,
+ relid::regclass,
+ relname,
+ relpages,
+ reltuples,
+ relallvisible,
+ curpages
+ FROM dbms_stats.relation_stats_backup
+ ORDER BY id, relid;
+CREATE VIEW plain_columns_statistic_v AS
+SELECT starelid::regclass, staattnum, stainherit,
+ stanullfrac, stawidth, stadistinct,
+ stakind1, stakind2, stakind3, stakind4, stakind5,
+ staop1, staop2, staop3, staop4, staop5,
+ stanumbers1, stanumbers2, stanumbers3, stanumbers4, stanumbers5,
+ stavalues1::text, stavalues2::text, stavalues3::text, stavalues4::text, stavalues5::text
+ FROM pg_statistic
+ ORDER BY starelid, staattnum, stainherit;
+CREATE VIEW columns_locked_v AS
+SELECT starelid::regclass, staattnum, attname, stainherit,
+ stanullfrac, stawidth, stadistinct,
+ stakind1, stakind2, stakind3, stakind4, stakind5,
+ staop1, staop2, staop3, staop4, staop5,
+ stanumbers1, stanumbers2, stanumbers3, stanumbers4, stanumbers5,
+ stavalues1, stavalues2, stavalues3, stavalues4, stavalues5
+ FROM dbms_stats._column_stats_locked c
+ JOIN pg_attribute a
+ ON (c.starelid = a.attrelid AND c.staattnum = a.attnum)
+ ORDER BY starelid, staattnum, stainherit;
+CREATE VIEW columns_backup_v AS
+SELECT id, statypid,
+ starelid::regclass, staattnum, stainherit,
+ stanullfrac, stawidth, stadistinct,
+ stakind1, stakind2, stakind3, stakind4, stakind5,
+ staop1, staop2, staop3, staop4, staop5,
+ stanumbers1, stanumbers2, stanumbers3, stanumbers4, stanumbers5,
+ stavalues1, stavalues2, stavalues3, stavalues4, stavalues5
+ FROM dbms_stats.column_stats_backup
+ ORDER BY id, starelid, staattnum, stainherit;
+CREATE TABLE dbms_stats.work (
+ nspname name NOT NULL,
+ relname name NOT NULL,
+ relpages int4 NOT NULL,
+ reltuples float4 NOT NULL,
+ relallvisible int4 NOT NULL,
+ curpages int4 NOT NULL,
+ last_analyze timestamp with time zone,
+ last_autoanalyze timestamp with time zone,
+ attname name,
+ nspname_of_typename name,
+ typname name,
+ atttypmod int4,
+ stainherit bool,
+ stanullfrac float4,
+ stawidth int4,
+ stadistinct float4,
+ stakind1 int2,
+ stakind2 int2,
+ stakind3 int2,
+ stakind4 int2,
+ stakind5 int2,
+ staop1 oid,
+ staop2 oid,
+ staop3 oid,
+ staop4 oid,
+ staop5 oid,
+ stanumbers1 float4[],
+ stanumbers2 float4[],
+ stanumbers3 float4[],
+ stanumbers4 float4[],
+ stanumbers5 float4[],
+ stavalues1 dbms_stats.anyarray,
+ stavalues2 dbms_stats.anyarray,
+ stavalues3 dbms_stats.anyarray,
+ stavalues4 dbms_stats.anyarray
+ ,stavalues5 dbms_stats.anyarray
+);
+CREATE VIEW work_v AS
+SELECT nspname, relname, relpages, reltuples, relallvisible,
+ curpages, attname, nspname_of_typename, typname, atttypmod,
+ stainherit, stanullfrac, stawidth, stadistinct,
+ stakind1, stakind2, stakind3, stakind4, stakind5,
+ staop1, staop2, staop3, staop4, staop5,
+ stanumbers1, stanumbers2, stanumbers3, stanumbers4, stanumbers5,
+ stavalues1, stavalues2, stavalues3, stavalues4, stavalues5
+ FROM dbms_stats.work
+ ORDER BY nspname, relname, attname, stainherit;
--- /dev/null
+/*
+ * No.1-1 CREATE EXTENSION
+ */
+-- No.1-1-1
+CREATE EXTENSION pg_dbms_stats;
+-- No.1-1-2
+DROP EXTENSION pg_dbms_stats;
+CREATE EXTENSION pg_dbms_stats;
+-- create no superuser and superuser
+SET client_min_messages = warning;
+DROP ROLE IF EXISTS regular_user;
+CREATE ROLE regular_user LOGIN;
+SET client_min_messages = fatal;
+CREATE ROLE postgres SUPERUSER CREATEDB CREATEROLE INHERIT LOGIN;
+-- create object
+CREATE TABLE pt0(id integer, day date);
+CREATE INDEX pt0_idx ON pt0(id);
+CREATE TABLE st0(id integer, name char(5));
+CREATE INDEX st0_idx ON st0(id);
+CREATE TABLE st1(val integer, str text);
+CREATE SCHEMA s0;
+CREATE TABLE s0.st0(id integer, num integer);
+CREATE INDEX st0_idx ON s0.st0(id);
+CREATE TABLE s0.st1() INHERITS(s0.st0);
+CREATE INDEX st1_idx ON s0.st1(id);
+CREATE TABLE s0.st2(id integer, txt text);
+CREATE INDEX st2_idx ON s0.st2(id);
+CREATE VIEW sv0 AS
+ SELECT st0.id, st0.num, st2.txt
+ FROM s0.st0 st0, s0.st2 st2
+ WHERE st0.id = st2.id;
+CREATE TYPE s0.sc0 AS (num integer, txt text);
+CREATE FOREIGN DATA WRAPPER test_wrapper;
+CREATE SERVER test_server
+ FOREIGN DATA WRAPPER test_wrapper;
+CREATE FOREIGN TABLE s0.sft0(id integer)
+ SERVER test_server;
+CREATE SEQUENCE s0.ss0 START 1;
+CREATE SCHEMA s1;
+CREATE TABLE s1.st0(id integer, num integer);
+CREATE SCHEMA s2;
+GRANT USAGE ON SCHEMA s0 TO regular_user;
+GRANT SELECT ON TABLE s0.st2 TO regular_user;
+CREATE TYPE complex AS (
+ r double precision,
+ i double precision
+);
+CREATE FUNCTION inform(VARIADIC arr text[]) RETURNS int AS $$
+DECLARE
+ str text := 'arguments are ';
+ count int;
+BEGIN
+ FOR count IN SELECT i FROM generate_subscripts($1, 1) g(i) LOOP
+ IF count != 1 THEN
+ str := str || ', ';
+ END IF;
+ IF $1[count] IS NULL THEN
+ str := str || '<NULL>';
+ ELSE
+ str := str || $1[count];
+ END IF;
+ END LOOP;
+ RAISE NOTICE '%', str;
+ RETURN 1;
+END;
+$$LANGUAGE plpgsql;
+CREATE VIEW lockd_io AS
+ SELECT relname, heap_blks_read hbr, heap_blks_hit hbh,
+ idx_blks_read ibr, idx_blks_hit ibh
+ FROM pg_statio_user_tables
+ WHERE schemaname = 'dbms_stats'
+ AND relname LIKE '%stats_locked'
+ ORDER BY relid;
+-- load data
+INSERT INTO st0 VALUES (1, 'test'), (2, 'test');
+INSERT INTO st1 SELECT i % 3, i % 3 FROM generate_series(1, 10000) t(i);
+INSERT INTO s0.st0 VALUES (1, 10), (2, 20);
+INSERT INTO s0.st1 VALUES (4, 40), (5, 50), (6, 60);
+INSERT INTO s0.st2 VALUES (1, '1'), (2, 'test'), (3, 'comment');
+INSERT INTO s1.st0 VALUES (1, 15), (2, 25), (3, 35), (4, 45);
+CREATE INDEX st1_idx ON st1 (val);
+CREATE INDEX st1_exp ON st1 (lower(str));
+VACUUM ANALYZE;
--- /dev/null
+\pset null '(null)'
+/*
+ * No.2-1 table definitions.
+ */
+-- No.2-1-1
+\d dbms_stats.backup_history
+ Table "dbms_stats.backup_history"
+ Column | Type | Modifiers
+---------+--------------------------+------------------------------------------------------------------------
+ id | bigint | not null default nextval('dbms_stats.backup_history_id_seq'::regclass)
+ time | timestamp with time zone | not null
+ unit | character(1) | not null
+ comment | text |
+Indexes:
+ "backup_history_pkey" PRIMARY KEY, btree (id)
+Referenced by:
+ TABLE "dbms_stats.column_stats_backup" CONSTRAINT "column_stats_backup_id_fkey" FOREIGN KEY (id) REFERENCES dbms_stats.backup_history(id) ON DELETE CASCADE
+ TABLE "dbms_stats.relation_stats_backup" CONSTRAINT "relation_stats_backup_id_fkey" FOREIGN KEY (id) REFERENCES dbms_stats.backup_history(id) ON DELETE CASCADE
+
+-- No.2-1-2
+\d dbms_stats.column_stats_backup
+ Table "dbms_stats.column_stats_backup"
+ Column | Type | Modifiers
+-------------+---------------------+-----------
+ id | bigint | not null
+ statypid | oid | not null
+ starelid | oid | not null
+ staattnum | smallint | not null
+ stainherit | boolean | not null
+ stanullfrac | real | not null
+ stawidth | integer | not null
+ stadistinct | real | not null
+ stakind1 | smallint | not null
+ stakind2 | smallint | not null
+ stakind3 | smallint | not null
+ stakind4 | smallint | not null
+ staop1 | oid | not null
+ staop2 | oid | not null
+ staop3 | oid | not null
+ staop4 | oid | not null
+ stanumbers1 | real[] |
+ stanumbers2 | real[] |
+ stanumbers3 | real[] |
+ stanumbers4 | real[] |
+ stavalues1 | dbms_stats.anyarray |
+ stavalues2 | dbms_stats.anyarray |
+ stavalues3 | dbms_stats.anyarray |
+ stavalues4 | dbms_stats.anyarray |
+Indexes:
+ "column_stats_backup_pkey" PRIMARY KEY, btree (id, starelid, staattnum, stainherit)
+Foreign-key constraints:
+ "column_stats_backup_id_fkey" FOREIGN KEY (id) REFERENCES dbms_stats.backup_history(id) ON DELETE CASCADE
+ "column_stats_backup_id_fkey1" FOREIGN KEY (id, starelid) REFERENCES dbms_stats.relation_stats_backup(id, relid) ON DELETE CASCADE
+
+-- No.2-1-3
+\d dbms_stats._column_stats_locked
+ Table "dbms_stats._column_stats_locked"
+ Column | Type | Modifiers
+-------------+---------------------+-----------
+ starelid | oid | not null
+ staattnum | smallint | not null
+ stainherit | boolean | not null
+ stanullfrac | real |
+ stawidth | integer |
+ stadistinct | real |
+ stakind1 | smallint |
+ stakind2 | smallint |
+ stakind3 | smallint |
+ stakind4 | smallint |
+ staop1 | oid |
+ staop2 | oid |
+ staop3 | oid |
+ staop4 | oid |
+ stanumbers1 | real[] |
+ stanumbers2 | real[] |
+ stanumbers3 | real[] |
+ stanumbers4 | real[] |
+ stavalues1 | dbms_stats.anyarray |
+ stavalues2 | dbms_stats.anyarray |
+ stavalues3 | dbms_stats.anyarray |
+ stavalues4 | dbms_stats.anyarray |
+Indexes:
+ "_column_stats_locked_pkey" PRIMARY KEY, btree (starelid, staattnum, stainherit)
+Foreign-key constraints:
+ "_column_stats_locked_starelid_fkey" FOREIGN KEY (starelid) REFERENCES dbms_stats._relation_stats_locked(relid) ON DELETE CASCADE
+Triggers:
+ invalidate_column_cache BEFORE INSERT OR DELETE OR UPDATE ON dbms_stats._column_stats_locked FOR EACH ROW EXECUTE PROCEDURE dbms_stats.invalidate_column_cache()
+
+-- No.2-1-4
+\d dbms_stats.relation_stats_backup
+ Table "dbms_stats.relation_stats_backup"
+ Column | Type | Modifiers
+------------------+--------------------------+-----------
+ id | bigint | not null
+ relid | oid | not null
+ relname | text | not null
+ relpages | integer | not null
+ reltuples | real | not null
+ curpages | integer | not null
+ last_analyze | timestamp with time zone |
+ last_autoanalyze | timestamp with time zone |
+Indexes:
+ "relation_stats_backup_pkey" PRIMARY KEY, btree (id, relid)
+Foreign-key constraints:
+ "relation_stats_backup_id_fkey" FOREIGN KEY (id) REFERENCES dbms_stats.backup_history(id) ON DELETE CASCADE
+Referenced by:
+ TABLE "dbms_stats.column_stats_backup" CONSTRAINT "column_stats_backup_id_fkey1" FOREIGN KEY (id, starelid) REFERENCES dbms_stats.relation_stats_backup(id, relid) ON DELETE CASCADE
+
+-- No.2-1-5
+\d dbms_stats._relation_stats_locked
+ Table "dbms_stats._relation_stats_locked"
+ Column | Type | Modifiers
+------------------+--------------------------+-----------
+ relid | oid | not null
+ relname | text | not null
+ relpages | integer |
+ reltuples | real |
+ curpages | integer |
+ last_analyze | timestamp with time zone |
+ last_autoanalyze | timestamp with time zone |
+Indexes:
+ "_relation_stats_locked_pkey" PRIMARY KEY, btree (relid)
+Referenced by:
+ TABLE "dbms_stats._column_stats_locked" CONSTRAINT "_column_stats_locked_starelid_fkey" FOREIGN KEY (starelid) REFERENCES dbms_stats._relation_stats_locked(relid) ON DELETE CASCADE
+Triggers:
+ invalidate_relation_cache BEFORE INSERT OR DELETE OR UPDATE ON dbms_stats._relation_stats_locked FOR EACH ROW EXECUTE PROCEDURE dbms_stats.invalidate_relation_cache()
+
+/*
+ * No.2-2 view definitions.
+ */
+-- No.2-2-1
+\dS+ dbms_stats.column_stats_effective
+ View "dbms_stats.column_stats_effective"
+ Column | Type | Modifiers | Storage | Description
+-------------+---------------------+-----------+----------+-------------
+ starelid | oid | | plain |
+ staattnum | smallint | | plain |
+ stainherit | boolean | | plain |
+ stanullfrac | real | | plain |
+ stawidth | integer | | plain |
+ stadistinct | real | | plain |
+ stakind1 | smallint | | plain |
+ stakind2 | smallint | | plain |
+ stakind3 | smallint | | plain |
+ stakind4 | smallint | | plain |
+ staop1 | oid | | plain |
+ staop2 | oid | | plain |
+ staop3 | oid | | plain |
+ staop4 | oid | | plain |
+ stanumbers1 | real[] | | extended |
+ stanumbers2 | real[] | | extended |
+ stanumbers3 | real[] | | extended |
+ stanumbers4 | real[] | | extended |
+ stavalues1 | dbms_stats.anyarray | | extended |
+ stavalues2 | dbms_stats.anyarray | | extended |
+ stavalues3 | dbms_stats.anyarray | | extended |
+ stavalues4 | dbms_stats.anyarray | | extended |
+View definition:
+ SELECT m.starelid, m.staattnum, m.stainherit, m.stanullfrac, m.stawidth, m.stadistinct, m.stakind1, m.stakind2, m.stakind3, m.stakind4, m.staop1, m.staop2, m.staop3, m.staop4, m.stanumbers1, m.stanumbers2, m.stanumbers3, m.stanumbers4, m.stavalues1, m.stavalues2, m.stavalues3, m.stavalues4
+ FROM ( SELECT (dbms_stats.merge(v.*, s.*)).starelid AS starelid, (dbms_stats.merge(v.*, s.*)).staattnum AS staattnum, (dbms_stats.merge(v.*, s.*)).stainherit AS stainherit, (dbms_stats.merge(v.*, s.*)).stanullfrac AS stanullfrac, (dbms_stats.merge(v.*, s.*)).stawidth AS stawidth, (dbms_stats.merge(v.*, s.*)).stadistinct AS stadistinct, (dbms_stats.merge(v.*, s.*)).stakind1 AS stakind1, (dbms_stats.merge(v.*, s.*)).stakind2 AS stakind2, (dbms_stats.merge(v.*, s.*)).stakind3 AS stakind3, (dbms_stats.merge(v.*, s.*)).stakind4 AS stakind4, (dbms_stats.merge(v.*, s.*)).staop1 AS staop1, (dbms_stats.merge(v.*, s.*)).staop2 AS staop2, (dbms_stats.merge(v.*, s.*)).staop3 AS staop3, (dbms_stats.merge(v.*, s.*)).staop4 AS staop4, (dbms_stats.merge(v.*, s.*)).stanumbers1 AS stanumbers1, (dbms_stats.merge(v.*, s.*)).stanumbers2 AS stanumbers2, (dbms_stats.merge(v.*, s.*)).stanumbers3 AS stanumbers3, (dbms_stats.merge(v.*, s.*)).stanumbers4 AS stanumbers4, (dbms_stats.merge(v.*, s.*)).stavalues1 AS stavalues1, (dbms_stats.merge(v.*, s.*)).stavalues2 AS stavalues2, (dbms_stats.merge(v.*, s.*)).stavalues3 AS stavalues3, (dbms_stats.merge(v.*, s.*)).stavalues4 AS stavalues4
+ FROM pg_statistic s
+ FULL JOIN dbms_stats._column_stats_locked v USING (starelid, staattnum, stainherit)
+ WHERE NOT dbms_stats.is_system_catalog(starelid::regclass)) m
+ WHERE m.starelid IS NOT NULL;
+
+-- No.2-2-2
+\dS+ dbms_stats.relation_stats_effective
+ View "dbms_stats.relation_stats_effective"
+ Column | Type | Modifiers | Storage | Description
+------------------+--------------------------+-----------+----------+-------------
+ relid | oid | | plain |
+ relname | text | | extended |
+ relpages | integer | | plain |
+ reltuples | real | | plain |
+ curpages | integer | | plain |
+ last_analyze | timestamp with time zone | | plain |
+ last_autoanalyze | timestamp with time zone | | plain |
+View definition:
+ SELECT c.oid AS relid, dbms_stats.relname(n.nspname::text, c.relname::text) AS relname, COALESCE(v.relpages, c.relpages) AS relpages, COALESCE(v.reltuples, c.reltuples) AS reltuples, COALESCE(v.curpages, (pg_relation_size(c.oid::regclass) / current_setting('block_size'::text)::integer)::integer) AS curpages, COALESCE(v.last_analyze, pg_stat_get_last_analyze_time(c.oid)) AS last_analyze, COALESCE(v.last_autoanalyze, pg_stat_get_last_autoanalyze_time(c.oid)) AS last_autoanalyze
+ FROM pg_class c
+ JOIN pg_namespace n ON c.relnamespace = n.oid
+ LEFT JOIN dbms_stats._relation_stats_locked v ON v.relid = c.oid
+ WHERE dbms_stats.is_target_relkind(c.relkind) AND NOT dbms_stats.is_system_schema(n.nspname::text);
+
+-- No.2-2-3
+\dS+ dbms_stats.stats
+ View "dbms_stats.stats"
+ Column | Type | Modifiers | Storage | Description
+-------------------+---------------------+-----------+----------+-------------
+ schemaname | name | | plain |
+ tablename | name | | plain |
+ attname | name | | plain |
+ inherited | boolean | | plain |
+ null_frac | real | | plain |
+ avg_width | integer | | plain |
+ n_distinct | real | | plain |
+ most_common_vals | dbms_stats.anyarray | | extended |
+ most_common_freqs | real[] | | extended |
+ histogram_bounds | dbms_stats.anyarray | | extended |
+ correlation | real | | plain |
+View definition:
+ SELECT n.nspname AS schemaname, c.relname AS tablename, a.attname, s.stainherit AS inherited, s.stanullfrac AS null_frac, s.stawidth AS avg_width, s.stadistinct AS n_distinct,
+ CASE
+ WHEN s.stakind1 = ANY (ARRAY[1, 4]) THEN s.stavalues1
+ WHEN s.stakind2 = ANY (ARRAY[1, 4]) THEN s.stavalues2
+ WHEN s.stakind3 = ANY (ARRAY[1, 4]) THEN s.stavalues3
+ WHEN s.stakind4 = ANY (ARRAY[1, 4]) THEN s.stavalues4
+ ELSE NULL::dbms_stats.anyarray
+ END AS most_common_vals,
+ CASE
+ WHEN s.stakind1 = ANY (ARRAY[1, 4]) THEN s.stanumbers1
+ WHEN s.stakind2 = ANY (ARRAY[1, 4]) THEN s.stanumbers2
+ WHEN s.stakind3 = ANY (ARRAY[1, 4]) THEN s.stanumbers3
+ WHEN s.stakind4 = ANY (ARRAY[1, 4]) THEN s.stanumbers4
+ ELSE NULL::real[]
+ END AS most_common_freqs,
+ CASE
+ WHEN s.stakind1 = 2 THEN s.stavalues1
+ WHEN s.stakind2 = 2 THEN s.stavalues2
+ WHEN s.stakind3 = 2 THEN s.stavalues3
+ WHEN s.stakind4 = 2 THEN s.stavalues4
+ ELSE NULL::dbms_stats.anyarray
+ END AS histogram_bounds,
+ CASE
+ WHEN s.stakind1 = 3 THEN s.stanumbers1[1]
+ WHEN s.stakind2 = 3 THEN s.stanumbers2[1]
+ WHEN s.stakind3 = 3 THEN s.stanumbers3[1]
+ WHEN s.stakind4 = 3 THEN s.stanumbers4[1]
+ ELSE NULL::real
+ END AS correlation
+ FROM dbms_stats.column_stats_effective s
+ JOIN pg_class c ON c.oid = s.starelid
+ JOIN pg_attribute a ON c.oid = a.attrelid AND a.attnum = s.staattnum
+ LEFT JOIN pg_namespace n ON n.oid = c.relnamespace
+ WHERE NOT a.attisdropped AND has_column_privilege(c.oid, a.attnum, 'select'::text);
+
+-- No.2-2-4
+\dS+ dbms_stats.column_stats_locked
+ View "dbms_stats.column_stats_locked"
+ Column | Type | Modifiers | Storage | Description
+-------------+---------------------+-----------+----------+-------------
+ starelid | oid | | plain |
+ staattnum | smallint | | plain |
+ stainherit | boolean | | plain |
+ stanullfrac | real | | plain |
+ stawidth | integer | | plain |
+ stadistinct | real | | plain |
+ stakind1 | smallint | | plain |
+ stakind2 | smallint | | plain |
+ stakind3 | smallint | | plain |
+ stakind4 | smallint | | plain |
+ staop1 | oid | | plain |
+ staop2 | oid | | plain |
+ staop3 | oid | | plain |
+ staop4 | oid | | plain |
+ stanumbers1 | real[] | | extended |
+ stanumbers2 | real[] | | extended |
+ stanumbers3 | real[] | | extended |
+ stanumbers4 | real[] | | extended |
+ stavalues1 | dbms_stats.anyarray | | extended |
+ stavalues2 | dbms_stats.anyarray | | extended |
+ stavalues3 | dbms_stats.anyarray | | extended |
+ stavalues4 | dbms_stats.anyarray | | extended |
+View definition:
+ SELECT _column_stats_locked.starelid, _column_stats_locked.staattnum, _column_stats_locked.stainherit, _column_stats_locked.stanullfrac, _column_stats_locked.stawidth, _column_stats_locked.stadistinct, _column_stats_locked.stakind1, _column_stats_locked.stakind2, _column_stats_locked.stakind3, _column_stats_locked.stakind4, _column_stats_locked.staop1, _column_stats_locked.staop2, _column_stats_locked.staop3, _column_stats_locked.staop4, _column_stats_locked.stanumbers1, _column_stats_locked.stanumbers2, _column_stats_locked.stanumbers3, _column_stats_locked.stanumbers4, _column_stats_locked.stavalues1, _column_stats_locked.stavalues2, _column_stats_locked.stavalues3, _column_stats_locked.stavalues4
+ FROM dbms_stats._column_stats_locked
+ WHERE has_column_privilege(_column_stats_locked.starelid, _column_stats_locked.staattnum, 'SELECT'::text);
+
+-- No.2-2-5
+\dS+ dbms_stats.relation_stats_locked
+ View "dbms_stats.relation_stats_locked"
+ Column | Type | Modifiers | Storage | Description
+------------------+--------------------------+-----------+----------+-------------
+ relid | oid | | plain |
+ relname | text | | extended |
+ relpages | integer | | plain |
+ reltuples | real | | plain |
+ curpages | integer | | plain |
+ last_analyze | timestamp with time zone | | plain |
+ last_autoanalyze | timestamp with time zone | | plain |
+View definition:
+ SELECT _relation_stats_locked.relid, _relation_stats_locked.relname, _relation_stats_locked.relpages, _relation_stats_locked.reltuples, _relation_stats_locked.curpages, _relation_stats_locked.last_analyze, _relation_stats_locked.last_autoanalyze
+ FROM dbms_stats._relation_stats_locked;
+
+/*
+ * No.5-1 dbms_stats.merge
+ */
+UPDATE pg_statistic SET
+ stanullfrac = staattnum,
+ stawidth = staattnum,
+ stadistinct = staattnum,
+ stakind1 = 4,
+ stakind2 = 1,
+ stakind3 = 2,
+ stakind4 = 3,
+ staop1 = 14,
+ staop2 = 11,
+ staop3 = 12,
+ staop4 = 13,
+ stanumbers1 = ARRAY[staattnum,4],
+ stanumbers2 = ARRAY[staattnum,1],
+ stanumbers3 = ARRAY[staattnum,2],
+ stanumbers4 = ARRAY[staattnum,3],
+ stavalues2 = array_cat(stavalues1,stavalues1),
+ stavalues3 = array_cat(array_cat(stavalues1,stavalues1),stavalues1),
+ stavalues4 = array_cat(array_cat(array_cat(stavalues1,stavalues1),stavalues1),stavalues1)
+ WHERE starelid = 'st0'::regclass;
+SELECT dbms_stats.lock_table_stats('st0');
+ lock_table_stats
+------------------
+ st0
+(1 row)
+
+UPDATE dbms_stats._column_stats_locked SET
+ stainherit = 't',
+ stanullfrac = -staattnum,
+ stawidth = -staattnum,
+ stadistinct = -staattnum,
+ stakind1 = 2,
+ stakind2 = 3,
+ stakind3 = 4,
+ stakind4 = 1,
+ staop1 = 22,
+ staop2 = 23,
+ staop3 = 24,
+ staop4 = 21,
+ stanumbers1 = ARRAY[-staattnum,22],
+ stanumbers2 = ARRAY[-staattnum,23],
+ stanumbers3 = ARRAY[-staattnum,24],
+ stanumbers4 = ARRAY[-staattnum,21],
+ stavalues1 = stavalues3,
+ stavalues2 = stavalues2,
+ stavalues3 = stavalues1,
+ stavalues4 = stavalues4
+;
+/*
+ * Driver function dbms_stats.merge1
+ */
+CREATE FUNCTION dbms_stats.merge1(
+ lhs dbms_stats._column_stats_locked,
+ rhs pg_catalog.pg_statistic
+) RETURNS integer AS
+'$libdir/pg_dbms_stats', 'dbms_stats_merge'
+LANGUAGE C STABLE;
+SELECT * FROM columns_locked_v
+ WHERE starelid = 'st0'::regclass;
+ starelid | staattnum | attname | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+----------+-----------+---------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+---------------------------+-------------------+------------+-----------------------------------
+ st0 | 1 | id | t | -1 | -1 | -1 | 2 | 3 | 4 | 1 | 22 | 23 | 24 | 21 | {-1,22} | {-1,23} | {-1,24} | {-1,21} | {1,2,1,2,1,2} | {1,2,1,2} | {1,2} | {1,2,1,2,1,2,1,2}
+ st0 | 2 | name | t | -2 | -2 | -2 | 2 | 3 | 4 | 1 | 22 | 23 | 24 | 21 | {-2,22} | {-2,23} | {-2,24} | {-2,21} | {"test ","test ","test "} | {"test ","test "} | {"test "} | {"test ","test ","test ","test "}
+(2 rows)
+
+SELECT * FROM plain_columns_statistic_v
+ WHERE starelid = 'st0'::regclass;
+ starelid | staattnum | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+----------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+------------+-------------------+---------------------------+-----------------------------------
+ st0 | 1 | f | 1 | 1 | 1 | 4 | 1 | 2 | 3 | 14 | 11 | 12 | 13 | {1,4} | {1,1} | {1,2} | {1,3} | {1,2} | {1,2,1,2} | {1,2,1,2,1,2} | {1,2,1,2,1,2,1,2}
+ st0 | 2 | f | 2 | 2 | 2 | 4 | 1 | 2 | 3 | 14 | 11 | 12 | 13 | {2,4} | {2,1} | {2,2} | {2,3} | {"test "} | {"test ","test "} | {"test ","test ","test "} | {"test ","test ","test ","test "}
+(2 rows)
+
+SET client_min_messages TO LOG;
+-- No.5-1-1
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ FROM (SELECT dbms_stats.merge(NULL, s)
+ FROM pg_statistic s
+ WHERE starelid = 'st0'::regclass
+ AND staattnum = '1'::int2) m;
+ starelid | staattnum | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+----------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+------------+------------+---------------+-------------------
+ st0 | 1 | f | 1 | 1 | 1 | 4 | 1 | 2 | 3 | 14 | 11 | 12 | 13 | {1,4} | {1,1} | {1,2} | {1,3} | {1,2} | {1,2,1,2} | {1,2,1,2,1,2} | {1,2,1,2,1,2,1,2}
+(1 row)
+
+-- No.5-1-2
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ FROM (SELECT dbms_stats.merge(v, NULL)
+ FROM dbms_stats._column_stats_locked v
+ WHERE starelid = 'st0'::regclass
+ AND staattnum = '2'::int2) m;
+ starelid | staattnum | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+----------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+---------------------------+-------------------+------------+-----------------------------------
+ st0 | 2 | t | -2 | -2 | -2 | 2 | 3 | 4 | 1 | 22 | 23 | 24 | 21 | {-2,22} | {-2,23} | {-2,24} | {-2,21} | {"test ","test ","test "} | {"test ","test "} | {"test "} | {"test ","test ","test ","test "}
+(1 row)
+
+-- No.5-1-3
+SELECT dbms_stats.merge(NULL, NULL);
+ merge
+--------
+ (null)
+(1 row)
+
+-- No.5-1-4
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ FROM (SELECT dbms_stats.merge(v, s)
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2) m;
+ starelid | staattnum | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+----------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+---------------------------+-------------------+------------+-----------------------------------
+ st0 | 2 | t | -2 | -2 | -2 | 2 | 3 | 4 | 1 | 22 | 23 | 24 | 21 | {-2,22} | {-2,23} | {-2,24} | {-2,21} | {"test ","test ","test "} | {"test ","test "} | {"test "} | {"test ","test ","test ","test "}
+(1 row)
+
+-- No.5-1-5
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ FROM (SELECT dbms_stats.merge(v, s)
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2) m;
+ starelid | staattnum | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+----------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+---------------------------+-------------------+------------+-----------------------------------
+ st0 | 2 | t | -2 | -2 | -2 | 2 | 3 | 4 | 1 | 22 | 23 | 24 | 21 | {-2,22} | {-2,23} | {-2,24} | {-2,21} | {"test ","test ","test "} | {"test ","test "} | {"test "} | {"test ","test ","test ","test "}
+(1 row)
+
+-- No.5-1-6
+SELECT dbms_stats.merge1(v, s)
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2;
+ERROR: return type must be a row type
+-- No.5-1-7
+SELECT dbms_stats.merge(NULL, (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ s.stakind1, s.stakind2, s.stakind3, s.stakind4,
+ s.staop1, s.staop2, s.staop3,
+ NULL, s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ))
+ FROM pg_statistic s
+ WHERE s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2;
+ merge
+--------
+ (null)
+(1 row)
+
+-- No.5-1-8
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ FROM (SELECT dbms_stats.merge(NULL, (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ s.stakind1, s.stakind2, s.stakind3, s.stakind4,
+ s.staop1, s.staop2, s.staop3, s.staop4,
+ NULL, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ))
+ FROM pg_statistic s
+ WHERE s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2) m;
+ starelid | staattnum | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+----------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+------------+------------+---------------+-------------------
+ st0 | 1 | f | 1 | 1 | 1 | 4 | 1 | 2 | 3 | 14 | 11 | 12 | 13 | (null) | {1,1} | {1,2} | {1,3} | {1,2} | {1,2,1,2} | {1,2,1,2,1,2} | {1,2,1,2,1,2,1,2}
+(1 row)
+
+-- No.5-1-9
+SELECT dbms_stats.merge((
+ v.starelid::regclass, v.staattnum, v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ v.stakind1, v.stakind2, v.stakind3, v.stakind4,
+ v.staop1, v.staop2, v.staop3,
+ NULL, v.stanumbers1, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ), NULL)
+ FROM dbms_stats._column_stats_locked v
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2;
+ merge
+--------
+ (null)
+(1 row)
+
+-- No.5-1-10
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ FROM (SELECT dbms_stats.merge((
+ v.starelid::regclass, v.staattnum, v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ v.stakind1, v.stakind2, v.stakind3, v.stakind4,
+ v.staop1, v.staop2, v.staop3, v.staop4,
+ NULL, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ), NULL)
+ FROM dbms_stats._column_stats_locked v
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2) m;
+ starelid | staattnum | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+----------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+---------------------------+-------------------+------------+-----------------------------------
+ st0 | 2 | t | -2 | -2 | -2 | 2 | 3 | 4 | 1 | 22 | 23 | 24 | 21 | (null) | {-2,23} | {-2,24} | {-2,21} | {"test ","test ","test "} | {"test ","test "} | {"test "} | {"test ","test ","test ","test "}
+(1 row)
+
+-- No.5-1-11
+SELECT dbms_stats.merge((
+ v.starelid::regclass, v.staattnum, v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ v.stakind1, v.stakind2, v.stakind3, v.stakind4,
+ v.staop1, v.staop2, v.staop3,
+ NULL, v.stanumbers1, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ), (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ s.stakind1, s.stakind2, s.stakind3, s.stakind4,
+ s.staop1, s.staop2, s.staop3,
+ NULL, s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ))
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2;
+LOG: pg_dbms_stats: bad statistics
+DETAIL: column "staop4" should not be null
+ merge
+--------
+ (null)
+(1 row)
+
+-- No.5-1-12
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ FROM (SELECT dbms_stats.merge((
+ v.starelid::regclass, v.staattnum, v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ v.stakind1, v.stakind2, v.stakind3, v.stakind4,
+ v.staop1, v.staop2, v.staop3, v.staop4,
+ NULL, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ), (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ s.stakind1, s.stakind2, s.stakind3, s.stakind4,
+ s.staop1, s.staop2, s.staop3, s.staop4,
+ NULL, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ))
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2) m;
+ starelid | staattnum | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+----------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+---------------------------+-------------------+------------+-----------------------------------
+ st0 | 2 | t | -2 | -2 | -2 | 2 | 3 | 4 | 1 | 22 | 23 | 24 | 21 | (null) | {-2,23} | {-2,24} | {-2,21} | {"test ","test ","test "} | {"test ","test "} | {"test "} | {"test ","test ","test ","test "}
+(1 row)
+
+-- No.5-1-13
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ FROM (SELECT dbms_stats.merge((
+ NULL, NULL, NULL,
+ NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL
+ ), s)
+ FROM pg_statistic s
+ WHERE s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2) m;
+ starelid | staattnum | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+----------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+------------+------------+---------------+-------------------
+ st0 | 1 | f | 1 | 1 | 1 | 4 | 1 | 2 | 3 | 14 | 11 | 12 | 13 | {1,4} | {1,1} | {1,2} | {1,3} | {1,2} | {1,2,1,2} | {1,2,1,2,1,2} | {1,2,1,2,1,2,1,2}
+(1 row)
+
+-- No.5-1-14
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ FROM (SELECT dbms_stats.merge(v, (
+ NULL, NULL, NULL,
+ NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL))
+ FROM dbms_stats._column_stats_locked v
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2) m;
+ starelid | staattnum | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+----------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+---------------------------+-------------------+------------+-----------------------------------
+ st0 | 2 | t | -2 | -2 | -2 | 2 | 3 | 4 | 1 | 22 | 23 | 24 | 21 | {-2,22} | {-2,23} | {-2,24} | {-2,21} | {"test ","test ","test "} | {"test ","test "} | {"test "} | {"test ","test ","test ","test "}
+(1 row)
+
+-- No.5-1-15
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ FROM (SELECT dbms_stats.merge(v, s)
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2) m;
+ starelid | staattnum | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+----------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+---------------------------+-------------------+------------+-----------------------------------
+ st0 | 2 | t | -2 | -2 | -2 | 2 | 3 | 4 | 1 | 22 | 23 | 24 | 21 | {-2,22} | {-2,23} | {-2,24} | {-2,21} | {"test ","test ","test "} | {"test ","test "} | {"test "} | {"test ","test ","test ","test "}
+(1 row)
+
+-- No.5-1-16
+SELECT dbms_stats.merge((
+ v.starelid::regclass, v.staattnum, v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL
+ ), (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL))
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2;
+LOG: pg_dbms_stats: bad statistics
+DETAIL: column "stakind1" should not be null
+ merge
+--------
+ (null)
+(1 row)
+
+-- No.5-1-17
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ FROM (SELECT dbms_stats.merge((
+ v.starelid::regclass, v.staattnum, v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ v.stakind1, v.stakind2, v.stakind3, v.stakind4,
+ v.staop1, v.staop2, v.staop3,
+ NULL, v.stanumbers1, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ), (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ s.stakind1, s.stakind2, s.stakind3, s.stakind4,
+ s.staop1, s.staop2, s.staop3, s.staop4,
+ s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ))
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '1'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2) m;
+ starelid | staattnum | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+----------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+------------+------------+---------------+-------------------
+ st0 | 1 | t | -1 | -1 | -1 | 4 | 1 | 2 | 3 | 14 | 11 | 12 | 13 | {1,4} | {1,1} | {1,2} | {1,3} | {1,2} | {1,2,1,2} | {1,2,1,2,1,2} | {1,2,1,2,1,2,1,2}
+(1 row)
+
+-- No.5-1-18
+SELECT dbms_stats.merge((
+ v.starelid::regclass, v.staattnum, v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ v.stakind1, v.stakind2, v.stakind3, v.stakind4,
+ v.staop1, v.staop2, v.staop3,
+ NULL, v.stanumbers1, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ), (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ s.stakind1, s.stakind2, s.stakind3, s.stakind4,
+ s.staop1, s.staop2, s.staop3,
+ NULL, s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ))
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '1'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2;
+LOG: pg_dbms_stats: bad statistics
+DETAIL: column "staop4" should not be null
+ merge
+--------
+ (null)
+(1 row)
+
+-- No.5-1-19
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ FROM (SELECT dbms_stats.merge((
+ v.starelid::regclass, v.staattnum, v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ '1', '1', '1', '1',
+ v.staop1, v.staop2, v.staop3, v.staop4,
+ v.stanumbers1, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ), (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ '1', '1', '1', '1',
+ s.staop1, s.staop2, s.staop3, s.staop4,
+ s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ))
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2) m;
+ starelid | staattnum | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+----------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+---------------------------+-------------------+------------+-----------------------------------
+ st0 | 2 | t | -2 | -2 | -2 | 1 | 1 | 1 | 1 | 22 | 23 | 24 | 21 | {-2,22} | {-2,23} | {-2,24} | {-2,21} | {"test ","test ","test "} | {"test ","test "} | {"test "} | {"test ","test ","test ","test "}
+(1 row)
+
+-- No.5-1-20
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ FROM (SELECT dbms_stats.merge((v.starelid::regclass, v.staattnum, v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ '2', '2', '2', '2',
+ v.staop1, v.staop2, v.staop3, v.staop4,
+ v.stanumbers1, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ), (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ '2', '2', '2', '2',
+ s.staop1, s.staop2, s.staop3, s.staop4,
+ s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ))
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2) m;
+ starelid | staattnum | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+----------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+---------------------------+-------------------+------------+-----------------------------------
+ st0 | 2 | t | -2 | -2 | -2 | 2 | 2 | 2 | 2 | 22 | 23 | 24 | 21 | {-2,22} | {-2,23} | {-2,24} | {-2,21} | {"test ","test ","test "} | {"test ","test "} | {"test "} | {"test ","test ","test ","test "}
+(1 row)
+
+-- No.5-1-21
+SELECT dbms_stats.merge((v.starelid::regclass, '2', v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ '1', '1', '1', '1',
+ v.staop1, v.staop2, v.staop3, v.staop4,
+ v.stanumbers1, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ), (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ '1', '1', '1', '1',
+ s.staop1, s.staop2, s.staop3, s.staop4,
+ s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ))
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '1'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2;
+LOG: pg_dbms_stats: bad column type
+DETAIL: type of column "name" has been changed
+HINT: need to execute dbms_stats.unlock('st0', 'name')
+ merge
+--------
+ (null)
+(1 row)
+
+-- No.5-1-22
+SELECT dbms_stats.merge((v.starelid::regclass, '2', v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ '2', '2', '2', '2',
+ v.staop1, v.staop2, v.staop3, v.staop4,
+ v.stanumbers1, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ), (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ '2', '2', '2', '2',
+ s.staop1, s.staop2, s.staop3, s.staop4,
+ s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ))
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '1'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2;
+LOG: pg_dbms_stats: bad column type
+DETAIL: type of column "name" has been changed
+HINT: need to execute dbms_stats.unlock('st0', 'name')
+ merge
+--------
+ (null)
+(1 row)
+
+RESET client_min_messages;
+SELECT dbms_stats.unlock_database_stats();
+ unlock_database_stats
+-----------------------
+ st0
+(1 row)
+
+/*
+ * No.6-4 dbms_stats.is_target_relkind
+ */
+-- No.6-4-10
+SELECT dbms_stats.is_target_relkind('f');
+ is_target_relkind
+-------------------
+ f
+(1 row)
+
+/*
+ * No.7-1 dbms_stats.backup
+ */
+DELETE FROM dbms_stats.backup_history;
+INSERT INTO dbms_stats.backup_history(id, time, unit) values(1, '2012-01-01', 'd');
+-- No.7-1-9
+SELECT dbms_stats.backup(1, 's0.sft0'::regclass, NULL);
+ backup
+--------
+ 1
+(1 row)
+
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+ count
+-------
+ 0
+(1 row)
+
+-- No.7-1-11
+DELETE FROM dbms_stats.relation_stats_backup;
+SELECT dbms_stats.backup(1, NULL, 1::int2);
+ backup
+--------
+ 1
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats.relation_stats_backup
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s1.st0
+ st1_idx
+ st1_exp
+(14 rows)
+
+SELECT starelid::regclass, staattnum FROM dbms_stats.column_stats_backup
+ GROUP BY starelid, staattnum
+ ORDER BY starelid, staattnum;
+ starelid | staattnum
+----------+-----------
+ st0 | 1
+ st1 | 1
+ s0.st0 | 1
+ s0.st1 | 1
+ s0.st2 | 1
+ s1.st0 | 1
+ st1_exp | 1
+(7 rows)
+
+-- No.7-1-13
+DELETE FROM dbms_stats.relation_stats_backup;
+SELECT dbms_stats.backup(1, NULL::regclass, NULL);
+ backup
+--------
+ 1
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats.relation_stats_backup
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s1.st0
+ st1_idx
+ st1_exp
+(14 rows)
+
+SELECT starelid::regclass, staattnum FROM dbms_stats.column_stats_backup
+ GROUP BY starelid, staattnum
+ ORDER BY starelid, staattnum;
+ starelid | staattnum
+----------+-----------
+ st0 | 1
+ st0 | 2
+ st1 | 1
+ st1 | 2
+ s0.st0 | 1
+ s0.st0 | 2
+ s0.st1 | 1
+ s0.st1 | 2
+ s0.st2 | 1
+ s0.st2 | 2
+ s1.st0 | 1
+ s1.st0 | 2
+ st1_exp | 1
+(13 rows)
+
+-- No.7-1-17
+DELETE FROM dbms_stats.relation_stats_backup;
+SELECT dbms_stats.backup(NULL, 's0.st0'::regclass, NULL);
+ERROR: null value in column "id" violates not-null constraint
+CONTEXT: SQL function "backup" statement 1
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+ count
+-------
+ 0
+(1 row)
+
+/*
+ * No.8-1 dbms_stats.backup
+ */
+SELECT setval('dbms_stats.backup_history_id_seq',1, false);
+ setval
+--------
+ 1
+(1 row)
+
+/*
+ * Stab function dbms_stats.backup
+ */
+ALTER FUNCTION dbms_stats.backup(
+ backup_id int8,
+ relid regclass,
+ attnum int2)
+ RENAME TO truth_func_backup;
+CREATE OR REPLACE FUNCTION dbms_stats.backup(
+ backup_id int8,
+ regclass,
+ attnum int2)
+RETURNS int8 AS
+$$
+BEGIN
+ RAISE NOTICE 'arguments are %, %, %', $1, $2, $3;
+ RETURN 1;
+END;
+$$
+LANGUAGE plpgsql;
+-- No.8-1-1
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup('s0.st0'::regclass, 'id', 'dummy comment');
+NOTICE: arguments are 1, s0.st0, 1
+CONTEXT: SQL statement "INSERT INTO dbms_stats.backup_history(time, unit, comment)
+ VALUES (current_timestamp, unit_type, $3)
+ RETURNING dbms_stats.backup(id, $1, set_attnum)"
+PL/pgSQL function "backup" line 42 at SQL statement
+ backup
+--------
+ 1
+(1 row)
+
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+ id | unit | comment
+----+------+---------------
+ 1 | c | dummy comment
+(1 row)
+
+-- No.8-1-2
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup('s0.st0'::regclass, NULL, 'dummy comment');
+NOTICE: arguments are 2, s0.st0, <NULL>
+CONTEXT: SQL statement "INSERT INTO dbms_stats.backup_history(time, unit, comment)
+ VALUES (current_timestamp, unit_type, $3)
+ RETURNING dbms_stats.backup(id, $1, set_attnum)"
+PL/pgSQL function "backup" line 42 at SQL statement
+ backup
+--------
+ 1
+(1 row)
+
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+ id | unit | comment
+----+------+---------------
+ 2 | t | dummy comment
+(1 row)
+
+-- No.8-1-3
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup(NULL::regclass, 'id', 'dummy comment');
+ERROR: relation is required
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+ id | unit | comment
+----+------+---------
+(0 rows)
+
+-- No.8-1-4
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup(NULL::regclass, NULL, 'dummy comment');
+NOTICE: arguments are 3, <NULL>, <NULL>
+CONTEXT: SQL statement "INSERT INTO dbms_stats.backup_history(time, unit, comment)
+ VALUES (current_timestamp, unit_type, $3)
+ RETURNING dbms_stats.backup(id, $1, set_attnum)"
+PL/pgSQL function "backup" line 42 at SQL statement
+ backup
+--------
+ 1
+(1 row)
+
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+ id | unit | comment
+----+------+---------------
+ 3 | d | dummy comment
+(1 row)
+
+-- No.8-1-5
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup(0, NULL, 'dummy comment');
+ERROR: relation "-" does not exist
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+ id | unit | comment
+----+------+---------
+(0 rows)
+
+-- No.8-1-6
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup('s0.st0'::regclass, NULL, 'dummy comment');
+NOTICE: arguments are 4, s0.st0, <NULL>
+CONTEXT: SQL statement "INSERT INTO dbms_stats.backup_history(time, unit, comment)
+ VALUES (current_timestamp, unit_type, $3)
+ RETURNING dbms_stats.backup(id, $1, set_attnum)"
+PL/pgSQL function "backup" line 42 at SQL statement
+ backup
+--------
+ 1
+(1 row)
+
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+ id | unit | comment
+----+------+---------------
+ 4 | t | dummy comment
+(1 row)
+
+-- No.8-1-7
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup(
+ 'pg_toast.pg_toast_2618'::regclass,
+ NULL,
+ 'dummy comment');
+ERROR: can not backup statistics of "pg_toast.pg_toast_2618" with relkind "t"
+HINT: only tables and indexes are supported
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+ id | unit | comment
+----+------+---------
+(0 rows)
+
+-- No.8-1-8
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup('s0.st0_idx'::regclass, NULL, 'dummy comment');
+NOTICE: arguments are 5, s0.st0_idx, <NULL>
+CONTEXT: SQL statement "INSERT INTO dbms_stats.backup_history(time, unit, comment)
+ VALUES (current_timestamp, unit_type, $3)
+ RETURNING dbms_stats.backup(id, $1, set_attnum)"
+PL/pgSQL function "backup" line 42 at SQL statement
+ backup
+--------
+ 1
+(1 row)
+
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+ id | unit | comment
+----+------+---------------
+ 5 | t | dummy comment
+(1 row)
+
+-- No.8-1-9
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup('s0.ss0'::regclass, NULL, 'dummy comment');
+ERROR: can not backup statistics of "s0.ss0" with relkind "S"
+HINT: only tables and indexes are supported
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+ id | unit | comment
+----+------+---------
+(0 rows)
+
+-- No.8-1-10
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup('s0.sc0'::regclass, NULL, 'dummy comment');
+ERROR: can not backup statistics of "s0.sc0" with relkind "c"
+HINT: only tables and indexes are supported
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+ id | unit | comment
+----+------+---------
+(0 rows)
+
+-- No.8-1-11
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup('s0.sft0'::regclass, NULL, 'dummy comment');
+ERROR: can not backup statistics of "s0.sft0" with relkind "f"
+HINT: only tables and indexes are supported
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+ id | unit | comment
+----+------+---------
+(0 rows)
+
+-- No.8-1-12
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup('pg_catalog.pg_class'::regclass, NULL, 'dummy comment');
+ERROR: can not backup statistics of system catalog "pg_class"
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+ id | unit | comment
+----+------+---------
+(0 rows)
+
+-- No.8-1-13
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup('s0.st0'::regclass, 'dummy', 'dummy comment');
+ERROR: column "dummy" of "s0.st0" does not exist
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+ id | unit | comment
+----+------+---------
+(0 rows)
+
+-- No.8-1-14
+DELETE FROM dbms_stats.backup_history;
+DELETE FROM pg_statistic
+ WHERE starelid = 's0.st0'::regclass
+ AND staattnum = 1::int2;
+SELECT count(*) FROM dbms_stats.column_stats_effective
+ WHERE starelid = 's0.st0'::regclass
+ AND staattnum = 1::int2;
+ count
+-------
+ 0
+(1 row)
+
+SELECT dbms_stats.backup('s0.st0'::regclass, 'id', 'dummy comment');
+ERROR: statistic for column "id" of "s0.st0" does not exist
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+ id | unit | comment
+----+------+---------
+(0 rows)
+
+/*
+ * Stab function dbms_stats.backup
+ */
+ALTER FUNCTION dbms_stats.backup(
+ relid regclass,
+ attname text,
+ comment text)
+ RENAME TO truth_func_backup;
+CREATE OR REPLACE FUNCTION dbms_stats.backup(
+ relid regclass DEFAULT NULL,
+ attname text DEFAULT NULL,
+ comment text DEFAULT NULL)
+RETURNS int8 AS
+$$
+BEGIN
+ IF $3 = '<NULL>' THEN
+ RAISE NOTICE 'third argument is not NULL but string "<NULL>"';
+ END IF;
+ RAISE NOTICE 'arguments are %, %, %', $1, $2, $3;
+ RETURN 1;
+END;
+$$
+LANGUAGE plpgsql;
+/*
+ * No.8-3 dbms_stats.backup_schema_stats
+ */
+SELECT setval('dbms_stats.backup_history_id_seq',9, false);
+ setval
+--------
+ 9
+(1 row)
+
+-- No.8-3-1
+SELECT dbms_stats.backup_schema_stats('s0', 'comment');
+NOTICE: arguments are 9, s0.st0, <NULL>
+CONTEXT: SQL statement "SELECT dbms_stats.backup(backup_id, cn.oid, NULL)
+ FROM (SELECT c.oid
+ FROM pg_catalog.pg_class c,
+ pg_catalog.pg_namespace n
+ WHERE n.nspname = schemaname
+ AND c.relnamespace = n.oid
+ AND dbms_stats.is_target_relkind(c.relkind)
+ ORDER BY c.oid
+ ) cn"
+PL/pgSQL function "backup_schema_stats" line 16 at PERFORM
+NOTICE: arguments are 9, s0.st0_idx, <NULL>
+CONTEXT: SQL statement "SELECT dbms_stats.backup(backup_id, cn.oid, NULL)
+ FROM (SELECT c.oid
+ FROM pg_catalog.pg_class c,
+ pg_catalog.pg_namespace n
+ WHERE n.nspname = schemaname
+ AND c.relnamespace = n.oid
+ AND dbms_stats.is_target_relkind(c.relkind)
+ ORDER BY c.oid
+ ) cn"
+PL/pgSQL function "backup_schema_stats" line 16 at PERFORM
+NOTICE: arguments are 9, s0.st1, <NULL>
+CONTEXT: SQL statement "SELECT dbms_stats.backup(backup_id, cn.oid, NULL)
+ FROM (SELECT c.oid
+ FROM pg_catalog.pg_class c,
+ pg_catalog.pg_namespace n
+ WHERE n.nspname = schemaname
+ AND c.relnamespace = n.oid
+ AND dbms_stats.is_target_relkind(c.relkind)
+ ORDER BY c.oid
+ ) cn"
+PL/pgSQL function "backup_schema_stats" line 16 at PERFORM
+NOTICE: arguments are 9, s0.st1_idx, <NULL>
+CONTEXT: SQL statement "SELECT dbms_stats.backup(backup_id, cn.oid, NULL)
+ FROM (SELECT c.oid
+ FROM pg_catalog.pg_class c,
+ pg_catalog.pg_namespace n
+ WHERE n.nspname = schemaname
+ AND c.relnamespace = n.oid
+ AND dbms_stats.is_target_relkind(c.relkind)
+ ORDER BY c.oid
+ ) cn"
+PL/pgSQL function "backup_schema_stats" line 16 at PERFORM
+NOTICE: arguments are 9, s0.st2, <NULL>
+CONTEXT: SQL statement "SELECT dbms_stats.backup(backup_id, cn.oid, NULL)
+ FROM (SELECT c.oid
+ FROM pg_catalog.pg_class c,
+ pg_catalog.pg_namespace n
+ WHERE n.nspname = schemaname
+ AND c.relnamespace = n.oid
+ AND dbms_stats.is_target_relkind(c.relkind)
+ ORDER BY c.oid
+ ) cn"
+PL/pgSQL function "backup_schema_stats" line 16 at PERFORM
+NOTICE: arguments are 9, s0.st2_idx, <NULL>
+CONTEXT: SQL statement "SELECT dbms_stats.backup(backup_id, cn.oid, NULL)
+ FROM (SELECT c.oid
+ FROM pg_catalog.pg_class c,
+ pg_catalog.pg_namespace n
+ WHERE n.nspname = schemaname
+ AND c.relnamespace = n.oid
+ AND dbms_stats.is_target_relkind(c.relkind)
+ ORDER BY c.oid
+ ) cn"
+PL/pgSQL function "backup_schema_stats" line 16 at PERFORM
+ backup_schema_stats
+---------------------
+ 9
+(1 row)
+
+SELECT id, unit, comment FROM dbms_stats.backup_history
+ ORDER BY id DESC
+ LIMIT 1;
+ id | unit | comment
+----+------+---------
+ 9 | s | comment
+(1 row)
+
+-- No.8-3-2
+SELECT dbms_stats.backup_schema_stats('s00', 'comment');
+ERROR: schema "s00" does not exist
+SELECT id, unit, comment FROM dbms_stats.backup_history
+ ORDER BY id DESC
+ LIMIT 1;
+ id | unit | comment
+----+------+---------
+ 9 | s | comment
+(1 row)
+
+-- No.8-3-3
+SELECT dbms_stats.backup_schema_stats('pg_catalog', 'comment');
+ERROR: can not backup statistics of relation in system schema "pg_catalog"
+SELECT id, unit, comment FROM dbms_stats.backup_history
+ ORDER BY id DESC
+ LIMIT 1;
+ id | unit | comment
+----+------+---------
+ 9 | s | comment
+(1 row)
+
+/*
+ * Delete stab function dbms_stats.backup
+ */
+DROP FUNCTION dbms_stats.backup(
+ backup_id int8,
+ regclass,
+ attnum int2);
+ALTER FUNCTION dbms_stats.truth_func_backup(
+ backup_id int8,
+ regclass,
+ attnum int2)
+ RENAME TO backup;
+DROP FUNCTION dbms_stats.backup(
+ regclass,
+ attname text,
+ comment text);
+ALTER FUNCTION dbms_stats.truth_func_backup(
+ regclass,
+ attname text,
+ comment text)
+ RENAME TO backup;
+VACUUM ANALYZE;
+/*
+ * create backup statistics state A
+ */
+DELETE FROM dbms_stats.backup_history;
+INSERT INTO dbms_stats.backup_history(id, time, unit)
+ VALUES (1, '2012-02-29 23:59:56.999999', 'd');
+SELECT setval('dbms_stats.backup_history_id_seq',1);
+ setval
+--------
+ 1
+(1 row)
+
+SELECT dbms_stats.backup();
+ backup
+--------
+ 2
+(1 row)
+
+UPDATE dbms_stats.backup_history
+ SET time = '2012-02-29 23:59:57'
+ WHERE id = 2;
+SELECT dbms_stats.backup('s0.st0');
+ backup
+--------
+ 3
+(1 row)
+
+UPDATE dbms_stats.backup_history
+ SET time = '2012-02-29 23:59:57.000001'
+ WHERE id = 3;
+SELECT dbms_stats.backup();
+ backup
+--------
+ 4
+(1 row)
+
+UPDATE dbms_stats.backup_history
+ SET time = '2012-02-29 23:59:58'
+ WHERE id = 4;
+DELETE FROM dbms_stats.relation_stats_backup
+ WHERE id = 4;
+SELECT dbms_stats.backup('s0.st0', 'id');
+ backup
+--------
+ 5
+(1 row)
+
+UPDATE dbms_stats.backup_history
+ SET time = '2012-03-01 00:00:00'
+ WHERE id = 5;
+SELECT dbms_stats.backup('s0.st0');
+ backup
+--------
+ 6
+(1 row)
+
+UPDATE dbms_stats.backup_history
+ SET time = '2012-03-01 00:00:02'
+ WHERE id = 6;
+SELECT dbms_stats.backup('public.st0');
+ backup
+--------
+ 7
+(1 row)
+
+UPDATE dbms_stats.backup_history
+ SET time = '2012-03-01 00:00:04'
+ WHERE id = 7;
+INSERT INTO dbms_stats.backup_history(time, unit)
+ VALUES ('2012-03-01 00:00:06', 's');
+SELECT dbms_stats.backup(8, c.oid, NULL)
+ FROM pg_catalog.pg_class c,
+ pg_catalog.pg_namespace n
+ WHERE n.nspname = 's0'
+ AND c.relnamespace = n.oid
+ AND c.relkind IN ('r', 'i');
+ backup
+--------
+ 8
+ 8
+ 8
+ 8
+ 8
+ 8
+(6 rows)
+
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+ id | time | unit | comment
+----+-------------------------------------+------+---------
+ 1 | Wed Feb 29 23:59:56.999999 2012 PST | d | (null)
+ 2 | Wed Feb 29 23:59:57 2012 PST | d | (null)
+ 3 | Wed Feb 29 23:59:57.000001 2012 PST | t | (null)
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(8 rows)
+
+SELECT * FROM relations_backup_v;
+ id | relid | relname | relpages | reltuples | curpages
+----+------------+----------------+----------+-----------+----------
+ 2 | pt0 | public.pt0 | 0 | 0 | 0
+ 2 | pt0_idx | public.pt0_idx | 2 | 0 | 2
+ 2 | st0 | public.st0 | 1 | 2 | 1
+ 2 | st0_idx | public.st0_idx | 2 | 2 | 2
+ 2 | st1 | public.st1 | 45 | 10000 | 45
+ 2 | s0.st0 | s0.st0 | 1 | 2 | 1
+ 2 | s0.st0_idx | s0.st0_idx | 2 | 2 | 2
+ 2 | s0.st1 | s0.st1 | 1 | 3 | 1
+ 2 | s0.st1_idx | s0.st1_idx | 2 | 3 | 2
+ 2 | s0.st2 | s0.st2 | 1 | 3 | 1
+ 2 | s0.st2_idx | s0.st2_idx | 2 | 3 | 2
+ 2 | s1.st0 | s1.st0 | 1 | 4 | 1
+ 2 | st1_idx | public.st1_idx | 30 | 10000 | 30
+ 2 | st1_exp | public.st1_exp | 30 | 10000 | 30
+ 3 | s0.st0 | s0.st0 | 1 | 2 | 1
+ 5 | s0.st0 | s0.st0 | 1 | 2 | 1
+ 6 | s0.st0 | s0.st0 | 1 | 2 | 1
+ 7 | st0 | public.st0 | 1 | 2 | 1
+ 8 | s0.st0 | s0.st0 | 1 | 2 | 1
+ 8 | s0.st0_idx | s0.st0_idx | 2 | 2 | 2
+ 8 | s0.st1 | s0.st1 | 1 | 3 | 1
+ 8 | s0.st1_idx | s0.st1_idx | 2 | 3 | 2
+ 8 | s0.st2 | s0.st2 | 1 | 3 | 1
+ 8 | s0.st2_idx | s0.st2_idx | 2 | 3 | 2
+(24 rows)
+
+SELECT * FROM columns_backup_v;
+ id | statypid | starelid | staattnum | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+----+----------+----------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+------------------------+-------------+-------------+-------------+------------------+------------+------------+------------
+ 2 | 23 | st0 | 1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2} | (null) | (null) | (null)
+ 2 | 1042 | st0 | 2 | f | 0 | 6 | -0.5 | 1 | 3 | 0 | 0 | 1054 | 1058 | 0 | 0 | {1} | {1} | (null) | (null) | {"test "} | (null) | (null) | (null)
+ 2 | 23 | st1 | 1 | f | 0 | 4 | 3 | 1 | 3 | 0 | 0 | 96 | 97 | 0 | 0 | {0.3334,0.3333,0.3333} | {0.3332} | (null) | (null) | {1,0,2} | (null) | (null) | (null)
+ 2 | 25 | st1 | 2 | f | 0 | 2 | 3 | 1 | 3 | 0 | 0 | 98 | 664 | 0 | 0 | {0.3334,0.3333,0.3333} | {0.3332} | (null) | (null) | {1,0,2} | (null) | (null) | (null)
+ 2 | 23 | s0.st0 | 1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2} | (null) | (null) | (null)
+ 2 | 23 | s0.st0 | 1 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null)
+ 2 | 23 | s0.st0 | 2 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {10,20} | (null) | (null) | (null)
+ 2 | 23 | s0.st0 | 2 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {10,20,40,50,60} | (null) | (null) | (null)
+ 2 | 23 | s0.st1 | 1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {4,5,6} | (null) | (null) | (null)
+ 2 | 23 | s0.st1 | 2 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {40,50,60} | (null) | (null) | (null)
+ 2 | 23 | s0.st2 | 1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2,3} | (null) | (null) | (null)
+ 2 | 25 | s0.st2 | 2 | f | 0 | 5 | -1 | 2 | 3 | 0 | 0 | 664 | 664 | 0 | 0 | (null) | {0.5} | (null) | (null) | {1,comment,test} | (null) | (null) | (null)
+ 2 | 23 | s1.st0 | 1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2,3,4} | (null) | (null) | (null)
+ 2 | 23 | s1.st0 | 2 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {15,25,35,45} | (null) | (null) | (null)
+ 2 | 25 | st1_exp | 1 | f | 0 | 5 | 3 | 1 | 3 | 0 | 0 | 98 | 664 | 0 | 0 | {0.3334,0.3333,0.3333} | {0.3332} | (null) | (null) | {1,0,2} | (null) | (null) | (null)
+ 3 | 23 | s0.st0 | 1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2} | (null) | (null) | (null)
+ 3 | 23 | s0.st0 | 1 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null)
+ 3 | 23 | s0.st0 | 2 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {10,20} | (null) | (null) | (null)
+ 3 | 23 | s0.st0 | 2 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {10,20,40,50,60} | (null) | (null) | (null)
+ 5 | 23 | s0.st0 | 1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2} | (null) | (null) | (null)
+ 5 | 23 | s0.st0 | 1 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null)
+ 6 | 23 | s0.st0 | 1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2} | (null) | (null) | (null)
+ 6 | 23 | s0.st0 | 1 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null)
+ 6 | 23 | s0.st0 | 2 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {10,20} | (null) | (null) | (null)
+ 6 | 23 | s0.st0 | 2 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {10,20,40,50,60} | (null) | (null) | (null)
+ 7 | 23 | st0 | 1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2} | (null) | (null) | (null)
+ 7 | 1042 | st0 | 2 | f | 0 | 6 | -0.5 | 1 | 3 | 0 | 0 | 1054 | 1058 | 0 | 0 | {1} | {1} | (null) | (null) | {"test "} | (null) | (null) | (null)
+ 8 | 23 | s0.st0 | 1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2} | (null) | (null) | (null)
+ 8 | 23 | s0.st0 | 1 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null)
+ 8 | 23 | s0.st0 | 2 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {10,20} | (null) | (null) | (null)
+ 8 | 23 | s0.st0 | 2 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {10,20,40,50,60} | (null) | (null) | (null)
+ 8 | 23 | s0.st1 | 1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {4,5,6} | (null) | (null) | (null)
+ 8 | 23 | s0.st1 | 2 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {40,50,60} | (null) | (null) | (null)
+ 8 | 23 | s0.st2 | 1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2,3} | (null) | (null) | (null)
+ 8 | 25 | s0.st2 | 2 | f | 0 | 5 | -1 | 2 | 3 | 0 | 0 | 664 | 664 | 0 | 0 | (null) | {0.5} | (null) | (null) | {1,comment,test} | (null) | (null) | (null)
+(35 rows)
+
+VACUUM ANALYZE;
+/*
+ * No.9-1 dbms_stats.restore
+ */
+-- No.9-1-1
+DELETE FROM dbms_stats._relation_stats_locked;
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+----------+---------------
+ (null) | ExclusiveLock
+(1 row)
+
+SELECT dbms_stats.restore(2, 's0.st0', NULL);
+ restore
+---------
+ s0.st0
+(1 row)
+
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+----------------------------------------+--------------------------
+ dbms_stats._column_stats_locked | RowExclusiveLock
+ dbms_stats._column_stats_locked | ShareUpdateExclusiveLock
+ dbms_stats._column_stats_locked_pkey | RowExclusiveLock
+ dbms_stats._relation_stats_locked | RowExclusiveLock
+ dbms_stats._relation_stats_locked | ShareUpdateExclusiveLock
+ dbms_stats._relation_stats_locked_pkey | RowExclusiveLock
+ (null) | ExclusiveLock
+ (null) | ExclusiveLock
+(8 rows)
+
+COMMIT;
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+--------
+ s0.st0
+(1 row)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+(4 rows)
+
+-- No.9-1-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, 'st0', NULL);
+ restore
+---------
+ st0
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+-------
+ st0
+(1 row)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+(2 rows)
+
+-- No.9-1-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, 's00.s0', NULL);
+ERROR: schema "s00" does not exist
+LINE 1: SELECT dbms_stats.restore(2, 's00.s0', NULL);
+ ^
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+-- No.9-1-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(NULL, 's0.st0', NULL);
+ERROR: backup id is required
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+-- No.9-1-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, 's0.st0', 'id');
+ restore
+---------
+ s0.st0
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+--------
+ s0.st0
+(1 row)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ s0.st0 | id | f
+ s0.st0 | id | t
+(2 rows)
+
+-- No.9-1-6
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, NULL, 'id');
+ERROR: relation is required
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+-- No.9-1-7
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, 's0.st0', NULL);
+ restore
+---------
+ s0.st0
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+--------
+ s0.st0
+(1 row)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+(4 rows)
+
+-- No.9-1-8
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, NULL, NULL);
+ restore
+------------
+ pt0
+ pt0_idx
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s1.st0
+ st0
+ st0_idx
+ st1
+ st1_exp
+ st1_idx
+(14 rows)
+
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s1.st0
+ st1_idx
+ st1_exp
+(14 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+ st1_exp | lower | f
+(15 rows)
+
+-- No.9-1-9
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(0, 's0.st0', NULL);
+ERROR: backup id 0 does not exist
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+-------
+(0 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+(0 rows)
+
+-- No.9-1-10
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, 0, 'id');
+ERROR: relation "-" does not exist
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+-- No.9-1-11
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(1, 's0.st0', NULL);
+ERROR: relation "s0.st0" does not exist in previous backup
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+-- No.9-1-12
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, 's0.st0', 'dummy');
+ERROR: column "dummy" of "s0.st0" does not exist
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+-- No.9-1-13
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(1, 's0.st0', 'id');
+ERROR: relation "s0.st0" does not exist in previous backup
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+-- No.9-1-15
+DELETE FROM dbms_stats._relation_stats_locked;
+ALTER TABLE s1.st0 DROP COLUMN id;
+SELECT dbms_stats.restore(2, 's1.st0', 'id');
+ERROR: column "id" of "s1.st0" does not exist
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+-------
+(0 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+(0 rows)
+
+-- No.9-1-14
+DELETE FROM dbms_stats._relation_stats_locked;
+\set s1_st0_oid `psql contrib_regression -tA -c "SELECT c.oid FROM pg_class c, pg_namespace n WHERE c.relnamespace = n.oid AND n.nspname = 's1' AND c.relname = 'st0';"`
+DROP TABLE s1.st0;
+SET client_min_messages TO FATAL;
+SELECT dbms_stats.restore(2, :s1_st0_oid, NULL);
+RESET client_min_messages;
+\! tail ${PGDATA}/pg_log/postgresql.log > results/ut_no3_1_14.out
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+CREATE TABLE s1.st0(id integer, num integer);
+INSERT INTO s1.st0 VALUES (1, 15), (2, 25), (3, 35), (4, 45);
+VACUUM ANALYZE;
+-- No.9-1-16
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, 's0.st0', NULL);
+ restore
+---------
+ s0.st0
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+--------
+ s0.st0
+(1 row)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+(4 rows)
+
+-- No.9-1-17
+DELETE FROM dbms_stats._relation_stats_locked;
+INSERT INTO dbms_stats.relation_stats_backup(
+ id, relid, relname, relpages, reltuples,
+ curpages)
+ VALUES (2,
+ 'pg_toast.pg_toast_2618'::regclass,
+ 'pg_toast.pg_toast_2618', 1, 1,
+ 1);
+SELECT * FROM relations_backup_v
+ WHERE id = 2
+ AND relname = 'pg_toast.pg_toast_2618';
+ id | relid | relname | relpages | reltuples | curpages
+----+------------------------+------------------------+----------+-----------+----------
+ 2 | pg_toast.pg_toast_2618 | pg_toast.pg_toast_2618 | 1 | 1 | 1
+(1 row)
+
+SELECT dbms_stats.restore(2, 'pg_toast.pg_toast_2618', NULL);
+ restore
+---------
+(0 rows)
+
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+DELETE FROM dbms_stats.relation_stats_backup
+ WHERE id = 2
+ AND relname = 'pg_toast.pg_toast_2618';
+-- No.9-1-18
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, 's0.st0_idx', NULL);
+ restore
+------------
+ s0.st0_idx
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ s0.st0_idx
+(1 row)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+(0 rows)
+
+-- No.9-1-19
+DELETE FROM dbms_stats._relation_stats_locked;
+INSERT INTO dbms_stats.relation_stats_backup(
+ id, relid, relname, relpages, reltuples,
+ curpages)
+ VALUES (2, 's0.ss0'::regclass, 's0.ss0', 1, 1,
+ 1);
+SELECT * FROM relations_backup_v
+ WHERE id = 2
+ AND relname = 's0.ss0';
+ id | relid | relname | relpages | reltuples | curpages
+----+--------+---------+----------+-----------+----------
+ 2 | s0.ss0 | s0.ss0 | 1 | 1 | 1
+(1 row)
+
+SELECT dbms_stats.restore(2, 's0.ss0', NULL);
+ restore
+---------
+(0 rows)
+
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+DELETE FROM dbms_stats.relation_stats_backup
+ WHERE id = 2
+ AND relname = 's0.ss0';
+-- No.9-1-20
+DELETE FROM dbms_stats._relation_stats_locked;
+INSERT INTO dbms_stats.relation_stats_backup(
+ id, relid, relname, relpages, reltuples,
+ curpages)
+ VALUES (2, 's0.sc0'::regclass, 's0.sc0', 1, 1,
+ 1);
+SELECT * FROM relations_backup_v
+ WHERE id = 2
+ AND relname = 's0.sc0';
+ id | relid | relname | relpages | reltuples | curpages
+----+--------+---------+----------+-----------+----------
+ 2 | s0.sc0 | s0.sc0 | 1 | 1 | 1
+(1 row)
+
+SELECT dbms_stats.restore(2, 's0.sc0', NULL);
+ restore
+---------
+(0 rows)
+
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+DELETE FROM dbms_stats.relation_stats_backup
+ WHERE id = 2
+ AND relname = 's0.sc0';
+-- No.9-1-21
+DELETE FROM dbms_stats._relation_stats_locked;
+INSERT INTO dbms_stats.relation_stats_backup(
+ id, relid, relname, relpages, reltuples,
+ curpages)
+ VALUES (2, 's0.sft0'::regclass, 's0.sft0', 1, 1,
+ 1);
+SELECT * FROM relations_backup_v
+ WHERE id = 2
+ AND relname = 's0.sft0';
+ id | relid | relname | relpages | reltuples | curpages
+----+---------+---------+----------+-----------+----------
+ 2 | s0.sft0 | s0.sft0 | 1 | 1 | 1
+(1 row)
+
+SELECT dbms_stats.restore(2, 's0.sft0', NULL);
+ restore
+---------
+(0 rows)
+
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+DELETE FROM dbms_stats.relation_stats_backup
+ WHERE id = 2
+ AND relname = 's0.sft0';
+-- No.9-1-22
+DELETE FROM dbms_stats._relation_stats_locked;
+INSERT INTO dbms_stats.relation_stats_backup(
+ id, relid, relname, relpages, reltuples,
+ curpages)
+ VALUES (2, 'pg_catalog.pg_class'::regclass, 'pg_catalog.pg_class', 1, 1,
+ 1);
+SELECT * FROM relations_backup_v
+ WHERE id = 2
+ AND relname = 'pg_catalog.pg_class';
+ id | relid | relname | relpages | reltuples | curpages
+----+----------+---------------------+----------+-----------+----------
+ 2 | pg_class | pg_catalog.pg_class | 1 | 1 | 1
+(1 row)
+
+SELECT dbms_stats.restore(2, 'pg_catalog.pg_class', NULL);
+ restore
+---------
+(0 rows)
+
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+DELETE FROM dbms_stats.relation_stats_backup
+ WHERE id = 2
+ AND relname = 'pg_catalog.pg_class';
+-- No.9-1-23
+DELETE FROM dbms_stats._relation_stats_locked;
+INSERT INTO dbms_stats._relation_stats_locked(relid, relname)
+ VALUES ('s0.st0'::regclass, 's0.st0');
+INSERT INTO dbms_stats._column_stats_locked(starelid, staattnum, stainherit)
+ SELECT starelid::regclass, staattnum, stainherit
+ FROM dbms_stats.column_stats_effective
+ WHERE starelid = 's0.st0'::regclass;
+SELECT id, unit, comment FROM dbms_stats.backup_history
+ WHERE id = 2;
+ id | unit | comment
+----+------+---------
+ 2 | d | (null)
+(1 row)
+
+SELECT * FROM columns_locked_v;
+ starelid | staattnum | attname | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+----------+-----------+---------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+------------+------------+------------+------------
+ s0.st0 | 1 | id | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0.st0 | 1 | id | t | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0.st0 | 2 | num | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0.st0 | 2 | num | t | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+(4 rows)
+
+SELECT * FROM relations_locked_v;
+ relid | relname | relpages | reltuples | curpages
+--------+---------+----------+-----------+----------
+ s0.st0 | s0.st0 | (null) | (null) | (null)
+(1 row)
+
+SELECT dbms_stats.restore(2, 's0.st0', NULL);
+ restore
+---------
+ s0.st0
+(1 row)
+
+SELECT * FROM relations_locked_v;
+ relid | relname | relpages | reltuples | curpages
+--------+---------+----------+-----------+----------
+ s0.st0 | s0.st0 | 1 | 2 | 1
+(1 row)
+
+SELECT * FROM columns_locked_v;
+ starelid | staattnum | attname | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+----------+-----------+---------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+------------------+------------+------------+------------
+ s0.st0 | 1 | id | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2} | (null) | (null) | (null)
+ s0.st0 | 1 | id | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null)
+ s0.st0 | 2 | num | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {10,20} | (null) | (null) | (null)
+ s0.st0 | 2 | num | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {10,20,40,50,60} | (null) | (null) | (null)
+(4 rows)
+
+-- No.9-1-24
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT id, unit, comment FROM dbms_stats.backup_history
+ WHERE id = 2;
+ id | unit | comment
+----+------+---------
+ 2 | d | (null)
+(1 row)
+
+SELECT dbms_stats.restore(2, 's0.st0', NULL);
+ restore
+---------
+ s0.st0
+(1 row)
+
+SELECT * FROM relations_locked_v;
+ relid | relname | relpages | reltuples | curpages
+--------+---------+----------+-----------+----------
+ s0.st0 | s0.st0 | 1 | 2 | 1
+(1 row)
+
+SELECT * FROM columns_locked_v;
+ starelid | staattnum | attname | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+----------+-----------+---------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+------------------+------------+------------+------------
+ s0.st0 | 1 | id | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2} | (null) | (null) | (null)
+ s0.st0 | 1 | id | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null)
+ s0.st0 | 2 | num | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {10,20} | (null) | (null) | (null)
+ s0.st0 | 2 | num | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {10,20,40,50,60} | (null) | (null) | (null)
+(4 rows)
+
+/*
+ * Stab function dbms_stats.restore
+ */
+CREATE OR REPLACE FUNCTION dbms_stats.restore(
+ backup_id int8,
+ relid regclass DEFAULT NULL,
+ attname text DEFAULT NULL)
+RETURNS SETOF regclass AS
+$$
+BEGIN
+ RAISE NOTICE 'arguments are "%, %, %"', $1, $2, $3;
+ RETURN QUERY
+ SELECT c.oid::regclass
+ FROM pg_class c, dbms_stats.relation_stats_backup b
+ WHERE (c.oid = $2 OR $2 IS NULL)
+ AND c.oid = b.relid
+ AND c.relkind IN ('r', 'i')
+ AND (b.id <= $1 OR $1 IS NOT NULL)
+ GROUP BY c.oid
+ ORDER BY c.oid::regclass::text;
+END;
+$$
+LANGUAGE plpgsql;
+/*
+ * No.10-1 dbms_stats.restore_database_stats
+ */
+-- No.10-1-1
+SELECT dbms_stats.restore_database_stats('2012-02-29 23:59:57');
+NOTICE: arguments are "2, pt0, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, pt0_idx, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, st0, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, st0_idx, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, st1, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, s0.st0, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, s0.st0_idx, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, s0.st1, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, s0.st1_idx, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, s0.st2, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, s0.st2_idx, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, st1_idx, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, st1_exp, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+ restore_database_stats
+------------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+(13 rows)
+
+-- No.10-1-2
+SELECT dbms_stats.restore_database_stats('2012-02-29 23:59:57.000002');
+NOTICE: arguments are "2, pt0, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, pt0_idx, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, st0, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, st0_idx, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, st1, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "3, s0.st0, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, s0.st0_idx, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, s0.st1, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, s0.st1_idx, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, s0.st2, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, s0.st2_idx, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, st1_idx, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, st1_exp, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+ restore_database_stats
+------------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+(13 rows)
+
+-- No.10-1-3
+SELECT dbms_stats.restore_database_stats('2012-01-01 00:00:00');
+ restore_database_stats
+------------------------
+(0 rows)
+
+--#No.10-1-4 is skipped after lock tests
+--#No.10-1-5 is skipped after lock tests
+-- No.10-1-6
+SELECT dbms_stats.restore_database_stats('2012-02-29 23:59:57');
+NOTICE: arguments are "2, pt0, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, pt0_idx, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, st0, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, st0_idx, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, st1, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, s0.st0, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, s0.st0_idx, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, s0.st1, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, s0.st1_idx, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, s0.st2, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, s0.st2_idx, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, st1_idx, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, st1_exp, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+ restore_database_stats
+------------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+(13 rows)
+
+/*
+ * No.10-2 dbms_stats.restore_schema_stats
+ */
+-- No.10-2-1
+SELECT dbms_stats.restore_schema_stats('s0', '2012-02-29 23:59:57');
+NOTICE: arguments are "2, s0.st0, <NULL>"
+CONTEXT: PL/pgSQL function "restore_schema_stats" line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st0_idx, <NULL>"
+CONTEXT: PL/pgSQL function "restore_schema_stats" line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st1, <NULL>"
+CONTEXT: PL/pgSQL function "restore_schema_stats" line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st1_idx, <NULL>"
+CONTEXT: PL/pgSQL function "restore_schema_stats" line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st2, <NULL>"
+CONTEXT: PL/pgSQL function "restore_schema_stats" line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st2_idx, <NULL>"
+CONTEXT: PL/pgSQL function "restore_schema_stats" line 10 at RETURN QUERY
+ restore_schema_stats
+----------------------
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+(6 rows)
+
+-- No.10-2-2
+SELECT dbms_stats.restore_schema_stats('s0', '2012-02-29 23:59:57.000002');
+NOTICE: arguments are "3, s0.st0, <NULL>"
+CONTEXT: PL/pgSQL function "restore_schema_stats" line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st0_idx, <NULL>"
+CONTEXT: PL/pgSQL function "restore_schema_stats" line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st1, <NULL>"
+CONTEXT: PL/pgSQL function "restore_schema_stats" line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st1_idx, <NULL>"
+CONTEXT: PL/pgSQL function "restore_schema_stats" line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st2, <NULL>"
+CONTEXT: PL/pgSQL function "restore_schema_stats" line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st2_idx, <NULL>"
+CONTEXT: PL/pgSQL function "restore_schema_stats" line 10 at RETURN QUERY
+ restore_schema_stats
+----------------------
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+(6 rows)
+
+-- No.10-2-3
+SELECT dbms_stats.restore_schema_stats('s0', '2012-01-01 00:00:00');
+ restore_schema_stats
+----------------------
+(0 rows)
+
+--#No.10-2-4 is skipped after lock tests
+--#No.10-2-5 is skipped after lock tests
+-- No.10-2-6
+SELECT dbms_stats.restore_schema_stats('s0', '2012-02-29 23:59:57');
+NOTICE: arguments are "2, s0.st0, <NULL>"
+CONTEXT: PL/pgSQL function "restore_schema_stats" line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st0_idx, <NULL>"
+CONTEXT: PL/pgSQL function "restore_schema_stats" line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st1, <NULL>"
+CONTEXT: PL/pgSQL function "restore_schema_stats" line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st1_idx, <NULL>"
+CONTEXT: PL/pgSQL function "restore_schema_stats" line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st2, <NULL>"
+CONTEXT: PL/pgSQL function "restore_schema_stats" line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st2_idx, <NULL>"
+CONTEXT: PL/pgSQL function "restore_schema_stats" line 10 at RETURN QUERY
+ restore_schema_stats
+----------------------
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+(6 rows)
+
+-- No.10-2-7
+SELECT dbms_stats.restore_schema_stats('s0', '2012-02-29 23:59:57');
+NOTICE: arguments are "2, s0.st0, <NULL>"
+CONTEXT: PL/pgSQL function "restore_schema_stats" line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st0_idx, <NULL>"
+CONTEXT: PL/pgSQL function "restore_schema_stats" line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st1, <NULL>"
+CONTEXT: PL/pgSQL function "restore_schema_stats" line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st1_idx, <NULL>"
+CONTEXT: PL/pgSQL function "restore_schema_stats" line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st2, <NULL>"
+CONTEXT: PL/pgSQL function "restore_schema_stats" line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st2_idx, <NULL>"
+CONTEXT: PL/pgSQL function "restore_schema_stats" line 10 at RETURN QUERY
+ restore_schema_stats
+----------------------
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+(6 rows)
+
+--#No.10-2-8 is skipped after lock tests
+-- No.10-2-9
+SELECT dbms_stats.restore_schema_stats('s00', '2012-02-29 23:59:57');
+ERROR: schema "s00" does not exist
+-- No.10-2-10
+SELECT dbms_stats.restore_schema_stats('pg_catalog', '2012-02-29 23:59:57');
+ERROR: can not restore statistics of relation in system schema "pg_catalog"
+/*
+ * No.10-7 dbms_stats.restore_stats
+ */
+-- No.10-7-1
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore_stats(NULL);
+ restore_stats
+---------------
+(0 rows)
+
+-- No.10-7-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore_stats(0);
+ERROR: backup id 0 does not exist
+-- No.10-7-3
+DELETE FROM dbms_stats._relation_stats_locked;
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+----------+---------------
+ (null) | ExclusiveLock
+(1 row)
+
+SELECT dbms_stats.restore_stats(2);
+ restore_stats
+---------------
+ pt0
+ pt0_idx
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st0
+ st0_idx
+ st1
+ st1_exp
+ st1_idx
+(13 rows)
+
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+----------------------------------------+--------------------------
+ dbms_stats._column_stats_locked | RowExclusiveLock
+ dbms_stats._column_stats_locked | ShareUpdateExclusiveLock
+ dbms_stats._column_stats_locked_pkey | RowExclusiveLock
+ dbms_stats._relation_stats_locked | RowExclusiveLock
+ dbms_stats._relation_stats_locked | ShareUpdateExclusiveLock
+ dbms_stats._relation_stats_locked_pkey | RowExclusiveLock
+ (null) | ExclusiveLock
+ (null) | ExclusiveLock
+(8 rows)
+
+COMMIT;
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+(13 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+(13 rows)
+
+-- No.10-7-4
+DELETE FROM dbms_stats._relation_stats_locked;
+INSERT INTO dbms_stats._relation_stats_locked(relid, relname)
+ SELECT relid::regclass, relname
+ FROM dbms_stats.relation_stats_effective;
+INSERT INTO dbms_stats._column_stats_locked(starelid, staattnum, stainherit)
+ SELECT starelid::regclass, staattnum, stainherit
+ FROM dbms_stats.column_stats_effective;
+SELECT id, unit, comment FROM dbms_stats.backup_history
+ WHERE id = 8;
+ id | unit | comment
+----+------+---------
+ 8 | s | (null)
+(1 row)
+
+SELECT * FROM columns_locked_v;
+ starelid | staattnum | attname | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+----------+-----------+---------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+------------+------------+------------+------------
+ st0 | 1 | id | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ st0 | 2 | name | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ st1 | 1 | val | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ st1 | 2 | str | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0.st0 | 1 | id | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0.st0 | 1 | id | t | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0.st0 | 2 | num | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0.st0 | 2 | num | t | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0.st1 | 1 | id | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0.st1 | 2 | num | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0.st2 | 1 | id | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0.st2 | 2 | txt | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ st1_exp | 1 | lower | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s1.st0 | 1 | id | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s1.st0 | 2 | num | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+(15 rows)
+
+SELECT * FROM relations_locked_v;
+ relid | relname | relpages | reltuples | curpages
+------------+----------------+----------+-----------+----------
+ pt0 | public.pt0 | (null) | (null) | (null)
+ pt0_idx | public.pt0_idx | (null) | (null) | (null)
+ st0 | public.st0 | (null) | (null) | (null)
+ st0_idx | public.st0_idx | (null) | (null) | (null)
+ st1 | public.st1 | (null) | (null) | (null)
+ s0.st0 | s0.st0 | (null) | (null) | (null)
+ s0.st0_idx | s0.st0_idx | (null) | (null) | (null)
+ s0.st1 | s0.st1 | (null) | (null) | (null)
+ s0.st1_idx | s0.st1_idx | (null) | (null) | (null)
+ s0.st2 | s0.st2 | (null) | (null) | (null)
+ s0.st2_idx | s0.st2_idx | (null) | (null) | (null)
+ st1_idx | public.st1_idx | (null) | (null) | (null)
+ st1_exp | public.st1_exp | (null) | (null) | (null)
+ s1.st0 | s1.st0 | (null) | (null) | (null)
+(14 rows)
+
+SELECT dbms_stats.restore_stats(8);
+ restore_stats
+---------------
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+(6 rows)
+
+SELECT * FROM relations_locked_v;
+ relid | relname | relpages | reltuples | curpages
+------------+----------------+----------+-----------+----------
+ pt0 | public.pt0 | (null) | (null) | (null)
+ pt0_idx | public.pt0_idx | (null) | (null) | (null)
+ st0 | public.st0 | (null) | (null) | (null)
+ st0_idx | public.st0_idx | (null) | (null) | (null)
+ st1 | public.st1 | (null) | (null) | (null)
+ s0.st0 | s0.st0 | 1 | 2 | 1
+ s0.st0_idx | s0.st0_idx | 2 | 2 | 2
+ s0.st1 | s0.st1 | 1 | 3 | 1
+ s0.st1_idx | s0.st1_idx | 2 | 3 | 2
+ s0.st2 | s0.st2 | 1 | 3 | 1
+ s0.st2_idx | s0.st2_idx | 2 | 3 | 2
+ st1_idx | public.st1_idx | (null) | (null) | (null)
+ st1_exp | public.st1_exp | (null) | (null) | (null)
+ s1.st0 | s1.st0 | (null) | (null) | (null)
+(14 rows)
+
+SELECT * FROM columns_locked_v;
+ starelid | staattnum | attname | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+----------+-----------+---------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+------------------+------------+------------+------------
+ st0 | 1 | id | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ st0 | 2 | name | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ st1 | 1 | val | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ st1 | 2 | str | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0.st0 | 1 | id | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2} | (null) | (null) | (null)
+ s0.st0 | 1 | id | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null)
+ s0.st0 | 2 | num | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {10,20} | (null) | (null) | (null)
+ s0.st0 | 2 | num | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {10,20,40,50,60} | (null) | (null) | (null)
+ s0.st1 | 1 | id | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {4,5,6} | (null) | (null) | (null)
+ s0.st1 | 2 | num | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {40,50,60} | (null) | (null) | (null)
+ s0.st2 | 1 | id | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2,3} | (null) | (null) | (null)
+ s0.st2 | 2 | txt | f | 0 | 5 | -1 | 2 | 3 | 0 | 0 | 664 | 664 | 0 | 0 | (null) | {0.5} | (null) | (null) | {1,comment,test} | (null) | (null) | (null)
+ st1_exp | 1 | lower | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s1.st0 | 1 | id | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s1.st0 | 2 | num | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+(15 rows)
+
+-- No.10-7-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT id, unit, comment FROM dbms_stats.backup_history
+ WHERE id = 8;
+ id | unit | comment
+----+------+---------
+ 8 | s | (null)
+(1 row)
+
+SELECT dbms_stats.restore_stats(8);
+ restore_stats
+---------------
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+(6 rows)
+
+SELECT * FROM relations_locked_v;
+ relid | relname | relpages | reltuples | curpages
+------------+------------+----------+-----------+----------
+ s0.st0 | s0.st0 | 1 | 2 | 1
+ s0.st0_idx | s0.st0_idx | 2 | 2 | 2
+ s0.st1 | s0.st1 | 1 | 3 | 1
+ s0.st1_idx | s0.st1_idx | 2 | 3 | 2
+ s0.st2 | s0.st2 | 1 | 3 | 1
+ s0.st2_idx | s0.st2_idx | 2 | 3 | 2
+(6 rows)
+
+SELECT * FROM columns_locked_v;
+ starelid | staattnum | attname | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+----------+-----------+---------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+------------------+------------+------------+------------
+ s0.st0 | 1 | id | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2} | (null) | (null) | (null)
+ s0.st0 | 1 | id | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null)
+ s0.st0 | 2 | num | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {10,20} | (null) | (null) | (null)
+ s0.st0 | 2 | num | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {10,20,40,50,60} | (null) | (null) | (null)
+ s0.st1 | 1 | id | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {4,5,6} | (null) | (null) | (null)
+ s0.st1 | 2 | num | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {40,50,60} | (null) | (null) | (null)
+ s0.st2 | 1 | id | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2,3} | (null) | (null) | (null)
+ s0.st2 | 2 | txt | f | 0 | 5 | -1 | 2 | 3 | 0 | 0 | 664 | 664 | 0 | 0 | (null) | {0.5} | (null) | (null) | {1,comment,test} | (null) | (null) | (null)
+(8 rows)
+
+/*
+ * No.11-1 dbms_stats.lock(relid, attname)
+ */
+-- No.11-1-1
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock(NULL, NULL);
+ERROR: relation is required
+-- No.11-1-2
+ALTER FUNCTION dbms_stats.lock(relid regclass)
+ RENAME TO truth_lock;
+CREATE FUNCTION dbms_stats.lock(relid regclass)
+RETURNS regclass AS
+$$
+BEGIN
+ RAISE NOTICE 'arguments are %', $1;
+ RETURN $1;
+END
+$$
+LANGUAGE plpgsql;
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.st0', NULL);
+NOTICE: arguments are s0.st0
+CONTEXT: PL/pgSQL function "lock" line 11 at RETURN
+ lock
+--------
+ s0.st0
+(1 row)
+
+DROP FUNCTION dbms_stats.lock(relid regclass);
+ALTER FUNCTION dbms_stats.truth_lock(relid regclass)
+ RENAME TO lock;
+-- No.11-1-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock(NULL, 'id');
+ERROR: relation is required
+-- No.11-1-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.st0', 'id');
+ lock
+--------
+ s0.st0
+(1 row)
+
+SELECT * FROM relations_locked_v;
+ relid | relname | relpages | reltuples | curpages
+--------+---------+----------+-----------+----------
+ s0.st0 | s0.st0 | (null) | (null) | (null)
+(1 row)
+
+SELECT * FROM columns_locked_v c;
+ starelid | staattnum | attname | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+----------+-----------+---------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------+------------+------------
+ s0.st0 | 1 | id | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2} | (null) | (null) | (null)
+ s0.st0 | 1 | id | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null)
+(2 rows)
+
+-- No.11-1-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock(0, 'id');
+ERROR: relation "-" does not exist
+-- No.11-1-6
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.st0', 'id');
+ lock
+--------
+ s0.st0
+(1 row)
+
+SELECT * FROM relations_locked_v;
+ relid | relname | relpages | reltuples | curpages
+--------+---------+----------+-----------+----------
+ s0.st0 | s0.st0 | (null) | (null) | (null)
+(1 row)
+
+SELECT * FROM columns_locked_v c;
+ starelid | staattnum | attname | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+----------+-----------+---------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------+------------+------------
+ s0.st0 | 1 | id | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2} | (null) | (null) | (null)
+ s0.st0 | 1 | id | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null)
+(2 rows)
+
+-- No.11-1-7
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('pg_toast.pg_toast_2618', 'id');
+ERROR: "pg_toast.pg_toast_2618" is not a table nor an index
+-- No.11-1-8
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.st0_idx', 'id');
+ERROR: "s0.st0_idx" is not an indexes on expressions
+-- No.11-1-9
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('st1_exp', 'lower');
+ lock
+---------
+ st1_exp
+(1 row)
+
+SELECT * FROM relations_locked_v;
+ relid | relname | relpages | reltuples | curpages
+---------+----------------+----------+-----------+----------
+ st1_exp | public.st1_exp | (null) | (null) | (null)
+(1 row)
+
+SELECT * FROM columns_locked_v c;
+ starelid | staattnum | attname | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+----------+-----------+---------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+------------------------+-------------+-------------+-------------+------------+------------+------------+------------
+ st1_exp | 1 | lower | f | 0 | 5 | 3 | 1 | 3 | 0 | 0 | 98 | 664 | 0 | 0 | {0.3334,0.3333,0.3333} | {0.3332} | (null) | (null) | {1,0,2} | (null) | (null) | (null)
+(1 row)
+
+DELETE FROM dbms_stats._relation_stats_locked;
+-- No.11-1-10
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.ss0', 'id');
+ERROR: "s0.ss0" is not a table nor an index
+-- No.11-1-11
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.sc0', 'id');
+ERROR: "s0.sc0" is not a table nor an index
+-- No.11-1-12
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.sft0', 'id');
+ERROR: "s0.sft0" is not a table nor an index
+-- No.11-1-13
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('pg_catalog.pg_class', 'id');
+ERROR: can not lock statistics of system catalog "pg_class"
+-- No.11-1-14
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.st0', 'dummy');
+ERROR: column "dummy" of "s0.st0" does not exist
+-- No.11-1-15
+DELETE FROM dbms_stats._relation_stats_locked;
+DELETE FROM pg_statistic
+ WHERE starelid = 's0.st0'::regclass;
+SELECT dbms_stats.lock('s0.st0', 'id');
+ERROR: statistic for column "id" of "s0.st0" does not exist
+VACUUM ANALYZE;
+-- No.11-1-16
+DELETE FROM dbms_stats._relation_stats_locked;
+INSERT INTO dbms_stats._relation_stats_locked(
+ relid, relname, relpages, reltuples,
+ curpages)
+ VALUES('s0.st0'::regclass, 's0.st0', 1, 1640,
+ 1);
+SELECT dbms_stats.lock_column_stats('s0.st0','id');
+ lock_column_stats
+-------------------
+ s0.st0
+(1 row)
+
+UPDATE dbms_stats._column_stats_locked
+ SET (stanullfrac, stawidth, stadistinct,
+ stakind1, stakind2, stakind3, stakind4,
+ staop1, staop2, staop3, staop4,
+ stanumbers1, stanumbers2, stanumbers3, stanumbers4,
+ stavalues1, stavalues2, stavalues3, stavalues4
+ ) = (
+ NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL)
+ WHERE starelid = 's0.st0'::regclass;
+SELECT dbms_stats.lock('s0.st0', 'id');
+ lock
+--------
+ s0.st0
+(1 row)
+
+SELECT * FROM relations_locked_v;
+ relid | relname | relpages | reltuples | curpages
+--------+---------+----------+-----------+----------
+ s0.st0 | s0.st0 | 1 | 1640 | 1
+(1 row)
+
+SELECT * FROM columns_locked_v c;
+ starelid | staattnum | attname | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+----------+-----------+---------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------+------------+------------
+ s0.st0 | 1 | id | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2} | (null) | (null) | (null)
+ s0.st0 | 1 | id | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null)
+(2 rows)
+
+-- No.11-1-17
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.st0', 'id');
+ lock
+--------
+ s0.st0
+(1 row)
+
+SELECT * FROM relations_locked_v
+ WHERE relid = 's0.st0'::regclass;
+ relid | relname | relpages | reltuples | curpages
+--------+---------+----------+-----------+----------
+ s0.st0 | s0.st0 | (null) | (null) | (null)
+(1 row)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ s0.st0 | id | f
+ s0.st0 | id | t
+(2 rows)
+
+/*
+ * No.11-2 dbms_stats.lock(relid)
+ */
+-- No.11-2-1
+DELETE FROM dbms_stats._relation_stats_locked;
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+----------+---------------
+ (null) | ExclusiveLock
+(1 row)
+
+SELECT dbms_stats.lock('s0.st0');
+ lock
+--------
+ s0.st0
+(1 row)
+
+SELECT * FROM relations_locked_v;
+ relid | relname | relpages | reltuples | curpages
+--------+---------+----------+-----------+----------
+ s0.st0 | s0.st0 | 1 | 2 | 1
+(1 row)
+
+SELECT * FROM columns_locked_v c;
+ starelid | staattnum | attname | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+----------+-----------+---------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+------------------+------------+------------+------------
+ s0.st0 | 1 | id | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2} | (null) | (null) | (null)
+ s0.st0 | 1 | id | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null)
+ s0.st0 | 2 | num | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {10,20} | (null) | (null) | (null)
+ s0.st0 | 2 | num | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {10,20,40,50,60} | (null) | (null) | (null)
+(4 rows)
+
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+----------------------------------------+--------------------------
+ dbms_stats._column_stats_locked | RowExclusiveLock
+ dbms_stats._column_stats_locked | ShareUpdateExclusiveLock
+ dbms_stats._column_stats_locked_pkey | RowExclusiveLock
+ dbms_stats._relation_stats_locked | RowExclusiveLock
+ dbms_stats._relation_stats_locked | ShareUpdateExclusiveLock
+ dbms_stats._relation_stats_locked_pkey | RowExclusiveLock
+ (null) | ExclusiveLock
+ (null) | ExclusiveLock
+(8 rows)
+
+COMMIT;
+-- No.11-2-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock(NULL);
+ERROR: relation is required
+-- No.11-2-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('0');
+ERROR: relation "-" does not exist
+-- No.11-2-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.st0');
+ lock
+--------
+ s0.st0
+(1 row)
+
+SELECT * FROM relations_locked_v;
+ relid | relname | relpages | reltuples | curpages
+--------+---------+----------+-----------+----------
+ s0.st0 | s0.st0 | 1 | 2 | 1
+(1 row)
+
+SELECT * FROM columns_locked_v c;
+ starelid | staattnum | attname | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+----------+-----------+---------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+------------------+------------+------------+------------
+ s0.st0 | 1 | id | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2} | (null) | (null) | (null)
+ s0.st0 | 1 | id | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null)
+ s0.st0 | 2 | num | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {10,20} | (null) | (null) | (null)
+ s0.st0 | 2 | num | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {10,20,40,50,60} | (null) | (null) | (null)
+(4 rows)
+
+-- No.11-2-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('pg_toast.pg_toast_2618');
+ERROR: can not lock statistics of "pg_toast.pg_toast_2618" with relkind "t"
+HINT: only tables and indexes are supported
+-- No.11-2-6
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.st0_idx');
+ lock
+------------
+ s0.st0_idx
+(1 row)
+
+SELECT * FROM relations_locked_v;
+ relid | relname | relpages | reltuples | curpages
+------------+------------+----------+-----------+----------
+ s0.st0_idx | s0.st0_idx | 2 | 2 | 2
+(1 row)
+
+SELECT * FROM columns_locked_v c;
+ starelid | staattnum | attname | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+----------+-----------+---------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+------------+------------+------------+------------
+(0 rows)
+
+-- No.11-2-7
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.ss0');
+ERROR: can not lock statistics of "s0.ss0" with relkind "S"
+HINT: only tables and indexes are supported
+-- No.11-2-8
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.sc0');
+ERROR: can not lock statistics of "s0.sc0" with relkind "c"
+HINT: only tables and indexes are supported
+-- No.11-2-9
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.sft0');
+ERROR: can not lock statistics of "s0.sft0" with relkind "f"
+HINT: only tables and indexes are supported
+-- No.11-2-10
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('pg_catalog.pg_class');
+ERROR: can not lock statistics of system catalog "pg_class"
+-- No.11-2-11
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_table_stats('s0.st0');
+ lock_table_stats
+------------------
+ s0.st0
+(1 row)
+
+UPDATE dbms_stats._relation_stats_locked
+ SET (relpages, reltuples,
+ curpages)
+ = (NULL, NULL, NULL
+ )
+ WHERE relid = 's0.st0'::regclass;
+SELECT dbms_stats.lock('s0.st0');
+ lock
+--------
+ s0.st0
+(1 row)
+
+SELECT * FROM relations_locked_v;
+ relid | relname | relpages | reltuples | curpages
+--------+---------+----------+-----------+----------
+ s0.st0 | s0.st0 | 1 | 2 | 1
+(1 row)
+
+SELECT * FROM columns_locked_v c;
+ starelid | staattnum | attname | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+----------+-----------+---------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+------------------+------------+------------+------------
+ s0.st0 | 1 | id | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2} | (null) | (null) | (null)
+ s0.st0 | 1 | id | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null)
+ s0.st0 | 2 | num | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {10,20} | (null) | (null) | (null)
+ s0.st0 | 2 | num | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {10,20,40,50,60} | (null) | (null) | (null)
+(4 rows)
+
+-- No.11-2-12
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.st0');
+ lock
+--------
+ s0.st0
+(1 row)
+
+SELECT * FROM relations_locked_v;
+ relid | relname | relpages | reltuples | curpages
+--------+---------+----------+-----------+----------
+ s0.st0 | s0.st0 | 1 | 2 | 1
+(1 row)
+
+SELECT * FROM columns_locked_v c;
+ starelid | staattnum | attname | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+----------+-----------+---------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+------------------+------------+------------+------------
+ s0.st0 | 1 | id | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2} | (null) | (null) | (null)
+ s0.st0 | 1 | id | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null)
+ s0.st0 | 2 | num | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {10,20} | (null) | (null) | (null)
+ s0.st0 | 2 | num | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {10,20,40,50,60} | (null) | (null) | (null)
+(4 rows)
+
+/*
+ * Stab function dbms_stats.lock
+ */
+ALTER FUNCTION dbms_stats.lock(relid regclass)
+ RENAME TO truth_lock;
+CREATE FUNCTION dbms_stats.lock(relid regclass)
+RETURNS regclass AS
+$$
+BEGIN
+ RAISE NOTICE 'arguments are %', $1;
+ RETURN $1;
+END
+$$
+LANGUAGE plpgsql;
+ALTER FUNCTION dbms_stats.lock(relid regclass, attname text)
+ RENAME TO truth_lock;
+CREATE FUNCTION dbms_stats.lock(
+ relid regclass,
+ attname text)
+RETURNS regclass AS
+$$
+BEGIN
+ RAISE NOTICE 'arguments are %, %', $1, $2;
+ RETURN $1;
+END
+$$
+LANGUAGE plpgsql;
+/*
+ * No.12-1 dbms_stats.lock_database_stats
+ */
+-- No.12-1-1
+SELECT dbms_stats.lock_database_stats();
+NOTICE: arguments are pt0
+CONTEXT: SQL function "lock_database_stats" statement 1
+NOTICE: arguments are pt0_idx
+CONTEXT: SQL function "lock_database_stats" statement 1
+NOTICE: arguments are st0
+CONTEXT: SQL function "lock_database_stats" statement 1
+NOTICE: arguments are st0_idx
+CONTEXT: SQL function "lock_database_stats" statement 1
+NOTICE: arguments are st1
+CONTEXT: SQL function "lock_database_stats" statement 1
+NOTICE: arguments are s0.st0
+CONTEXT: SQL function "lock_database_stats" statement 1
+NOTICE: arguments are s0.st0_idx
+CONTEXT: SQL function "lock_database_stats" statement 1
+NOTICE: arguments are s0.st1
+CONTEXT: SQL function "lock_database_stats" statement 1
+NOTICE: arguments are s0.st1_idx
+CONTEXT: SQL function "lock_database_stats" statement 1
+NOTICE: arguments are s0.st2
+CONTEXT: SQL function "lock_database_stats" statement 1
+NOTICE: arguments are s0.st2_idx
+CONTEXT: SQL function "lock_database_stats" statement 1
+NOTICE: arguments are st1_idx
+CONTEXT: SQL function "lock_database_stats" statement 1
+NOTICE: arguments are st1_exp
+CONTEXT: SQL function "lock_database_stats" statement 1
+NOTICE: arguments are s1.st0
+CONTEXT: SQL function "lock_database_stats" statement 1
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+/*
+ * No.12-2 dbms_stats.lock_schema_stats
+ */
+-- No.12-2-1
+SELECT dbms_stats.lock_schema_stats('s0');
+NOTICE: arguments are s0.st0
+CONTEXT: PL/pgSQL function "lock_schema_stats" line 10 at RETURN QUERY
+NOTICE: arguments are s0.st0_idx
+CONTEXT: PL/pgSQL function "lock_schema_stats" line 10 at RETURN QUERY
+NOTICE: arguments are s0.st1
+CONTEXT: PL/pgSQL function "lock_schema_stats" line 10 at RETURN QUERY
+NOTICE: arguments are s0.st1_idx
+CONTEXT: PL/pgSQL function "lock_schema_stats" line 10 at RETURN QUERY
+NOTICE: arguments are s0.st2
+CONTEXT: PL/pgSQL function "lock_schema_stats" line 10 at RETURN QUERY
+NOTICE: arguments are s0.st2_idx
+CONTEXT: PL/pgSQL function "lock_schema_stats" line 10 at RETURN QUERY
+ lock_schema_stats
+-------------------
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+(6 rows)
+
+-- No.12-2-2
+SELECT dbms_stats.lock_schema_stats('s00');
+ERROR: schema "s00" does not exist
+-- No.12-2-3
+SELECT dbms_stats.lock_schema_stats('pg_catalog');
+ERROR: can not lock statistics of relation in system schema "pg_catalog"
+/*
+ * No.12-3 dbms_stats.lock_table_stats(regclass)
+ */
+-- No.12-3-1
+SELECT dbms_stats.lock_table_stats('s0.st0');
+NOTICE: arguments are s0.st0
+CONTEXT: SQL function "lock_table_stats" statement 1
+ lock_table_stats
+------------------
+ s0.st0
+(1 row)
+
+-- No.12-3-2
+SELECT dbms_stats.lock_table_stats('st0');
+NOTICE: arguments are st0
+CONTEXT: SQL function "lock_table_stats" statement 1
+ lock_table_stats
+------------------
+ st0
+(1 row)
+
+-- No.12-3-3
+SELECT dbms_stats.lock_table_stats('s00.s0');
+ERROR: schema "s00" does not exist
+LINE 1: SELECT dbms_stats.lock_table_stats('s00.s0');
+ ^
+/*
+ * No.12-4 dbms_stats.lock_table_stats(schemaname, tablename)
+ */
+-- No.12-4-1
+SELECT dbms_stats.lock_table_stats('s0', 'st0');
+NOTICE: arguments are s0.st0
+CONTEXT: SQL function "lock_table_stats" statement 1
+ lock_table_stats
+------------------
+ s0.st0
+(1 row)
+
+/*
+ * No.12-5 dbms_stats.lock_column_stats(regclass, attname)
+ */
+-- No.12-5-1
+SELECT dbms_stats.lock_column_stats('s0.st0', 'id');
+NOTICE: arguments are s0.st0, id
+CONTEXT: SQL function "lock_column_stats" statement 1
+ lock_column_stats
+-------------------
+ s0.st0
+(1 row)
+
+-- No.12-5-2
+SELECT dbms_stats.lock_column_stats('st0', 'id');
+NOTICE: arguments are st0, id
+CONTEXT: SQL function "lock_column_stats" statement 1
+ lock_column_stats
+-------------------
+ st0
+(1 row)
+
+-- No.12-5-3
+SELECT dbms_stats.lock_column_stats('s00.s0', 'id');
+ERROR: schema "s00" does not exist
+LINE 1: SELECT dbms_stats.lock_column_stats('s00.s0', 'id');
+ ^
+/*
+ * No.12-6 dbms_stats.lock_column_stats(schemaname, tablename, int2)
+ */
+-- No.12-6-1
+SELECT dbms_stats.lock_column_stats('s0', 'st0', 'id');
+NOTICE: arguments are s0.st0, id
+CONTEXT: SQL function "lock_column_stats" statement 1
+ lock_column_stats
+-------------------
+ s0.st0
+(1 row)
+
+/*
+ * Delete Stab function lock
+ */
+DROP FUNCTION dbms_stats.lock(relid regclass);
+ALTER FUNCTION dbms_stats.truth_lock(relid regclass)
+ RENAME TO lock;
+DROP FUNCTION dbms_stats.lock(relid regclass, attname text);
+ALTER FUNCTION dbms_stats.truth_lock(relid regclass, attname text)
+ RENAME TO lock;
+/*
+ * No.13-1 dbms_stats.unlock
+ */
+-- No.13-1-1
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+ id | time | unit | comment
+----+-------------------------------------+------+---------
+ 1 | Wed Feb 29 23:59:56.999999 2012 PST | d | (null)
+ 2 | Wed Feb 29 23:59:57 2012 PST | d | (null)
+ 3 | Wed Feb 29 23:59:57.000001 2012 PST | t | (null)
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(8 rows)
+
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 24
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+ count
+-------
+ 35
+(1 row)
+
+SELECT dbms_stats.unlock();
+ unlock
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+ id | time | unit | comment
+----+-------------------------------------+------+---------
+ 1 | Wed Feb 29 23:59:56.999999 2012 PST | d | (null)
+ 2 | Wed Feb 29 23:59:57 2012 PST | d | (null)
+ 3 | Wed Feb 29 23:59:57.000001 2012 PST | t | (null)
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(8 rows)
+
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 24
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+ count
+-------
+ 35
+(1 row)
+
+-- No.13-1-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT dbms_stats.unlock();
+ unlock
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+-- No.13-1-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+DELETE FROM dbms_stats._column_stats_locked;
+SELECT dbms_stats.unlock();
+ unlock
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+-- No.13-1-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.unlock();
+ unlock
+--------
+(0 rows)
+
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+-- No.13-1-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+SELECT dbms_stats.unlock('s0.st0');
+ unlock
+--------
+ s0.st0
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(13 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(6 rows)
+
+-- No.13-1-6
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+SELECT dbms_stats.unlock('st0');
+ unlock
+--------
+ st0
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(13 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(6 rows)
+
+-- No.13-1-7
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+ count
+-------
+ 14
+(1 row)
+
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+ count
+-------
+ 15
+(1 row)
+
+SELECT dbms_stats.unlock('s00.s0');
+ERROR: schema "s00" does not exist
+LINE 1: SELECT dbms_stats.unlock('s00.s0');
+ ^
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+ count
+-------
+ 14
+(1 row)
+
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+ count
+-------
+ 15
+(1 row)
+
+-- No.13-1-8
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT dbms_stats.unlock('s0.st0', 'id');
+ unlock
+--------
+ s0.st0
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(13 rows)
+
+-- No.13-1-9
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT dbms_stats.unlock('s0.st0', 'dummy');
+ERROR: column "dummy" of "s0.st0" does not exist
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+-- No.13-1-10
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+DELETE FROM dbms_stats._column_stats_locked;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT dbms_stats.unlock('s0.st0', 'id');
+ unlock
+--------
+ s0.st0
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, staattnum FROM dbms_stats._column_stats_locked
+ GROUP BY starelid, staattnum
+ ORDER BY starelid;
+ starelid | staattnum
+----------+-----------
+(0 rows)
+
+-- No.13-1-11
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, staattnum FROM dbms_stats._column_stats_locked
+ GROUP BY starelid, staattnum
+ ORDER BY starelid;
+ starelid | staattnum
+----------+-----------
+ st0 | 1
+ st0 | 2
+ st1 | 1
+ st1 | 2
+ s0.st0 | 1
+ s0.st0 | 2
+ s0.st1 | 1
+ s0.st1 | 2
+ s0.st2 | 1
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 1
+ s1.st0 | 2
+(13 rows)
+
+SELECT dbms_stats.unlock(NULL, 'id');
+ERROR: relation is required
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, staattnum FROM dbms_stats._column_stats_locked
+ GROUP BY starelid, staattnum
+ ORDER BY starelid;
+ starelid | staattnum
+----------+-----------
+ st0 | 1
+ st0 | 2
+ st1 | 1
+ st1 | 2
+ s0.st0 | 1
+ s0.st0 | 2
+ s0.st1 | 1
+ s0.st1 | 2
+ s0.st2 | 1
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 1
+ s1.st0 | 2
+(13 rows)
+
+-- No.13-1-12
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, staattnum FROM dbms_stats._column_stats_locked
+ GROUP BY starelid, staattnum
+ ORDER BY starelid;
+ starelid | staattnum
+----------+-----------
+ st0 | 1
+ st0 | 2
+ st1 | 1
+ st1 | 2
+ s0.st0 | 1
+ s0.st0 | 2
+ s0.st1 | 1
+ s0.st1 | 2
+ s0.st2 | 1
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 1
+ s1.st0 | 2
+(13 rows)
+
+SELECT dbms_stats.unlock('s0.st0', NULL);
+ unlock
+--------
+ s0.st0
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(13 rows)
+
+SELECT starelid::regclass, staattnum FROM dbms_stats._column_stats_locked
+ GROUP BY starelid, staattnum
+ ORDER BY starelid;
+ starelid | staattnum
+----------+-----------
+ st0 | 1
+ st0 | 2
+ st1 | 1
+ st1 | 2
+ s0.st1 | 1
+ s0.st1 | 2
+ s0.st2 | 1
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 1
+ s1.st0 | 2
+(11 rows)
+
+-- No.13-1-13
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+ count
+-------
+ 14
+(1 row)
+
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+ count
+-------
+ 15
+(1 row)
+
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+----------+---------------
+ (null) | ExclusiveLock
+(1 row)
+
+SELECT dbms_stats.unlock();
+ unlock
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+-----------------------------------+--------------------------
+ dbms_stats._column_stats_locked | RowExclusiveLock
+ dbms_stats._column_stats_locked | ShareUpdateExclusiveLock
+ dbms_stats._relation_stats_locked | RowExclusiveLock
+ dbms_stats._relation_stats_locked | ShareUpdateExclusiveLock
+ (null) | ExclusiveLock
+ (null) | ExclusiveLock
+(6 rows)
+
+COMMIT;
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+/*
+ * No.14-1 dbms_stats.unlock_database_stats
+ */
+-- No.14-1-1
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+ id | time | unit | comment
+----+-------------------------------------+------+---------
+ 1 | Wed Feb 29 23:59:56.999999 2012 PST | d | (null)
+ 2 | Wed Feb 29 23:59:57 2012 PST | d | (null)
+ 3 | Wed Feb 29 23:59:57.000001 2012 PST | t | (null)
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(8 rows)
+
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 24
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+ count
+-------
+ 35
+(1 row)
+
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+ count
+-------
+ 14
+(1 row)
+
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+ count
+-------
+ 15
+(1 row)
+
+SELECT dbms_stats.unlock_database_stats();
+ unlock_database_stats
+-----------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+ id | time | unit | comment
+----+-------------------------------------+------+---------
+ 1 | Wed Feb 29 23:59:56.999999 2012 PST | d | (null)
+ 2 | Wed Feb 29 23:59:57 2012 PST | d | (null)
+ 3 | Wed Feb 29 23:59:57.000001 2012 PST | t | (null)
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(8 rows)
+
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 24
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+ count
+-------
+ 35
+(1 row)
+
+-- No.14-1-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+DELETE FROM dbms_stats._column_stats_locked;
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+ count
+-------
+ 14
+(1 row)
+
+SELECT dbms_stats.unlock_database_stats();
+ unlock_database_stats
+-----------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+-- No.14-1-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.unlock_database_stats();
+ unlock_database_stats
+-----------------------
+(0 rows)
+
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+-- No.14-1-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+ count
+-------
+ 14
+(1 row)
+
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+ count
+-------
+ 15
+(1 row)
+
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+----------+---------------
+ (null) | ExclusiveLock
+(1 row)
+
+SELECT dbms_stats.unlock_database_stats();
+ unlock_database_stats
+-----------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+-----------------------------------+--------------------------
+ dbms_stats._column_stats_locked | RowExclusiveLock
+ dbms_stats._column_stats_locked | ShareUpdateExclusiveLock
+ dbms_stats._relation_stats_locked | RowExclusiveLock
+ dbms_stats._relation_stats_locked | ShareUpdateExclusiveLock
+ (null) | ExclusiveLock
+ (null) | ExclusiveLock
+(6 rows)
+
+COMMIT;
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+/*
+ * No.14-2 dbms_stats.unlock_schema_stats
+ */
+-- No.14-2-1
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+ id | time | unit | comment
+----+-------------------------------------+------+---------
+ 1 | Wed Feb 29 23:59:56.999999 2012 PST | d | (null)
+ 2 | Wed Feb 29 23:59:57 2012 PST | d | (null)
+ 3 | Wed Feb 29 23:59:57.000001 2012 PST | t | (null)
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(8 rows)
+
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 24
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+ count
+-------
+ 35
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+SELECT dbms_stats.unlock_schema_stats('s0');
+ unlock_schema_stats
+---------------------
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+(6 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+---------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ st1_idx
+ st1_exp
+ s1.st0
+(8 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(4 rows)
+
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+ id | time | unit | comment
+----+-------------------------------------+------+---------
+ 1 | Wed Feb 29 23:59:56.999999 2012 PST | d | (null)
+ 2 | Wed Feb 29 23:59:57 2012 PST | d | (null)
+ 3 | Wed Feb 29 23:59:57.000001 2012 PST | t | (null)
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(8 rows)
+
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 24
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+ count
+-------
+ 35
+(1 row)
+
+-- No.14-2-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+DELETE FROM dbms_stats._column_stats_locked;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+(0 rows)
+
+SELECT dbms_stats.unlock_schema_stats('s0');
+ unlock_schema_stats
+---------------------
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+(6 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+---------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ st1_idx
+ st1_exp
+ s1.st0
+(8 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+(0 rows)
+
+-- No.14-2-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+-------
+(0 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+(0 rows)
+
+SELECT dbms_stats.unlock_schema_stats('s0');
+ unlock_schema_stats
+---------------------
+(0 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+-------
+(0 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+(0 rows)
+
+-- No.14-2-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+SELECT dbms_stats.unlock_schema_stats('s0');
+ unlock_schema_stats
+---------------------
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+(6 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+---------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ st1_idx
+ st1_exp
+ s1.st0
+(8 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(4 rows)
+
+-- No.14-2-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+SELECT dbms_stats.unlock_schema_stats('s00');
+ERROR: schema "s00" does not exist
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+-- No.14-2-6
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+SELECT dbms_stats.unlock_schema_stats('pg_catalog');
+ERROR: can not unlock statistics of relation in system schema "pg_catalog"
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+-- No.14-2-7
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+SELECT dbms_stats.unlock_schema_stats(NULL);
+ unlock_schema_stats
+---------------------
+(0 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+-- No.14-2-8
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+----------+---------------
+ (null) | ExclusiveLock
+(1 row)
+
+SELECT dbms_stats.unlock_schema_stats('s0');
+ unlock_schema_stats
+---------------------
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+(6 rows)
+
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+-----------------------------------+--------------------------
+ dbms_stats._column_stats_locked | RowExclusiveLock
+ dbms_stats._column_stats_locked | ShareUpdateExclusiveLock
+ dbms_stats._relation_stats_locked | RowExclusiveLock
+ dbms_stats._relation_stats_locked | ShareUpdateExclusiveLock
+ (null) | ExclusiveLock
+ (null) | ExclusiveLock
+(6 rows)
+
+COMMIT;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+---------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ st1_idx
+ st1_exp
+ s1.st0
+(8 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(4 rows)
+
+/*
+ * No.14-3 dbms_stats.unlock_table_stats(regclass)
+ */
+-- No.14-3-1
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+ id | time | unit | comment
+----+-------------------------------------+------+---------
+ 1 | Wed Feb 29 23:59:56.999999 2012 PST | d | (null)
+ 2 | Wed Feb 29 23:59:57 2012 PST | d | (null)
+ 3 | Wed Feb 29 23:59:57.000001 2012 PST | t | (null)
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(8 rows)
+
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 24
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+ count
+-------
+ 35
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+SELECT dbms_stats.unlock_table_stats('s0.st0');
+ unlock_table_stats
+--------------------
+ s0.st0
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(13 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(6 rows)
+
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+ id | time | unit | comment
+----+-------------------------------------+------+---------
+ 1 | Wed Feb 29 23:59:56.999999 2012 PST | d | (null)
+ 2 | Wed Feb 29 23:59:57 2012 PST | d | (null)
+ 3 | Wed Feb 29 23:59:57.000001 2012 PST | t | (null)
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(8 rows)
+
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 24
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+ count
+-------
+ 35
+(1 row)
+
+-- No.14-3-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+DELETE FROM dbms_stats._column_stats_locked;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+(0 rows)
+
+SELECT dbms_stats.unlock_table_stats('s0.st0');
+ unlock_table_stats
+--------------------
+ s0.st0
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(13 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+(0 rows)
+
+-- No.14-3-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+-------
+(0 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+(0 rows)
+
+SELECT dbms_stats.unlock_table_stats('s0.st0');
+ unlock_table_stats
+--------------------
+(0 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+-------
+(0 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+(0 rows)
+
+-- No.14-3-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+SELECT dbms_stats.unlock_table_stats('s0.st0');
+ unlock_table_stats
+--------------------
+ s0.st0
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(13 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(6 rows)
+
+-- No.14-3-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+SELECT dbms_stats.unlock_table_stats('st0');
+ unlock_table_stats
+--------------------
+ st0
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(13 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(6 rows)
+
+-- No.14-3-6
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+SELECT dbms_stats.unlock_table_stats('s00.s0');
+ERROR: schema "s00" does not exist
+LINE 1: SELECT dbms_stats.unlock_table_stats('s00.s0');
+ ^
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+-- No.14-3-7
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+SELECT dbms_stats.unlock_table_stats(NULL);
+ unlock_table_stats
+--------------------
+(0 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+-- No.14-3-8
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+----------+---------------
+ (null) | ExclusiveLock
+(1 row)
+
+SELECT dbms_stats.unlock_table_stats('s0.st0');
+ unlock_table_stats
+--------------------
+ s0.st0
+(1 row)
+
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+----------------------------------------+--------------------------
+ dbms_stats._column_stats_locked | RowExclusiveLock
+ dbms_stats._column_stats_locked | ShareUpdateExclusiveLock
+ dbms_stats._relation_stats_locked | RowExclusiveLock
+ dbms_stats._relation_stats_locked | ShareUpdateExclusiveLock
+ dbms_stats._relation_stats_locked_pkey | RowExclusiveLock
+ (null) | ExclusiveLock
+ (null) | ExclusiveLock
+(7 rows)
+
+COMMIT;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(13 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(6 rows)
+
+/*
+ * No.14-4 dbms_stats.unlock_table_stats(schemaname, tablename)
+ */
+-- No.14-4-1
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+ id | time | unit | comment
+----+-------------------------------------+------+---------
+ 1 | Wed Feb 29 23:59:56.999999 2012 PST | d | (null)
+ 2 | Wed Feb 29 23:59:57 2012 PST | d | (null)
+ 3 | Wed Feb 29 23:59:57.000001 2012 PST | t | (null)
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(8 rows)
+
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 24
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+ count
+-------
+ 35
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+SELECT dbms_stats.unlock_table_stats('s0','st0');
+ unlock_table_stats
+--------------------
+ s0.st0
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(13 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(6 rows)
+
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+ id | time | unit | comment
+----+-------------------------------------+------+---------
+ 1 | Wed Feb 29 23:59:56.999999 2012 PST | d | (null)
+ 2 | Wed Feb 29 23:59:57 2012 PST | d | (null)
+ 3 | Wed Feb 29 23:59:57.000001 2012 PST | t | (null)
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(8 rows)
+
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 24
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+ count
+-------
+ 35
+(1 row)
+
+-- No.14-4-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+DELETE FROM dbms_stats._column_stats_locked;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+(0 rows)
+
+SELECT dbms_stats.unlock_table_stats('s0', 'st0');
+ unlock_table_stats
+--------------------
+ s0.st0
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(13 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+(0 rows)
+
+-- No.14-4-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+-------
+(0 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+(0 rows)
+
+SELECT dbms_stats.unlock_table_stats('s0', 'st0');
+ unlock_table_stats
+--------------------
+(0 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+-------
+(0 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+(0 rows)
+
+-- No.14-4-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+SELECT dbms_stats.unlock_table_stats('s0', 'st0');
+ unlock_table_stats
+--------------------
+ s0.st0
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(13 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(6 rows)
+
+-- No.14-4-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+SELECT dbms_stats.unlock_table_stats('s00', 's0');
+ERROR: schema "s00" does not exist
+CONTEXT: SQL function "unlock_table_stats" statement 3
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+-- No.14-4-6
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+SELECT dbms_stats.unlock_table_stats(NULL, 'st0');
+ unlock_table_stats
+--------------------
+(0 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+-- No.14-4-7
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+SELECT dbms_stats.unlock_table_stats('s0', NULL);
+ unlock_table_stats
+--------------------
+(0 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+-- No.14-4-8
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+----------+---------------
+ (null) | ExclusiveLock
+(1 row)
+
+SELECT dbms_stats.unlock_table_stats('s0', 'st0');
+ unlock_table_stats
+--------------------
+ s0.st0
+(1 row)
+
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+----------------------------------------+--------------------------
+ dbms_stats._column_stats_locked | RowExclusiveLock
+ dbms_stats._column_stats_locked | ShareUpdateExclusiveLock
+ dbms_stats._relation_stats_locked | RowExclusiveLock
+ dbms_stats._relation_stats_locked | ShareUpdateExclusiveLock
+ dbms_stats._relation_stats_locked_pkey | RowExclusiveLock
+ (null) | ExclusiveLock
+ (null) | ExclusiveLock
+(7 rows)
+
+COMMIT;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(13 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(6 rows)
+
+/*
+ * No.14-5 dbms_stats.unlock_column_stats(regclass, attname)
+ */
+-- No.14-5-1
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+ id | time | unit | comment
+----+-------------------------------------+------+---------
+ 1 | Wed Feb 29 23:59:56.999999 2012 PST | d | (null)
+ 2 | Wed Feb 29 23:59:57 2012 PST | d | (null)
+ 3 | Wed Feb 29 23:59:57.000001 2012 PST | t | (null)
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(8 rows)
+
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 24
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+ count
+-------
+ 35
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT dbms_stats.unlock_column_stats('s0.st0', 'id');
+ unlock_column_stats
+---------------------
+ s0.st0
+(1 row)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(13 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+ id | time | unit | comment
+----+-------------------------------------+------+---------
+ 1 | Wed Feb 29 23:59:56.999999 2012 PST | d | (null)
+ 2 | Wed Feb 29 23:59:57 2012 PST | d | (null)
+ 3 | Wed Feb 29 23:59:57.000001 2012 PST | t | (null)
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(8 rows)
+
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 24
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+ count
+-------
+ 35
+(1 row)
+
+-- No.14-5-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+DELETE FROM dbms_stats._column_stats_locked;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT dbms_stats.unlock_column_stats('s0.st0', 'id');
+ unlock_column_stats
+---------------------
+ s0.st0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+-- No.14-5-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT dbms_stats.unlock_column_stats('s0.st0', 'id');
+ unlock_column_stats
+---------------------
+ s0.st0
+(1 row)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(13 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+-- No.14-5-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT dbms_stats.unlock_column_stats('st0', 'id');
+ unlock_column_stats
+---------------------
+ st0
+(1 row)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(14 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+-- No.14-5-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT dbms_stats.unlock_column_stats('s0.st0', 'dummy');
+ERROR: column "dummy" of "s0.st0" does not exist
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+-- No.14-5-6
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT dbms_stats.unlock_column_stats('s00.s0', 'id');
+ERROR: schema "s00" does not exist
+LINE 1: SELECT dbms_stats.unlock_column_stats('s00.s0', 'id');
+ ^
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+-- No.14-5-7
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT dbms_stats.unlock_column_stats(NULL, 'id');
+ unlock_column_stats
+---------------------
+(0 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+-- No.14-5-8
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT dbms_stats.unlock_column_stats('s0.st0', NULL);
+ unlock_column_stats
+---------------------
+(0 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+-- No.14-5-9
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+----------+---------------
+ (null) | ExclusiveLock
+(1 row)
+
+SELECT dbms_stats.unlock_column_stats('s0.st0', 'id');
+ unlock_column_stats
+---------------------
+ s0.st0
+(1 row)
+
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+-----------------------------------+--------------------------
+ dbms_stats._column_stats_locked | RowExclusiveLock
+ dbms_stats._column_stats_locked | ShareUpdateExclusiveLock
+ dbms_stats._relation_stats_locked | ShareUpdateExclusiveLock
+ (null) | ExclusiveLock
+ (null) | ExclusiveLock
+(5 rows)
+
+COMMIT;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(13 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+/*
+ * No.14-6 dbms_stats.unlock_column_stats(schemaname, tablename, attname)
+ */
+-- No.14-6-1
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+ id | time | unit | comment
+----+-------------------------------------+------+---------
+ 1 | Wed Feb 29 23:59:56.999999 2012 PST | d | (null)
+ 2 | Wed Feb 29 23:59:57 2012 PST | d | (null)
+ 3 | Wed Feb 29 23:59:57.000001 2012 PST | t | (null)
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(8 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT dbms_stats.unlock_column_stats('s0', 'st0', 'id');
+ unlock_column_stats
+---------------------
+ s0.st0
+(1 row)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(13 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+ id | time | unit | comment
+----+-------------------------------------+------+---------
+ 1 | Wed Feb 29 23:59:56.999999 2012 PST | d | (null)
+ 2 | Wed Feb 29 23:59:57 2012 PST | d | (null)
+ 3 | Wed Feb 29 23:59:57.000001 2012 PST | t | (null)
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(8 rows)
+
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 24
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+ count
+-------
+ 35
+(1 row)
+
+-- No.14-6-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+DELETE FROM dbms_stats._column_stats_locked;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT dbms_stats.unlock_column_stats('s0', 'st0', 'id');
+ unlock_column_stats
+---------------------
+ s0.st0
+(1 row)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+(0 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+-- No.14-6-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT dbms_stats.unlock_column_stats('s0', 'st0', 'id');
+ unlock_column_stats
+---------------------
+ s0.st0
+(1 row)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(13 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+-- No.14-6-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT dbms_stats.unlock_column_stats('s0', 'st0', 'dummy');
+ERROR: column "dummy" of "s0.st0" does not exist
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+-- No.14-6-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT dbms_stats.unlock_column_stats(NULL, 'st0', 'id');
+ unlock_column_stats
+---------------------
+(0 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+-- No.14-6-6
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT dbms_stats.unlock_column_stats('s0', NULL, 'id');
+ unlock_column_stats
+---------------------
+(0 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+-- No.14-6-7
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT dbms_stats.unlock_column_stats('s0', 'st0', NULL);
+ unlock_column_stats
+---------------------
+(0 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+-- No.14-6-8
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+----------+---------------
+ (null) | ExclusiveLock
+(1 row)
+
+SELECT dbms_stats.unlock_column_stats('s0', 'st0', 'id');
+ unlock_column_stats
+---------------------
+ s0.st0
+(1 row)
+
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+-----------------------------------+--------------------------
+ dbms_stats._column_stats_locked | RowExclusiveLock
+ dbms_stats._column_stats_locked | ShareUpdateExclusiveLock
+ dbms_stats._relation_stats_locked | ShareUpdateExclusiveLock
+ (null) | ExclusiveLock
+ (null) | ExclusiveLock
+(5 rows)
+
+COMMIT;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(13 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
--- /dev/null
+\pset null '(null)'
+/*
+ * No.2-1 table definitions.
+ */
+-- No.2-1-1
+\d dbms_stats.backup_history
+ Table "dbms_stats.backup_history"
+ Column | Type | Modifiers
+---------+--------------------------+------------------------------------------------------------------------
+ id | bigint | not null default nextval('dbms_stats.backup_history_id_seq'::regclass)
+ time | timestamp with time zone | not null
+ unit | character(1) | not null
+ comment | text |
+Indexes:
+ "backup_history_pkey" PRIMARY KEY, btree (id)
+Referenced by:
+ TABLE "dbms_stats.column_stats_backup" CONSTRAINT "column_stats_backup_id_fkey" FOREIGN KEY (id) REFERENCES dbms_stats.backup_history(id) ON DELETE CASCADE
+ TABLE "dbms_stats.relation_stats_backup" CONSTRAINT "relation_stats_backup_id_fkey" FOREIGN KEY (id) REFERENCES dbms_stats.backup_history(id) ON DELETE CASCADE
+
+-- No.2-1-2
+\d dbms_stats.column_stats_backup
+ Table "dbms_stats.column_stats_backup"
+ Column | Type | Modifiers
+-------------+---------------------+-----------
+ id | bigint | not null
+ statypid | oid | not null
+ starelid | oid | not null
+ staattnum | smallint | not null
+ stainherit | boolean | not null
+ stanullfrac | real | not null
+ stawidth | integer | not null
+ stadistinct | real | not null
+ stakind1 | smallint | not null
+ stakind2 | smallint | not null
+ stakind3 | smallint | not null
+ stakind4 | smallint | not null
+ stakind5 | smallint | not null
+ staop1 | oid | not null
+ staop2 | oid | not null
+ staop3 | oid | not null
+ staop4 | oid | not null
+ staop5 | oid | not null
+ stanumbers1 | real[] |
+ stanumbers2 | real[] |
+ stanumbers3 | real[] |
+ stanumbers4 | real[] |
+ stanumbers5 | real[] |
+ stavalues1 | dbms_stats.anyarray |
+ stavalues2 | dbms_stats.anyarray |
+ stavalues3 | dbms_stats.anyarray |
+ stavalues4 | dbms_stats.anyarray |
+ stavalues5 | dbms_stats.anyarray |
+Indexes:
+ "column_stats_backup_pkey" PRIMARY KEY, btree (id, starelid, staattnum, stainherit)
+Foreign-key constraints:
+ "column_stats_backup_id_fkey" FOREIGN KEY (id) REFERENCES dbms_stats.backup_history(id) ON DELETE CASCADE
+ "column_stats_backup_id_fkey1" FOREIGN KEY (id, starelid) REFERENCES dbms_stats.relation_stats_backup(id, relid) ON DELETE CASCADE
+
+-- No.2-1-3
+\d dbms_stats._column_stats_locked
+ Table "dbms_stats._column_stats_locked"
+ Column | Type | Modifiers
+-------------+---------------------+-----------
+ starelid | oid | not null
+ staattnum | smallint | not null
+ stainherit | boolean | not null
+ stanullfrac | real |
+ stawidth | integer |
+ stadistinct | real |
+ stakind1 | smallint |
+ stakind2 | smallint |
+ stakind3 | smallint |
+ stakind4 | smallint |
+ stakind5 | smallint |
+ staop1 | oid |
+ staop2 | oid |
+ staop3 | oid |
+ staop4 | oid |
+ staop5 | oid |
+ stanumbers1 | real[] |
+ stanumbers2 | real[] |
+ stanumbers3 | real[] |
+ stanumbers4 | real[] |
+ stanumbers5 | real[] |
+ stavalues1 | dbms_stats.anyarray |
+ stavalues2 | dbms_stats.anyarray |
+ stavalues3 | dbms_stats.anyarray |
+ stavalues4 | dbms_stats.anyarray |
+ stavalues5 | dbms_stats.anyarray |
+Indexes:
+ "_column_stats_locked_pkey" PRIMARY KEY, btree (starelid, staattnum, stainherit)
+Foreign-key constraints:
+ "_column_stats_locked_starelid_fkey" FOREIGN KEY (starelid) REFERENCES dbms_stats._relation_stats_locked(relid) ON DELETE CASCADE
+Triggers:
+ invalidate_column_cache BEFORE INSERT OR DELETE OR UPDATE ON dbms_stats._column_stats_locked FOR EACH ROW EXECUTE PROCEDURE dbms_stats.invalidate_column_cache()
+
+-- No.2-1-4
+\d dbms_stats.relation_stats_backup
+ Table "dbms_stats.relation_stats_backup"
+ Column | Type | Modifiers
+------------------+--------------------------+-----------
+ id | bigint | not null
+ relid | oid | not null
+ relname | text | not null
+ relpages | integer | not null
+ reltuples | real | not null
+ relallvisible | integer | not null
+ curpages | integer | not null
+ last_analyze | timestamp with time zone |
+ last_autoanalyze | timestamp with time zone |
+Indexes:
+ "relation_stats_backup_pkey" PRIMARY KEY, btree (id, relid)
+Foreign-key constraints:
+ "relation_stats_backup_id_fkey" FOREIGN KEY (id) REFERENCES dbms_stats.backup_history(id) ON DELETE CASCADE
+Referenced by:
+ TABLE "dbms_stats.column_stats_backup" CONSTRAINT "column_stats_backup_id_fkey1" FOREIGN KEY (id, starelid) REFERENCES dbms_stats.relation_stats_backup(id, relid) ON DELETE CASCADE
+
+-- No.2-1-5
+\d dbms_stats._relation_stats_locked
+ Table "dbms_stats._relation_stats_locked"
+ Column | Type | Modifiers
+------------------+--------------------------+-----------
+ relid | oid | not null
+ relname | text | not null
+ relpages | integer |
+ reltuples | real |
+ relallvisible | integer |
+ curpages | integer |
+ last_analyze | timestamp with time zone |
+ last_autoanalyze | timestamp with time zone |
+Indexes:
+ "_relation_stats_locked_pkey" PRIMARY KEY, btree (relid)
+Referenced by:
+ TABLE "dbms_stats._column_stats_locked" CONSTRAINT "_column_stats_locked_starelid_fkey" FOREIGN KEY (starelid) REFERENCES dbms_stats._relation_stats_locked(relid) ON DELETE CASCADE
+Triggers:
+ invalidate_relation_cache BEFORE INSERT OR DELETE OR UPDATE ON dbms_stats._relation_stats_locked FOR EACH ROW EXECUTE PROCEDURE dbms_stats.invalidate_relation_cache()
+
+/*
+ * No.2-2 view definitions.
+ */
+-- No.2-2-1
+\dS+ dbms_stats.column_stats_effective
+ View "dbms_stats.column_stats_effective"
+ Column | Type | Modifiers | Storage | Description
+-------------+---------------------+-----------+----------+-------------
+ starelid | oid | | plain |
+ staattnum | smallint | | plain |
+ stainherit | boolean | | plain |
+ stanullfrac | real | | plain |
+ stawidth | integer | | plain |
+ stadistinct | real | | plain |
+ stakind1 | smallint | | plain |
+ stakind2 | smallint | | plain |
+ stakind3 | smallint | | plain |
+ stakind4 | smallint | | plain |
+ stakind5 | smallint | | plain |
+ staop1 | oid | | plain |
+ staop2 | oid | | plain |
+ staop3 | oid | | plain |
+ staop4 | oid | | plain |
+ staop5 | oid | | plain |
+ stanumbers1 | real[] | | extended |
+ stanumbers2 | real[] | | extended |
+ stanumbers3 | real[] | | extended |
+ stanumbers4 | real[] | | extended |
+ stanumbers5 | real[] | | extended |
+ stavalues1 | dbms_stats.anyarray | | extended |
+ stavalues2 | dbms_stats.anyarray | | extended |
+ stavalues3 | dbms_stats.anyarray | | extended |
+ stavalues4 | dbms_stats.anyarray | | extended |
+ stavalues5 | dbms_stats.anyarray | | extended |
+View definition:
+ SELECT m.starelid, m.staattnum, m.stainherit, m.stanullfrac, m.stawidth,
+ m.stadistinct, m.stakind1, m.stakind2, m.stakind3, m.stakind4, m.stakind5,
+ m.staop1, m.staop2, m.staop3, m.staop4, m.staop5, m.stanumbers1,
+ m.stanumbers2, m.stanumbers3, m.stanumbers4, m.stanumbers5, m.stavalues1,
+ m.stavalues2, m.stavalues3, m.stavalues4, m.stavalues5
+ FROM ( SELECT (dbms_stats.merge(v.*, s.*)).starelid AS starelid,
+ (dbms_stats.merge(v.*, s.*)).staattnum AS staattnum,
+ (dbms_stats.merge(v.*, s.*)).stainherit AS stainherit,
+ (dbms_stats.merge(v.*, s.*)).stanullfrac AS stanullfrac,
+ (dbms_stats.merge(v.*, s.*)).stawidth AS stawidth,
+ (dbms_stats.merge(v.*, s.*)).stadistinct AS stadistinct,
+ (dbms_stats.merge(v.*, s.*)).stakind1 AS stakind1,
+ (dbms_stats.merge(v.*, s.*)).stakind2 AS stakind2,
+ (dbms_stats.merge(v.*, s.*)).stakind3 AS stakind3,
+ (dbms_stats.merge(v.*, s.*)).stakind4 AS stakind4,
+ (dbms_stats.merge(v.*, s.*)).stakind5 AS stakind5,
+ (dbms_stats.merge(v.*, s.*)).staop1 AS staop1,
+ (dbms_stats.merge(v.*, s.*)).staop2 AS staop2,
+ (dbms_stats.merge(v.*, s.*)).staop3 AS staop3,
+ (dbms_stats.merge(v.*, s.*)).staop4 AS staop4,
+ (dbms_stats.merge(v.*, s.*)).staop5 AS staop5,
+ (dbms_stats.merge(v.*, s.*)).stanumbers1 AS stanumbers1,
+ (dbms_stats.merge(v.*, s.*)).stanumbers2 AS stanumbers2,
+ (dbms_stats.merge(v.*, s.*)).stanumbers3 AS stanumbers3,
+ (dbms_stats.merge(v.*, s.*)).stanumbers4 AS stanumbers4,
+ (dbms_stats.merge(v.*, s.*)).stanumbers5 AS stanumbers5,
+ (dbms_stats.merge(v.*, s.*)).stavalues1 AS stavalues1,
+ (dbms_stats.merge(v.*, s.*)).stavalues2 AS stavalues2,
+ (dbms_stats.merge(v.*, s.*)).stavalues3 AS stavalues3,
+ (dbms_stats.merge(v.*, s.*)).stavalues4 AS stavalues4,
+ (dbms_stats.merge(v.*, s.*)).stavalues5 AS stavalues5
+ FROM pg_statistic s
+ FULL JOIN dbms_stats._column_stats_locked v USING (starelid, staattnum, stainherit)
+ WHERE NOT dbms_stats.is_system_catalog(starelid::regclass)) m
+ WHERE m.starelid IS NOT NULL;
+
+-- No.2-2-2
+\dS+ dbms_stats.relation_stats_effective
+ View "dbms_stats.relation_stats_effective"
+ Column | Type | Modifiers | Storage | Description
+------------------+--------------------------+-----------+----------+-------------
+ relid | oid | | plain |
+ relname | text | | extended |
+ relpages | integer | | plain |
+ reltuples | real | | plain |
+ relallvisible | integer | | plain |
+ curpages | integer | | plain |
+ last_analyze | timestamp with time zone | | plain |
+ last_autoanalyze | timestamp with time zone | | plain |
+View definition:
+ SELECT c.oid AS relid,
+ dbms_stats.relname(n.nspname::text, c.relname::text) AS relname,
+ COALESCE(v.relpages, c.relpages) AS relpages,
+ COALESCE(v.reltuples, c.reltuples) AS reltuples,
+ COALESCE(v.relallvisible, c.relallvisible) AS relallvisible,
+ COALESCE(v.curpages, (pg_relation_size(c.oid::regclass) / current_setting('block_size'::text)::integer)::integer) AS curpages,
+ COALESCE(v.last_analyze, pg_stat_get_last_analyze_time(c.oid)) AS last_analyze,
+ COALESCE(v.last_autoanalyze, pg_stat_get_last_autoanalyze_time(c.oid)) AS last_autoanalyze
+ FROM pg_class c
+ JOIN pg_namespace n ON c.relnamespace = n.oid
+ LEFT JOIN dbms_stats._relation_stats_locked v ON v.relid = c.oid
+ WHERE dbms_stats.is_target_relkind(c.relkind) AND NOT dbms_stats.is_system_schema(n.nspname::text);
+
+-- No.2-2-3
+\dS+ dbms_stats.stats
+ View "dbms_stats.stats"
+ Column | Type | Modifiers | Storage | Description
+------------------------+---------------------+-----------+----------+-------------
+ schemaname | name | | plain |
+ tablename | name | | plain |
+ attname | name | | plain |
+ inherited | boolean | | plain |
+ null_frac | real | | plain |
+ avg_width | integer | | plain |
+ n_distinct | real | | plain |
+ most_common_vals | dbms_stats.anyarray | | extended |
+ most_common_freqs | real[] | | extended |
+ histogram_bounds | dbms_stats.anyarray | | extended |
+ correlation | real | | plain |
+ most_common_elems | dbms_stats.anyarray | | extended |
+ most_common_elem_freqs | real[] | | extended |
+ elem_count_histogram | real[] | | extended |
+View definition:
+ SELECT n.nspname AS schemaname, c.relname AS tablename, a.attname,
+ s.stainherit AS inherited, s.stanullfrac AS null_frac,
+ s.stawidth AS avg_width, s.stadistinct AS n_distinct,
+ CASE
+ WHEN s.stakind1 = 1 THEN s.stavalues1
+ WHEN s.stakind2 = 1 THEN s.stavalues2
+ WHEN s.stakind3 = 1 THEN s.stavalues3
+ WHEN s.stakind4 = 1 THEN s.stavalues4
+ WHEN s.stakind5 = 1 THEN s.stavalues5
+ ELSE NULL::dbms_stats.anyarray
+ END AS most_common_vals,
+ CASE
+ WHEN s.stakind1 = 1 THEN s.stanumbers1
+ WHEN s.stakind2 = 1 THEN s.stanumbers2
+ WHEN s.stakind3 = 1 THEN s.stanumbers3
+ WHEN s.stakind4 = 1 THEN s.stanumbers4
+ WHEN s.stakind5 = 1 THEN s.stanumbers5
+ ELSE NULL::real[]
+ END AS most_common_freqs,
+ CASE
+ WHEN s.stakind1 = 2 THEN s.stavalues1
+ WHEN s.stakind2 = 2 THEN s.stavalues2
+ WHEN s.stakind3 = 2 THEN s.stavalues3
+ WHEN s.stakind4 = 2 THEN s.stavalues4
+ WHEN s.stakind5 = 2 THEN s.stavalues5
+ ELSE NULL::dbms_stats.anyarray
+ END AS histogram_bounds,
+ CASE
+ WHEN s.stakind1 = 3 THEN s.stanumbers1[1]
+ WHEN s.stakind2 = 3 THEN s.stanumbers2[1]
+ WHEN s.stakind3 = 3 THEN s.stanumbers3[1]
+ WHEN s.stakind4 = 3 THEN s.stanumbers4[1]
+ WHEN s.stakind5 = 3 THEN s.stanumbers5[1]
+ ELSE NULL::real
+ END AS correlation,
+ CASE
+ WHEN s.stakind1 = 4 THEN s.stavalues1
+ WHEN s.stakind2 = 4 THEN s.stavalues2
+ WHEN s.stakind3 = 4 THEN s.stavalues3
+ WHEN s.stakind4 = 4 THEN s.stavalues4
+ WHEN s.stakind5 = 4 THEN s.stavalues5
+ ELSE NULL::dbms_stats.anyarray
+ END AS most_common_elems,
+ CASE
+ WHEN s.stakind1 = 4 THEN s.stanumbers1
+ WHEN s.stakind2 = 4 THEN s.stanumbers2
+ WHEN s.stakind3 = 4 THEN s.stanumbers3
+ WHEN s.stakind4 = 4 THEN s.stanumbers4
+ WHEN s.stakind5 = 4 THEN s.stanumbers5
+ ELSE NULL::real[]
+ END AS most_common_elem_freqs,
+ CASE
+ WHEN s.stakind1 = 5 THEN s.stanumbers1
+ WHEN s.stakind2 = 5 THEN s.stanumbers2
+ WHEN s.stakind3 = 5 THEN s.stanumbers3
+ WHEN s.stakind4 = 5 THEN s.stanumbers4
+ WHEN s.stakind5 = 5 THEN s.stanumbers5
+ ELSE NULL::real[]
+ END AS elem_count_histogram
+ FROM dbms_stats.column_stats_effective s
+ JOIN pg_class c ON c.oid = s.starelid
+ JOIN pg_attribute a ON c.oid = a.attrelid AND a.attnum = s.staattnum
+ LEFT JOIN pg_namespace n ON n.oid = c.relnamespace
+ WHERE NOT a.attisdropped AND has_column_privilege(c.oid, a.attnum, 'select'::text);
+
+-- No.2-2-4
+\dS+ dbms_stats.column_stats_locked
+ View "dbms_stats.column_stats_locked"
+ Column | Type | Modifiers | Storage | Description
+-------------+---------------------+-----------+----------+-------------
+ starelid | oid | | plain |
+ staattnum | smallint | | plain |
+ stainherit | boolean | | plain |
+ stanullfrac | real | | plain |
+ stawidth | integer | | plain |
+ stadistinct | real | | plain |
+ stakind1 | smallint | | plain |
+ stakind2 | smallint | | plain |
+ stakind3 | smallint | | plain |
+ stakind4 | smallint | | plain |
+ stakind5 | smallint | | plain |
+ staop1 | oid | | plain |
+ staop2 | oid | | plain |
+ staop3 | oid | | plain |
+ staop4 | oid | | plain |
+ staop5 | oid | | plain |
+ stanumbers1 | real[] | | extended |
+ stanumbers2 | real[] | | extended |
+ stanumbers3 | real[] | | extended |
+ stanumbers4 | real[] | | extended |
+ stanumbers5 | real[] | | extended |
+ stavalues1 | dbms_stats.anyarray | | extended |
+ stavalues2 | dbms_stats.anyarray | | extended |
+ stavalues3 | dbms_stats.anyarray | | extended |
+ stavalues4 | dbms_stats.anyarray | | extended |
+ stavalues5 | dbms_stats.anyarray | | extended |
+View definition:
+ SELECT _column_stats_locked.starelid, _column_stats_locked.staattnum,
+ _column_stats_locked.stainherit, _column_stats_locked.stanullfrac,
+ _column_stats_locked.stawidth, _column_stats_locked.stadistinct,
+ _column_stats_locked.stakind1, _column_stats_locked.stakind2,
+ _column_stats_locked.stakind3, _column_stats_locked.stakind4,
+ _column_stats_locked.stakind5, _column_stats_locked.staop1,
+ _column_stats_locked.staop2, _column_stats_locked.staop3,
+ _column_stats_locked.staop4, _column_stats_locked.staop5,
+ _column_stats_locked.stanumbers1, _column_stats_locked.stanumbers2,
+ _column_stats_locked.stanumbers3, _column_stats_locked.stanumbers4,
+ _column_stats_locked.stanumbers5, _column_stats_locked.stavalues1,
+ _column_stats_locked.stavalues2, _column_stats_locked.stavalues3,
+ _column_stats_locked.stavalues4, _column_stats_locked.stavalues5
+ FROM dbms_stats._column_stats_locked
+ WHERE has_column_privilege(_column_stats_locked.starelid, _column_stats_locked.staattnum, 'SELECT'::text);
+
+-- No.2-2-5
+\dS+ dbms_stats.relation_stats_locked
+ View "dbms_stats.relation_stats_locked"
+ Column | Type | Modifiers | Storage | Description
+------------------+--------------------------+-----------+----------+-------------
+ relid | oid | | plain |
+ relname | text | | extended |
+ relpages | integer | | plain |
+ reltuples | real | | plain |
+ relallvisible | integer | | plain |
+ curpages | integer | | plain |
+ last_analyze | timestamp with time zone | | plain |
+ last_autoanalyze | timestamp with time zone | | plain |
+View definition:
+ SELECT _relation_stats_locked.relid, _relation_stats_locked.relname,
+ _relation_stats_locked.relpages, _relation_stats_locked.reltuples,
+ _relation_stats_locked.relallvisible, _relation_stats_locked.curpages,
+ _relation_stats_locked.last_analyze,
+ _relation_stats_locked.last_autoanalyze
+ FROM dbms_stats._relation_stats_locked;
+
+/*
+ * No.5-1 dbms_stats.merge
+ */
+UPDATE pg_statistic SET
+ stanullfrac = staattnum,
+ stawidth = staattnum,
+ stadistinct = staattnum,
+ stakind1 = 4,
+ stakind2 = 1,
+ stakind3 = 2,
+ stakind4 = 3,
+ stakind5 = 5,
+ staop1 = 14,
+ staop2 = 11,
+ staop3 = 12,
+ staop4 = 13,
+ staop5 = 15,
+ stanumbers1 = ARRAY[staattnum,4],
+ stanumbers2 = ARRAY[staattnum,1],
+ stanumbers3 = ARRAY[staattnum,2],
+ stanumbers4 = ARRAY[staattnum,3],
+ stanumbers5 = ARRAY[staattnum,5],
+ stavalues2 = array_cat(stavalues1,stavalues1),
+ stavalues3 = array_cat(array_cat(stavalues1,stavalues1),stavalues1),
+ stavalues4 = array_cat(array_cat(array_cat(stavalues1,stavalues1),stavalues1),stavalues1)
+ ,stavalues5 = array_cat(array_cat(array_cat(array_cat(stavalues1,stavalues1),stavalues1),stavalues1),stavalues1)
+ WHERE starelid = 'st0'::regclass;
+SELECT dbms_stats.lock_table_stats('st0');
+ lock_table_stats
+------------------
+ st0
+(1 row)
+
+UPDATE dbms_stats._column_stats_locked SET
+ stainherit = 't',
+ stanullfrac = -staattnum,
+ stawidth = -staattnum,
+ stadistinct = -staattnum,
+ stakind1 = 2,
+ stakind2 = 3,
+ stakind3 = 4,
+ stakind4 = 1,
+ stakind5 = 5,
+ staop1 = 22,
+ staop2 = 23,
+ staop3 = 24,
+ staop4 = 21,
+ staop5 = 25,
+ stanumbers1 = ARRAY[-staattnum,22],
+ stanumbers2 = ARRAY[-staattnum,23],
+ stanumbers3 = ARRAY[-staattnum,24],
+ stanumbers4 = ARRAY[-staattnum,21],
+ stanumbers5 = ARRAY[-staattnum,25],
+ stavalues1 = stavalues3,
+ stavalues2 = stavalues2,
+ stavalues3 = stavalues1,
+ stavalues4 = stavalues4
+ ,stavalues5 = stavalues5
+;
+/*
+ * Driver function dbms_stats.merge1
+ */
+CREATE FUNCTION dbms_stats.merge1(
+ lhs dbms_stats._column_stats_locked,
+ rhs pg_catalog.pg_statistic
+) RETURNS integer AS
+'$libdir/pg_dbms_stats', 'dbms_stats_merge'
+LANGUAGE C STABLE;
+SELECT * FROM columns_locked_v
+ WHERE starelid = 'st0'::regclass;
+ starelid | staattnum | attname | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+----------+-----------+---------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+---------------------------+-------------------+------------+-----------------------------------+-------------------------------------------
+ st0 | 1 | id | t | -1 | -1 | -1 | 2 | 3 | 4 | 1 | 5 | 22 | 23 | 24 | 21 | 25 | {-1,22} | {-1,23} | {-1,24} | {-1,21} | {-1,25} | {1,2,1,2,1,2} | {1,2,1,2} | {1,2} | {1,2,1,2,1,2,1,2} | {1,2,1,2,1,2,1,2,1,2}
+ st0 | 2 | name | t | -2 | -2 | -2 | 2 | 3 | 4 | 1 | 5 | 22 | 23 | 24 | 21 | 25 | {-2,22} | {-2,23} | {-2,24} | {-2,21} | {-2,25} | {"test ","test ","test "} | {"test ","test "} | {"test "} | {"test ","test ","test ","test "} | {"test ","test ","test ","test ","test "}
+(2 rows)
+
+SELECT * FROM plain_columns_statistic_v
+ WHERE starelid = 'st0'::regclass;
+ starelid | staattnum | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+----------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------+-------------------+---------------------------+-----------------------------------+-------------------------------------------
+ st0 | 1 | f | 1 | 1 | 1 | 4 | 1 | 2 | 3 | 5 | 14 | 11 | 12 | 13 | 15 | {1,4} | {1,1} | {1,2} | {1,3} | {1,5} | {1,2} | {1,2,1,2} | {1,2,1,2,1,2} | {1,2,1,2,1,2,1,2} | {1,2,1,2,1,2,1,2,1,2}
+ st0 | 2 | f | 2 | 2 | 2 | 4 | 1 | 2 | 3 | 5 | 14 | 11 | 12 | 13 | 15 | {2,4} | {2,1} | {2,2} | {2,3} | {2,5} | {"test "} | {"test ","test "} | {"test ","test ","test "} | {"test ","test ","test ","test "} | {"test ","test ","test ","test ","test "}
+(2 rows)
+
+SET client_min_messages TO LOG;
+-- No.5-1-1
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).stakind5,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).staop5,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stanumbers5,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ ,(m.merge).stavalues5
+ FROM (SELECT dbms_stats.merge(NULL, s)
+ FROM pg_statistic s
+ WHERE starelid = 'st0'::regclass
+ AND staattnum = '1'::int2) m;
+ starelid | staattnum | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+----------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------+------------+---------------+-------------------+-----------------------
+ st0 | 1 | f | 1 | 1 | 1 | 4 | 1 | 2 | 3 | 5 | 14 | 11 | 12 | 13 | 15 | {1,4} | {1,1} | {1,2} | {1,3} | {1,5} | {1,2} | {1,2,1,2} | {1,2,1,2,1,2} | {1,2,1,2,1,2,1,2} | {1,2,1,2,1,2,1,2,1,2}
+(1 row)
+
+-- No.5-1-2
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).stakind5,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).staop5,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stanumbers5,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ ,(m.merge).stavalues5
+ FROM (SELECT dbms_stats.merge(v, NULL)
+ FROM dbms_stats._column_stats_locked v
+ WHERE starelid = 'st0'::regclass
+ AND staattnum = '2'::int2) m;
+ starelid | staattnum | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+----------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+---------------------------+-------------------+------------+-----------------------------------+-------------------------------------------
+ st0 | 2 | t | -2 | -2 | -2 | 2 | 3 | 4 | 1 | 5 | 22 | 23 | 24 | 21 | 25 | {-2,22} | {-2,23} | {-2,24} | {-2,21} | {-2,25} | {"test ","test ","test "} | {"test ","test "} | {"test "} | {"test ","test ","test ","test "} | {"test ","test ","test ","test ","test "}
+(1 row)
+
+-- No.5-1-3
+SELECT dbms_stats.merge(NULL, NULL);
+ merge
+--------
+ (null)
+(1 row)
+
+-- No.5-1-4
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).stakind5,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).staop5,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stanumbers5,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ ,(m.merge).stavalues5
+ FROM (SELECT dbms_stats.merge(v, s)
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2) m;
+ starelid | staattnum | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+----------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+---------------------------+-------------------+------------+-----------------------------------+-------------------------------------------
+ st0 | 2 | t | -2 | -2 | -2 | 2 | 3 | 4 | 1 | 5 | 22 | 23 | 24 | 21 | 25 | {-2,22} | {-2,23} | {-2,24} | {-2,21} | {-2,25} | {"test ","test ","test "} | {"test ","test "} | {"test "} | {"test ","test ","test ","test "} | {"test ","test ","test ","test ","test "}
+(1 row)
+
+-- No.5-1-5
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).stakind5,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).staop5,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stanumbers5,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ ,(m.merge).stavalues5
+ FROM (SELECT dbms_stats.merge(v, s)
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2) m;
+ starelid | staattnum | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+----------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+---------------------------+-------------------+------------+-----------------------------------+-------------------------------------------
+ st0 | 2 | t | -2 | -2 | -2 | 2 | 3 | 4 | 1 | 5 | 22 | 23 | 24 | 21 | 25 | {-2,22} | {-2,23} | {-2,24} | {-2,21} | {-2,25} | {"test ","test ","test "} | {"test ","test "} | {"test "} | {"test ","test ","test ","test "} | {"test ","test ","test ","test ","test "}
+(1 row)
+
+-- No.5-1-6
+SELECT dbms_stats.merge1(v, s)
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2;
+ERROR: return type must be a row type
+-- No.5-1-7
+SELECT dbms_stats.merge(NULL, (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ s.stakind1, s.stakind2, s.stakind3, s.stakind4,
+ s.stakind5,
+ s.staop1, s.staop2, s.staop3,
+ s.staop4,
+ NULL, s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stanumbers5,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ,s.stavalues5
+ ))
+ FROM pg_statistic s
+ WHERE s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2;
+ merge
+--------
+ (null)
+(1 row)
+
+-- No.5-1-8
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).stakind5,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).staop5,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stanumbers5,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ ,(m.merge).stavalues5
+ FROM (SELECT dbms_stats.merge(NULL, (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ s.stakind1, s.stakind2, s.stakind3, s.stakind4,
+ s.stakind5,
+ s.staop1, s.staop2, s.staop3, s.staop4,
+ s.staop5,
+ NULL, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stanumbers5,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ,s.stavalues5
+ ))
+ FROM pg_statistic s
+ WHERE s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2) m;
+ starelid | staattnum | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+----------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------+------------+---------------+-------------------+-----------------------
+ st0 | 1 | f | 1 | 1 | 1 | 4 | 1 | 2 | 3 | 5 | 14 | 11 | 12 | 13 | 15 | (null) | {1,1} | {1,2} | {1,3} | {1,5} | {1,2} | {1,2,1,2} | {1,2,1,2,1,2} | {1,2,1,2,1,2,1,2} | {1,2,1,2,1,2,1,2,1,2}
+(1 row)
+
+-- No.5-1-9
+SELECT dbms_stats.merge((
+ v.starelid::regclass, v.staattnum, v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ v.stakind1, v.stakind2, v.stakind3, v.stakind4,
+ v.stakind5,
+ v.staop1, v.staop2, v.staop3,
+ v.staop4,
+ NULL, v.stanumbers1, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stanumbers5,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ,v.stavalues5
+ ), NULL)
+ FROM dbms_stats._column_stats_locked v
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2;
+ merge
+--------
+ (null)
+(1 row)
+
+-- No.5-1-10
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).stakind5,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).staop5,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stanumbers5,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ ,(m.merge).stavalues5
+ FROM (SELECT dbms_stats.merge((
+ v.starelid::regclass, v.staattnum, v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ v.stakind1, v.stakind2, v.stakind3, v.stakind4,
+ v.stakind5,
+ v.staop1, v.staop2, v.staop3, v.staop4,
+ v.staop5,
+ NULL, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stanumbers5,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ,v.stavalues5
+ ), NULL)
+ FROM dbms_stats._column_stats_locked v
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2) m;
+ starelid | staattnum | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+----------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+---------------------------+-------------------+------------+-----------------------------------+-------------------------------------------
+ st0 | 2 | t | -2 | -2 | -2 | 2 | 3 | 4 | 1 | 5 | 22 | 23 | 24 | 21 | 25 | (null) | {-2,23} | {-2,24} | {-2,21} | {-2,25} | {"test ","test ","test "} | {"test ","test "} | {"test "} | {"test ","test ","test ","test "} | {"test ","test ","test ","test ","test "}
+(1 row)
+
+-- No.5-1-11
+SELECT dbms_stats.merge((
+ v.starelid::regclass, v.staattnum, v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ v.stakind1, v.stakind2, v.stakind3, v.stakind4,
+ v.stakind5,
+ v.staop1, v.staop2, v.staop3,
+ v.staop4,
+ NULL, v.stanumbers1, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stanumbers5,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ,v.stavalues5
+ ), (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ s.stakind1, s.stakind2, s.stakind3, s.stakind4,
+ s.stakind5,
+ s.staop1, s.staop2, s.staop3,
+ s.staop4,
+ NULL, s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stanumbers5,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ,s.stavalues5
+ ))
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2;
+LOG: pg_dbms_stats: bad statistics
+DETAIL: column "staop5" should not be null
+ merge
+--------
+ (null)
+(1 row)
+
+-- No.5-1-12
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).stakind5,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).staop5,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stanumbers5,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ ,(m.merge).stavalues5
+ FROM (SELECT dbms_stats.merge((
+ v.starelid::regclass, v.staattnum, v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ v.stakind1, v.stakind2, v.stakind3, v.stakind4,
+ v.stakind5,
+ v.staop1, v.staop2, v.staop3, v.staop4,
+ v.staop5,
+ NULL, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stanumbers5,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ,v.stavalues5
+ ), (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ s.stakind1, s.stakind2, s.stakind3, s.stakind4,
+ s.stakind5,
+ s.staop1, s.staop2, s.staop3, s.staop4,
+ s.staop5,
+ NULL, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stanumbers5,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ,s.stavalues5
+ ))
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2) m;
+ starelid | staattnum | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+----------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+---------------------------+-------------------+------------+-----------------------------------+-------------------------------------------
+ st0 | 2 | t | -2 | -2 | -2 | 2 | 3 | 4 | 1 | 5 | 22 | 23 | 24 | 21 | 25 | (null) | {-2,23} | {-2,24} | {-2,21} | {-2,25} | {"test ","test ","test "} | {"test ","test "} | {"test "} | {"test ","test ","test ","test "} | {"test ","test ","test ","test ","test "}
+(1 row)
+
+-- No.5-1-13
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).stakind5,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).staop5,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stanumbers5,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ ,(m.merge).stavalues5
+ FROM (SELECT dbms_stats.merge((
+ NULL, NULL, NULL,
+ NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL
+ ,NULL, NULL, NULL, NULL
+ ), s)
+ FROM pg_statistic s
+ WHERE s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2) m;
+ starelid | staattnum | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+----------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------+------------+---------------+-------------------+-----------------------
+ st0 | 1 | f | 1 | 1 | 1 | 4 | 1 | 2 | 3 | 5 | 14 | 11 | 12 | 13 | 15 | {1,4} | {1,1} | {1,2} | {1,3} | {1,5} | {1,2} | {1,2,1,2} | {1,2,1,2,1,2} | {1,2,1,2,1,2,1,2} | {1,2,1,2,1,2,1,2,1,2}
+(1 row)
+
+-- No.5-1-14
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).stakind5,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).staop5,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stanumbers5,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ ,(m.merge).stavalues5
+ FROM (SELECT dbms_stats.merge(v, (
+ NULL, NULL, NULL,
+ NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL))
+ FROM dbms_stats._column_stats_locked v
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2) m;
+ starelid | staattnum | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+----------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+---------------------------+-------------------+------------+-----------------------------------+-------------------------------------------
+ st0 | 2 | t | -2 | -2 | -2 | 2 | 3 | 4 | 1 | 5 | 22 | 23 | 24 | 21 | 25 | {-2,22} | {-2,23} | {-2,24} | {-2,21} | {-2,25} | {"test ","test ","test "} | {"test ","test "} | {"test "} | {"test ","test ","test ","test "} | {"test ","test ","test ","test ","test "}
+(1 row)
+
+-- No.5-1-15
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).stakind5,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).staop5,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stanumbers5,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ ,(m.merge).stavalues5
+ FROM (SELECT dbms_stats.merge(v, s)
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2) m;
+ starelid | staattnum | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+----------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+---------------------------+-------------------+------------+-----------------------------------+-------------------------------------------
+ st0 | 2 | t | -2 | -2 | -2 | 2 | 3 | 4 | 1 | 5 | 22 | 23 | 24 | 21 | 25 | {-2,22} | {-2,23} | {-2,24} | {-2,21} | {-2,25} | {"test ","test ","test "} | {"test ","test "} | {"test "} | {"test ","test ","test ","test "} | {"test ","test ","test ","test ","test "}
+(1 row)
+
+-- No.5-1-16
+SELECT dbms_stats.merge((
+ v.starelid::regclass, v.staattnum, v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL
+ ,NULL, NULL, NULL, NULL
+ ), (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL))
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2;
+LOG: pg_dbms_stats: bad statistics
+DETAIL: column "stakind1" should not be null
+ merge
+--------
+ (null)
+(1 row)
+
+-- No.5-1-17
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).stakind5,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).staop5,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stanumbers5,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ ,(m.merge).stavalues5
+ FROM (SELECT dbms_stats.merge((
+ v.starelid::regclass, v.staattnum, v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ v.stakind1, v.stakind2, v.stakind3, v.stakind4,
+ v.stakind5,
+ v.staop1, v.staop2, v.staop3,
+ v.staop4,
+ NULL, v.stanumbers1, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stanumbers5,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ,v.stavalues5
+ ), (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ s.stakind1, s.stakind2, s.stakind3, s.stakind4,
+ s.stakind5,
+ s.staop1, s.staop2, s.staop3, s.staop4,
+ s.staop5,
+ s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stanumbers5,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ,s.stavalues5
+ ))
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '1'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2) m;
+ starelid | staattnum | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+----------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------+------------+---------------+-------------------+-----------------------
+ st0 | 1 | t | -1 | -1 | -1 | 4 | 1 | 2 | 3 | 5 | 14 | 11 | 12 | 13 | 15 | {1,4} | {1,1} | {1,2} | {1,3} | {1,5} | {1,2} | {1,2,1,2} | {1,2,1,2,1,2} | {1,2,1,2,1,2,1,2} | {1,2,1,2,1,2,1,2,1,2}
+(1 row)
+
+-- No.5-1-18
+SELECT dbms_stats.merge((
+ v.starelid::regclass, v.staattnum, v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ v.stakind1, v.stakind2, v.stakind3, v.stakind4,
+ v.stakind5,
+ v.staop1, v.staop2, v.staop3,
+ v.staop4,
+ NULL, v.stanumbers1, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stanumbers5,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ,v.stavalues5
+ ), (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ s.stakind1, s.stakind2, s.stakind3, s.stakind4,
+ s.stakind5,
+ s.staop1, s.staop2, s.staop3,
+ s.staop4,
+ NULL, s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stanumbers5,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ,s.stavalues5
+ ))
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '1'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2;
+LOG: pg_dbms_stats: bad statistics
+DETAIL: column "staop5" should not be null
+ merge
+--------
+ (null)
+(1 row)
+
+-- No.5-1-19
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).stakind5,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).staop5,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stanumbers5,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ ,(m.merge).stavalues5
+ FROM (SELECT dbms_stats.merge((
+ v.starelid::regclass, v.staattnum, v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ '1', '1', '1', '1',
+ '1',
+ v.staop1, v.staop2, v.staop3, v.staop4,
+ v.staop5,
+ v.stanumbers1, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stanumbers5,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ,v.stavalues5
+ ), (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ '1', '1', '1', '1',
+ '1',
+ s.staop1, s.staop2, s.staop3, s.staop4,
+ s.staop5,
+ s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stanumbers5,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ,s.stavalues5
+ ))
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2) m;
+ starelid | staattnum | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+----------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+---------------------------+-------------------+------------+-----------------------------------+-------------------------------------------
+ st0 | 2 | t | -2 | -2 | -2 | 1 | 1 | 1 | 1 | 1 | 22 | 23 | 24 | 21 | 25 | {-2,22} | {-2,23} | {-2,24} | {-2,21} | {-2,25} | {"test ","test ","test "} | {"test ","test "} | {"test "} | {"test ","test ","test ","test "} | {"test ","test ","test ","test ","test "}
+(1 row)
+
+-- No.5-1-20
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).stakind5,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).staop5,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stanumbers5,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ ,(m.merge).stavalues5
+ FROM (SELECT dbms_stats.merge((v.starelid::regclass, v.staattnum, v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ '2', '2', '2', '2',
+ '2',
+ v.staop1, v.staop2, v.staop3, v.staop4,
+ v.staop5,
+ v.stanumbers1, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stanumbers5,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ,v.stavalues5
+ ), (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ '2', '2', '2', '2',
+ '2',
+ s.staop1, s.staop2, s.staop3, s.staop4,
+ s.staop5,
+ s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stanumbers5,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ,s.stavalues5
+ ))
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2) m;
+ starelid | staattnum | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+----------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+---------------------------+-------------------+------------+-----------------------------------+-------------------------------------------
+ st0 | 2 | t | -2 | -2 | -2 | 2 | 2 | 2 | 2 | 2 | 22 | 23 | 24 | 21 | 25 | {-2,22} | {-2,23} | {-2,24} | {-2,21} | {-2,25} | {"test ","test ","test "} | {"test ","test "} | {"test "} | {"test ","test ","test ","test "} | {"test ","test ","test ","test ","test "}
+(1 row)
+
+-- No.5-1-21
+SELECT dbms_stats.merge((v.starelid::regclass, '2', v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ '1', '1', '1', '1',
+ '1',
+ v.staop1, v.staop2, v.staop3, v.staop4,
+ v.staop5,
+ v.stanumbers1, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stanumbers5,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ,v.stavalues5
+ ), (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ '1', '1', '1', '1',
+ '1',
+ s.staop1, s.staop2, s.staop3, s.staop4,
+ s.staop5,
+ s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stanumbers5,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ,s.stavalues5
+ ))
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '1'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2;
+LOG: pg_dbms_stats: bad column type
+DETAIL: type of column "name" has been changed
+HINT: need to execute dbms_stats.unlock('st0', 'name')
+ merge
+--------
+ (null)
+(1 row)
+
+-- No.5-1-22
+SELECT dbms_stats.merge((v.starelid::regclass, '2', v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ '2', '2', '2', '2',
+ '2',
+ v.staop1, v.staop2, v.staop3, v.staop4,
+ v.staop5,
+ v.stanumbers1, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stanumbers5,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ,v.stavalues5
+ ), (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ '2', '2', '2', '2',
+ '2',
+ s.staop1, s.staop2, s.staop3, s.staop4,
+ s.staop5,
+ s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stanumbers5,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ,s.stavalues5
+ ))
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '1'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2;
+LOG: pg_dbms_stats: bad column type
+DETAIL: type of column "name" has been changed
+HINT: need to execute dbms_stats.unlock('st0', 'name')
+ merge
+--------
+ (null)
+(1 row)
+
+RESET client_min_messages;
+SELECT dbms_stats.unlock_database_stats();
+ unlock_database_stats
+-----------------------
+ st0
+(1 row)
+
+/*
+ * No.6-4 dbms_stats.is_target_relkind
+ */
+-- No.6-4-10
+SELECT dbms_stats.is_target_relkind('f');
+ is_target_relkind
+-------------------
+ t
+(1 row)
+
+/*
+ * No.7-1 dbms_stats.backup
+ */
+DELETE FROM dbms_stats.backup_history;
+INSERT INTO dbms_stats.backup_history(id, time, unit) values(1, '2012-01-01', 'd');
+-- No.7-1-9
+SELECT dbms_stats.backup(1, 's0.sft0'::regclass, NULL);
+ backup
+--------
+ 1
+(1 row)
+
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 1
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+ count
+-------
+ 0
+(1 row)
+
+-- No.7-1-11
+DELETE FROM dbms_stats.relation_stats_backup;
+SELECT dbms_stats.backup(1, NULL, 1::int2);
+ backup
+--------
+ 1
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats.relation_stats_backup
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ s1.st0
+ st1_idx
+ st1_exp
+(15 rows)
+
+SELECT starelid::regclass, staattnum FROM dbms_stats.column_stats_backup
+ GROUP BY starelid, staattnum
+ ORDER BY starelid, staattnum;
+ starelid | staattnum
+----------+-----------
+ st0 | 1
+ st1 | 1
+ s0.st0 | 1
+ s0.st1 | 1
+ s0.st2 | 1
+ s1.st0 | 1
+ st1_exp | 1
+(7 rows)
+
+-- No.7-1-13
+DELETE FROM dbms_stats.relation_stats_backup;
+SELECT dbms_stats.backup(1, NULL::regclass, NULL);
+ backup
+--------
+ 1
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats.relation_stats_backup
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ s1.st0
+ st1_idx
+ st1_exp
+(15 rows)
+
+SELECT starelid::regclass, staattnum FROM dbms_stats.column_stats_backup
+ GROUP BY starelid, staattnum
+ ORDER BY starelid, staattnum;
+ starelid | staattnum
+----------+-----------
+ st0 | 1
+ st0 | 2
+ st1 | 1
+ st1 | 2
+ s0.st0 | 1
+ s0.st0 | 2
+ s0.st1 | 1
+ s0.st1 | 2
+ s0.st2 | 1
+ s0.st2 | 2
+ s1.st0 | 1
+ s1.st0 | 2
+ st1_exp | 1
+(13 rows)
+
+-- No.7-1-17
+DELETE FROM dbms_stats.relation_stats_backup;
+\! psql contrib_regression -c "SELECT dbms_stats.backup(NULL, 's0.st0'::regclass, NULL)" > results/ut_no2_1_17.out 2>&1
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+ count
+-------
+ 0
+(1 row)
+
+/*
+ * No.8-1 dbms_stats.backup
+ */
+SELECT setval('dbms_stats.backup_history_id_seq',1, false);
+ setval
+--------
+ 1
+(1 row)
+
+/*
+ * Stab function dbms_stats.backup
+ */
+ALTER FUNCTION dbms_stats.backup(
+ backup_id int8,
+ relid regclass,
+ attnum int2)
+ RENAME TO truth_func_backup;
+CREATE OR REPLACE FUNCTION dbms_stats.backup(
+ backup_id int8,
+ regclass,
+ attnum int2)
+RETURNS int8 AS
+$$
+BEGIN
+ RAISE NOTICE 'arguments are %, %, %', $1, $2, $3;
+ RETURN 1;
+END;
+$$
+LANGUAGE plpgsql;
+-- No.8-1-1
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup('s0.st0'::regclass, 'id', 'dummy comment');
+NOTICE: arguments are 1, s0.st0, 1
+CONTEXT: SQL statement "INSERT INTO dbms_stats.backup_history(time, unit, comment)
+ VALUES (current_timestamp, unit_type, $3)
+ RETURNING dbms_stats.backup(id, $1, set_attnum)"
+PL/pgSQL function dbms_stats.backup(regclass,text,text) line 42 at SQL statement
+ backup
+--------
+ 1
+(1 row)
+
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+ id | unit | comment
+----+------+---------------
+ 1 | c | dummy comment
+(1 row)
+
+-- No.8-1-2
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup('s0.st0'::regclass, NULL, 'dummy comment');
+NOTICE: arguments are 2, s0.st0, <NULL>
+CONTEXT: SQL statement "INSERT INTO dbms_stats.backup_history(time, unit, comment)
+ VALUES (current_timestamp, unit_type, $3)
+ RETURNING dbms_stats.backup(id, $1, set_attnum)"
+PL/pgSQL function dbms_stats.backup(regclass,text,text) line 42 at SQL statement
+ backup
+--------
+ 1
+(1 row)
+
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+ id | unit | comment
+----+------+---------------
+ 2 | t | dummy comment
+(1 row)
+
+-- No.8-1-3
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup(NULL::regclass, 'id', 'dummy comment');
+ERROR: relation is required
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+ id | unit | comment
+----+------+---------
+(0 rows)
+
+-- No.8-1-4
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup(NULL::regclass, NULL, 'dummy comment');
+NOTICE: arguments are 3, <NULL>, <NULL>
+CONTEXT: SQL statement "INSERT INTO dbms_stats.backup_history(time, unit, comment)
+ VALUES (current_timestamp, unit_type, $3)
+ RETURNING dbms_stats.backup(id, $1, set_attnum)"
+PL/pgSQL function dbms_stats.backup(regclass,text,text) line 42 at SQL statement
+ backup
+--------
+ 1
+(1 row)
+
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+ id | unit | comment
+----+------+---------------
+ 3 | d | dummy comment
+(1 row)
+
+-- No.8-1-5
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup(0, NULL, 'dummy comment');
+ERROR: relation "-" does not exist
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+ id | unit | comment
+----+------+---------
+(0 rows)
+
+-- No.8-1-6
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup('s0.st0'::regclass, NULL, 'dummy comment');
+NOTICE: arguments are 4, s0.st0, <NULL>
+CONTEXT: SQL statement "INSERT INTO dbms_stats.backup_history(time, unit, comment)
+ VALUES (current_timestamp, unit_type, $3)
+ RETURNING dbms_stats.backup(id, $1, set_attnum)"
+PL/pgSQL function dbms_stats.backup(regclass,text,text) line 42 at SQL statement
+ backup
+--------
+ 1
+(1 row)
+
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+ id | unit | comment
+----+------+---------------
+ 4 | t | dummy comment
+(1 row)
+
+-- No.8-1-7
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup(
+ 'pg_toast.pg_toast_2618'::regclass,
+ NULL,
+ 'dummy comment');
+ERROR: can not backup statistics of "pg_toast.pg_toast_2618" with relkind "t"
+HINT: only tables and indexes are supported
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+ id | unit | comment
+----+------+---------
+(0 rows)
+
+-- No.8-1-8
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup('s0.st0_idx'::regclass, NULL, 'dummy comment');
+NOTICE: arguments are 5, s0.st0_idx, <NULL>
+CONTEXT: SQL statement "INSERT INTO dbms_stats.backup_history(time, unit, comment)
+ VALUES (current_timestamp, unit_type, $3)
+ RETURNING dbms_stats.backup(id, $1, set_attnum)"
+PL/pgSQL function dbms_stats.backup(regclass,text,text) line 42 at SQL statement
+ backup
+--------
+ 1
+(1 row)
+
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+ id | unit | comment
+----+------+---------------
+ 5 | t | dummy comment
+(1 row)
+
+-- No.8-1-9
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup('s0.ss0'::regclass, NULL, 'dummy comment');
+ERROR: can not backup statistics of "s0.ss0" with relkind "S"
+HINT: only tables and indexes are supported
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+ id | unit | comment
+----+------+---------
+(0 rows)
+
+-- No.8-1-10
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup('s0.sc0'::regclass, NULL, 'dummy comment');
+ERROR: can not backup statistics of "s0.sc0" with relkind "c"
+HINT: only tables and indexes are supported
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+ id | unit | comment
+----+------+---------
+(0 rows)
+
+-- No.8-1-11
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup('s0.sft0'::regclass, NULL, 'dummy comment');
+NOTICE: arguments are 6, s0.sft0, <NULL>
+CONTEXT: SQL statement "INSERT INTO dbms_stats.backup_history(time, unit, comment)
+ VALUES (current_timestamp, unit_type, $3)
+ RETURNING dbms_stats.backup(id, $1, set_attnum)"
+PL/pgSQL function dbms_stats.backup(regclass,text,text) line 42 at SQL statement
+ backup
+--------
+ 1
+(1 row)
+
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+ id | unit | comment
+----+------+---------------
+ 6 | t | dummy comment
+(1 row)
+
+-- No.8-1-12
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup('pg_catalog.pg_class'::regclass, NULL, 'dummy comment');
+ERROR: can not backup statistics of system catalog "pg_class"
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+ id | unit | comment
+----+------+---------
+(0 rows)
+
+-- No.8-1-13
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup('s0.st0'::regclass, 'dummy', 'dummy comment');
+ERROR: column "dummy" of "s0.st0" does not exist
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+ id | unit | comment
+----+------+---------
+(0 rows)
+
+-- No.8-1-14
+DELETE FROM dbms_stats.backup_history;
+DELETE FROM pg_statistic
+ WHERE starelid = 's0.st0'::regclass
+ AND staattnum = 1::int2;
+SELECT count(*) FROM dbms_stats.column_stats_effective
+ WHERE starelid = 's0.st0'::regclass
+ AND staattnum = 1::int2;
+ count
+-------
+ 0
+(1 row)
+
+SELECT dbms_stats.backup('s0.st0'::regclass, 'id', 'dummy comment');
+ERROR: statistic for column "id" of "s0.st0" does not exist
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+ id | unit | comment
+----+------+---------
+(0 rows)
+
+/*
+ * Stab function dbms_stats.backup
+ */
+ALTER FUNCTION dbms_stats.backup(
+ relid regclass,
+ attname text,
+ comment text)
+ RENAME TO truth_func_backup;
+CREATE OR REPLACE FUNCTION dbms_stats.backup(
+ relid regclass DEFAULT NULL,
+ attname text DEFAULT NULL,
+ comment text DEFAULT NULL)
+RETURNS int8 AS
+$$
+BEGIN
+ IF $3 = '<NULL>' THEN
+ RAISE NOTICE 'third argument is not NULL but string "<NULL>"';
+ END IF;
+ RAISE NOTICE 'arguments are %, %, %', $1, $2, $3;
+ RETURN 1;
+END;
+$$
+LANGUAGE plpgsql;
+/*
+ * No.8-3 dbms_stats.backup_schema_stats
+ */
+SELECT setval('dbms_stats.backup_history_id_seq',9, false);
+ setval
+--------
+ 9
+(1 row)
+
+-- No.8-3-1
+SELECT dbms_stats.backup_schema_stats('s0', 'comment');
+NOTICE: arguments are 9, s0.st0, <NULL>
+CONTEXT: SQL statement "SELECT dbms_stats.backup(backup_id, cn.oid, NULL)
+ FROM (SELECT c.oid
+ FROM pg_catalog.pg_class c,
+ pg_catalog.pg_namespace n
+ WHERE n.nspname = schemaname
+ AND c.relnamespace = n.oid
+ AND dbms_stats.is_target_relkind(c.relkind)
+ ORDER BY c.oid
+ ) cn"
+PL/pgSQL function dbms_stats.backup_schema_stats(text,text) line 16 at PERFORM
+NOTICE: arguments are 9, s0.st0_idx, <NULL>
+CONTEXT: SQL statement "SELECT dbms_stats.backup(backup_id, cn.oid, NULL)
+ FROM (SELECT c.oid
+ FROM pg_catalog.pg_class c,
+ pg_catalog.pg_namespace n
+ WHERE n.nspname = schemaname
+ AND c.relnamespace = n.oid
+ AND dbms_stats.is_target_relkind(c.relkind)
+ ORDER BY c.oid
+ ) cn"
+PL/pgSQL function dbms_stats.backup_schema_stats(text,text) line 16 at PERFORM
+NOTICE: arguments are 9, s0.st1, <NULL>
+CONTEXT: SQL statement "SELECT dbms_stats.backup(backup_id, cn.oid, NULL)
+ FROM (SELECT c.oid
+ FROM pg_catalog.pg_class c,
+ pg_catalog.pg_namespace n
+ WHERE n.nspname = schemaname
+ AND c.relnamespace = n.oid
+ AND dbms_stats.is_target_relkind(c.relkind)
+ ORDER BY c.oid
+ ) cn"
+PL/pgSQL function dbms_stats.backup_schema_stats(text,text) line 16 at PERFORM
+NOTICE: arguments are 9, s0.st1_idx, <NULL>
+CONTEXT: SQL statement "SELECT dbms_stats.backup(backup_id, cn.oid, NULL)
+ FROM (SELECT c.oid
+ FROM pg_catalog.pg_class c,
+ pg_catalog.pg_namespace n
+ WHERE n.nspname = schemaname
+ AND c.relnamespace = n.oid
+ AND dbms_stats.is_target_relkind(c.relkind)
+ ORDER BY c.oid
+ ) cn"
+PL/pgSQL function dbms_stats.backup_schema_stats(text,text) line 16 at PERFORM
+NOTICE: arguments are 9, s0.st2, <NULL>
+CONTEXT: SQL statement "SELECT dbms_stats.backup(backup_id, cn.oid, NULL)
+ FROM (SELECT c.oid
+ FROM pg_catalog.pg_class c,
+ pg_catalog.pg_namespace n
+ WHERE n.nspname = schemaname
+ AND c.relnamespace = n.oid
+ AND dbms_stats.is_target_relkind(c.relkind)
+ ORDER BY c.oid
+ ) cn"
+PL/pgSQL function dbms_stats.backup_schema_stats(text,text) line 16 at PERFORM
+NOTICE: arguments are 9, s0.st2_idx, <NULL>
+CONTEXT: SQL statement "SELECT dbms_stats.backup(backup_id, cn.oid, NULL)
+ FROM (SELECT c.oid
+ FROM pg_catalog.pg_class c,
+ pg_catalog.pg_namespace n
+ WHERE n.nspname = schemaname
+ AND c.relnamespace = n.oid
+ AND dbms_stats.is_target_relkind(c.relkind)
+ ORDER BY c.oid
+ ) cn"
+PL/pgSQL function dbms_stats.backup_schema_stats(text,text) line 16 at PERFORM
+NOTICE: arguments are 9, s0.sft0, <NULL>
+CONTEXT: SQL statement "SELECT dbms_stats.backup(backup_id, cn.oid, NULL)
+ FROM (SELECT c.oid
+ FROM pg_catalog.pg_class c,
+ pg_catalog.pg_namespace n
+ WHERE n.nspname = schemaname
+ AND c.relnamespace = n.oid
+ AND dbms_stats.is_target_relkind(c.relkind)
+ ORDER BY c.oid
+ ) cn"
+PL/pgSQL function dbms_stats.backup_schema_stats(text,text) line 16 at PERFORM
+ backup_schema_stats
+---------------------
+ 9
+(1 row)
+
+SELECT id, unit, comment FROM dbms_stats.backup_history
+ ORDER BY id DESC
+ LIMIT 1;
+ id | unit | comment
+----+------+---------
+ 9 | s | comment
+(1 row)
+
+-- No.8-3-2
+SELECT dbms_stats.backup_schema_stats('s00', 'comment');
+ERROR: schema "s00" does not exist
+SELECT id, unit, comment FROM dbms_stats.backup_history
+ ORDER BY id DESC
+ LIMIT 1;
+ id | unit | comment
+----+------+---------
+ 9 | s | comment
+(1 row)
+
+-- No.8-3-3
+SELECT dbms_stats.backup_schema_stats('pg_catalog', 'comment');
+ERROR: can not backup statistics of relation in system schema "pg_catalog"
+SELECT id, unit, comment FROM dbms_stats.backup_history
+ ORDER BY id DESC
+ LIMIT 1;
+ id | unit | comment
+----+------+---------
+ 9 | s | comment
+(1 row)
+
+/*
+ * Delete stab function dbms_stats.backup
+ */
+DROP FUNCTION dbms_stats.backup(
+ backup_id int8,
+ regclass,
+ attnum int2);
+ALTER FUNCTION dbms_stats.truth_func_backup(
+ backup_id int8,
+ regclass,
+ attnum int2)
+ RENAME TO backup;
+DROP FUNCTION dbms_stats.backup(
+ regclass,
+ attname text,
+ comment text);
+ALTER FUNCTION dbms_stats.truth_func_backup(
+ regclass,
+ attname text,
+ comment text)
+ RENAME TO backup;
+VACUUM ANALYZE;
+/*
+ * create backup statistics state A
+ */
+DELETE FROM dbms_stats.backup_history;
+INSERT INTO dbms_stats.backup_history(id, time, unit)
+ VALUES (1, '2012-02-29 23:59:56.999999', 'd');
+SELECT setval('dbms_stats.backup_history_id_seq',1);
+ setval
+--------
+ 1
+(1 row)
+
+SELECT dbms_stats.backup();
+ backup
+--------
+ 2
+(1 row)
+
+UPDATE dbms_stats.backup_history
+ SET time = '2012-02-29 23:59:57'
+ WHERE id = 2;
+SELECT dbms_stats.backup('s0.st0');
+ backup
+--------
+ 3
+(1 row)
+
+UPDATE dbms_stats.backup_history
+ SET time = '2012-02-29 23:59:57.000001'
+ WHERE id = 3;
+SELECT dbms_stats.backup();
+ backup
+--------
+ 4
+(1 row)
+
+UPDATE dbms_stats.backup_history
+ SET time = '2012-02-29 23:59:58'
+ WHERE id = 4;
+DELETE FROM dbms_stats.relation_stats_backup
+ WHERE id = 4;
+SELECT dbms_stats.backup('s0.st0', 'id');
+ backup
+--------
+ 5
+(1 row)
+
+UPDATE dbms_stats.backup_history
+ SET time = '2012-03-01 00:00:00'
+ WHERE id = 5;
+SELECT dbms_stats.backup('s0.st0');
+ backup
+--------
+ 6
+(1 row)
+
+UPDATE dbms_stats.backup_history
+ SET time = '2012-03-01 00:00:02'
+ WHERE id = 6;
+SELECT dbms_stats.backup('public.st0');
+ backup
+--------
+ 7
+(1 row)
+
+UPDATE dbms_stats.backup_history
+ SET time = '2012-03-01 00:00:04'
+ WHERE id = 7;
+INSERT INTO dbms_stats.backup_history(time, unit)
+ VALUES ('2012-03-01 00:00:06', 's');
+SELECT dbms_stats.backup(8, c.oid, NULL)
+ FROM pg_catalog.pg_class c,
+ pg_catalog.pg_namespace n
+ WHERE n.nspname = 's0'
+ AND c.relnamespace = n.oid
+ AND c.relkind IN ('r', 'i');
+ backup
+--------
+ 8
+ 8
+ 8
+ 8
+ 8
+ 8
+(6 rows)
+
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+ id | time | unit | comment
+----+-------------------------------------+------+---------
+ 1 | Wed Feb 29 23:59:56.999999 2012 PST | d | (null)
+ 2 | Wed Feb 29 23:59:57 2012 PST | d | (null)
+ 3 | Wed Feb 29 23:59:57.000001 2012 PST | t | (null)
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(8 rows)
+
+SELECT * FROM relations_backup_v;
+ id | relid | relname | relpages | reltuples | relallvisible | curpages
+----+------------+----------------+----------+-----------+---------------+----------
+ 2 | pt0 | public.pt0 | 0 | 0 | 0 | 0
+ 2 | pt0_idx | public.pt0_idx | 2 | 0 | 0 | 2
+ 2 | st0 | public.st0 | 1 | 2 | 1 | 1
+ 2 | st0_idx | public.st0_idx | 2 | 2 | 0 | 2
+ 2 | st1 | public.st1 | 45 | 10000 | 45 | 45
+ 2 | s0.st0 | s0.st0 | 1 | 2 | 1 | 1
+ 2 | s0.st0_idx | s0.st0_idx | 2 | 2 | 0 | 2
+ 2 | s0.st1 | s0.st1 | 1 | 3 | 1 | 1
+ 2 | s0.st1_idx | s0.st1_idx | 2 | 3 | 0 | 2
+ 2 | s0.st2 | s0.st2 | 1 | 3 | 1 | 1
+ 2 | s0.st2_idx | s0.st2_idx | 2 | 3 | 0 | 2
+ 2 | s0.sft0 | s0.sft0 | 0 | 0 | 0 | 0
+ 2 | s1.st0 | s1.st0 | 1 | 4 | 1 | 1
+ 2 | st1_idx | public.st1_idx | 30 | 10000 | 0 | 30
+ 2 | st1_exp | public.st1_exp | 30 | 10000 | 0 | 30
+ 3 | s0.st0 | s0.st0 | 1 | 2 | 1 | 1
+ 5 | s0.st0 | s0.st0 | 1 | 2 | 1 | 1
+ 6 | s0.st0 | s0.st0 | 1 | 2 | 1 | 1
+ 7 | st0 | public.st0 | 1 | 2 | 1 | 1
+ 8 | s0.st0 | s0.st0 | 1 | 2 | 1 | 1
+ 8 | s0.st0_idx | s0.st0_idx | 2 | 2 | 0 | 2
+ 8 | s0.st1 | s0.st1 | 1 | 3 | 1 | 1
+ 8 | s0.st1_idx | s0.st1_idx | 2 | 3 | 0 | 2
+ 8 | s0.st2 | s0.st2 | 1 | 3 | 1 | 1
+ 8 | s0.st2_idx | s0.st2_idx | 2 | 3 | 0 | 2
+(25 rows)
+
+SELECT * FROM columns_backup_v;
+ id | statypid | starelid | staattnum | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+----+----------+----------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+------------------------+-------------+-------------+-------------+-------------+------------------+------------+------------+------------+------------
+ 2 | 23 | st0 | 1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2} | (null) | (null) | (null) | (null)
+ 2 | 1042 | st0 | 2 | f | 0 | 6 | -0.5 | 1 | 3 | 0 | 0 | 0 | 1054 | 1058 | 0 | 0 | 0 | {1} | {1} | (null) | (null) | (null) | {"test "} | (null) | (null) | (null) | (null)
+ 2 | 23 | st1 | 1 | f | 0 | 4 | 3 | 1 | 3 | 0 | 0 | 0 | 96 | 97 | 0 | 0 | 0 | {0.3334,0.3333,0.3333} | {0.3332} | (null) | (null) | (null) | {1,0,2} | (null) | (null) | (null) | (null)
+ 2 | 25 | st1 | 2 | f | 0 | 2 | 3 | 1 | 3 | 0 | 0 | 0 | 98 | 664 | 0 | 0 | 0 | {0.3334,0.3333,0.3333} | {0.3332} | (null) | (null) | (null) | {1,0,2} | (null) | (null) | (null) | (null)
+ 2 | 23 | s0.st0 | 1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2} | (null) | (null) | (null) | (null)
+ 2 | 23 | s0.st0 | 1 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null) | (null)
+ 2 | 23 | s0.st0 | 2 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {10,20} | (null) | (null) | (null) | (null)
+ 2 | 23 | s0.st0 | 2 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {10,20,40,50,60} | (null) | (null) | (null) | (null)
+ 2 | 23 | s0.st1 | 1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {4,5,6} | (null) | (null) | (null) | (null)
+ 2 | 23 | s0.st1 | 2 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {40,50,60} | (null) | (null) | (null) | (null)
+ 2 | 23 | s0.st2 | 1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2,3} | (null) | (null) | (null) | (null)
+ 2 | 25 | s0.st2 | 2 | f | 0 | 5 | -1 | 2 | 3 | 0 | 0 | 0 | 664 | 664 | 0 | 0 | 0 | (null) | {0.5} | (null) | (null) | (null) | {1,comment,test} | (null) | (null) | (null) | (null)
+ 2 | 23 | s1.st0 | 1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2,3,4} | (null) | (null) | (null) | (null)
+ 2 | 23 | s1.st0 | 2 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {15,25,35,45} | (null) | (null) | (null) | (null)
+ 2 | 25 | st1_exp | 1 | f | 0 | 5 | 3 | 1 | 3 | 0 | 0 | 0 | 98 | 664 | 0 | 0 | 0 | {0.3334,0.3333,0.3333} | {0.3332} | (null) | (null) | (null) | {1,0,2} | (null) | (null) | (null) | (null)
+ 3 | 23 | s0.st0 | 1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2} | (null) | (null) | (null) | (null)
+ 3 | 23 | s0.st0 | 1 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null) | (null)
+ 3 | 23 | s0.st0 | 2 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {10,20} | (null) | (null) | (null) | (null)
+ 3 | 23 | s0.st0 | 2 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {10,20,40,50,60} | (null) | (null) | (null) | (null)
+ 5 | 23 | s0.st0 | 1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2} | (null) | (null) | (null) | (null)
+ 5 | 23 | s0.st0 | 1 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null) | (null)
+ 6 | 23 | s0.st0 | 1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2} | (null) | (null) | (null) | (null)
+ 6 | 23 | s0.st0 | 1 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null) | (null)
+ 6 | 23 | s0.st0 | 2 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {10,20} | (null) | (null) | (null) | (null)
+ 6 | 23 | s0.st0 | 2 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {10,20,40,50,60} | (null) | (null) | (null) | (null)
+ 7 | 23 | st0 | 1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2} | (null) | (null) | (null) | (null)
+ 7 | 1042 | st0 | 2 | f | 0 | 6 | -0.5 | 1 | 3 | 0 | 0 | 0 | 1054 | 1058 | 0 | 0 | 0 | {1} | {1} | (null) | (null) | (null) | {"test "} | (null) | (null) | (null) | (null)
+ 8 | 23 | s0.st0 | 1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2} | (null) | (null) | (null) | (null)
+ 8 | 23 | s0.st0 | 1 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null) | (null)
+ 8 | 23 | s0.st0 | 2 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {10,20} | (null) | (null) | (null) | (null)
+ 8 | 23 | s0.st0 | 2 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {10,20,40,50,60} | (null) | (null) | (null) | (null)
+ 8 | 23 | s0.st1 | 1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {4,5,6} | (null) | (null) | (null) | (null)
+ 8 | 23 | s0.st1 | 2 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {40,50,60} | (null) | (null) | (null) | (null)
+ 8 | 23 | s0.st2 | 1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2,3} | (null) | (null) | (null) | (null)
+ 8 | 25 | s0.st2 | 2 | f | 0 | 5 | -1 | 2 | 3 | 0 | 0 | 0 | 664 | 664 | 0 | 0 | 0 | (null) | {0.5} | (null) | (null) | (null) | {1,comment,test} | (null) | (null) | (null) | (null)
+(35 rows)
+
+VACUUM ANALYZE;
+/*
+ * No.9-1 dbms_stats.restore
+ */
+-- No.9-1-1
+DELETE FROM dbms_stats._relation_stats_locked;
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+----------+---------------
+ (null) | ExclusiveLock
+(1 row)
+
+SELECT dbms_stats.restore(2, 's0.st0', NULL);
+ restore
+---------
+ s0.st0
+(1 row)
+
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+----------------------------------------+--------------------------
+ dbms_stats._column_stats_locked | RowExclusiveLock
+ dbms_stats._column_stats_locked | ShareUpdateExclusiveLock
+ dbms_stats._column_stats_locked_pkey | RowExclusiveLock
+ dbms_stats._relation_stats_locked | RowExclusiveLock
+ dbms_stats._relation_stats_locked | ShareUpdateExclusiveLock
+ dbms_stats._relation_stats_locked_pkey | RowExclusiveLock
+ (null) | ExclusiveLock
+ (null) | ExclusiveLock
+(8 rows)
+
+COMMIT;
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+--------
+ s0.st0
+(1 row)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+(4 rows)
+
+-- No.9-1-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, 'st0', NULL);
+ restore
+---------
+ st0
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+-------
+ st0
+(1 row)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+(2 rows)
+
+-- No.9-1-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, 's00.s0', NULL);
+ERROR: schema "s00" does not exist
+LINE 1: SELECT dbms_stats.restore(2, 's00.s0', NULL);
+ ^
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+-- No.9-1-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(NULL, 's0.st0', NULL);
+ERROR: backup id is required
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+-- No.9-1-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, 's0.st0', 'id');
+ restore
+---------
+ s0.st0
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+--------
+ s0.st0
+(1 row)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ s0.st0 | id | f
+ s0.st0 | id | t
+(2 rows)
+
+-- No.9-1-6
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, NULL, 'id');
+ERROR: relation is required
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+-- No.9-1-7
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, 's0.st0', NULL);
+ restore
+---------
+ s0.st0
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+--------
+ s0.st0
+(1 row)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+(4 rows)
+
+-- No.9-1-8
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, NULL, NULL);
+ restore
+------------
+ pt0
+ pt0_idx
+ s0.sft0
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s1.st0
+ st0
+ st0_idx
+ st1
+ st1_exp
+ st1_idx
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ s1.st0
+ st1_idx
+ st1_exp
+(15 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+ st1_exp | lower | f
+(15 rows)
+
+-- No.9-1-9
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(0, 's0.st0', NULL);
+ERROR: backup id 0 does not exist
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+-------
+(0 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+(0 rows)
+
+-- No.9-1-10
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, 0, 'id');
+ERROR: relation "-" does not exist
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+-- No.9-1-11
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(1, 's0.st0', NULL);
+ERROR: relation "s0.st0" does not exist in previous backup
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+-- No.9-1-12
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, 's0.st0', 'dummy');
+ERROR: column "dummy" of "s0.st0" does not exist
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+-- No.9-1-13
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(1, 's0.st0', 'id');
+ERROR: relation "s0.st0" does not exist in previous backup
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+-- No.9-1-15
+DELETE FROM dbms_stats._relation_stats_locked;
+ALTER TABLE s1.st0 DROP COLUMN id;
+SELECT dbms_stats.restore(2, 's1.st0', 'id');
+ERROR: column "id" of "s1.st0" does not exist
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+-------
+(0 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+(0 rows)
+
+-- No.9-1-14
+DELETE FROM dbms_stats._relation_stats_locked;
+\set s1_st0_oid `psql contrib_regression -tA -c "SELECT c.oid FROM pg_class c, pg_namespace n WHERE c.relnamespace = n.oid AND n.nspname = 's1' AND c.relname = 'st0';"`
+DROP TABLE s1.st0;
+SET client_min_messages TO FATAL;
+SELECT dbms_stats.restore(2, :s1_st0_oid, NULL);
+RESET client_min_messages;
+\! tail ${PGDATA}/pg_log/postgresql.log > results/ut_no3_1_14.out
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+CREATE TABLE s1.st0(id integer, num integer);
+INSERT INTO s1.st0 VALUES (1, 15), (2, 25), (3, 35), (4, 45);
+VACUUM ANALYZE;
+-- No.9-1-16
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, 's0.st0', NULL);
+ restore
+---------
+ s0.st0
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+--------
+ s0.st0
+(1 row)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+(4 rows)
+
+-- No.9-1-17
+DELETE FROM dbms_stats._relation_stats_locked;
+INSERT INTO dbms_stats.relation_stats_backup(
+ id, relid, relname, relpages, reltuples,
+ relallvisible,
+ curpages)
+ VALUES (2,
+ 'pg_toast.pg_toast_2618'::regclass,
+ 'pg_toast.pg_toast_2618', 1, 1,
+ 1,
+ 1);
+SELECT * FROM relations_backup_v
+ WHERE id = 2
+ AND relname = 'pg_toast.pg_toast_2618';
+ id | relid | relname | relpages | reltuples | relallvisible | curpages
+----+------------------------+------------------------+----------+-----------+---------------+----------
+ 2 | pg_toast.pg_toast_2618 | pg_toast.pg_toast_2618 | 1 | 1 | 1 | 1
+(1 row)
+
+SELECT dbms_stats.restore(2, 'pg_toast.pg_toast_2618', NULL);
+ restore
+---------
+(0 rows)
+
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+DELETE FROM dbms_stats.relation_stats_backup
+ WHERE id = 2
+ AND relname = 'pg_toast.pg_toast_2618';
+-- No.9-1-18
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, 's0.st0_idx', NULL);
+ restore
+------------
+ s0.st0_idx
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ s0.st0_idx
+(1 row)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+(0 rows)
+
+-- No.9-1-19
+DELETE FROM dbms_stats._relation_stats_locked;
+INSERT INTO dbms_stats.relation_stats_backup(
+ id, relid, relname, relpages, reltuples,
+ relallvisible,
+ curpages)
+ VALUES (2, 's0.ss0'::regclass, 's0.ss0', 1, 1,
+ 1,
+ 1);
+SELECT * FROM relations_backup_v
+ WHERE id = 2
+ AND relname = 's0.ss0';
+ id | relid | relname | relpages | reltuples | relallvisible | curpages
+----+--------+---------+----------+-----------+---------------+----------
+ 2 | s0.ss0 | s0.ss0 | 1 | 1 | 1 | 1
+(1 row)
+
+SELECT dbms_stats.restore(2, 's0.ss0', NULL);
+ restore
+---------
+(0 rows)
+
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+DELETE FROM dbms_stats.relation_stats_backup
+ WHERE id = 2
+ AND relname = 's0.ss0';
+-- No.9-1-20
+DELETE FROM dbms_stats._relation_stats_locked;
+INSERT INTO dbms_stats.relation_stats_backup(
+ id, relid, relname, relpages, reltuples,
+ relallvisible,
+ curpages)
+ VALUES (2, 's0.sc0'::regclass, 's0.sc0', 1, 1,
+ 1,
+ 1);
+SELECT * FROM relations_backup_v
+ WHERE id = 2
+ AND relname = 's0.sc0';
+ id | relid | relname | relpages | reltuples | relallvisible | curpages
+----+--------+---------+----------+-----------+---------------+----------
+ 2 | s0.sc0 | s0.sc0 | 1 | 1 | 1 | 1
+(1 row)
+
+SELECT dbms_stats.restore(2, 's0.sc0', NULL);
+ restore
+---------
+(0 rows)
+
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+DELETE FROM dbms_stats.relation_stats_backup
+ WHERE id = 2
+ AND relname = 's0.sc0';
+-- No.9-1-21
+DELETE FROM dbms_stats._relation_stats_locked;
+INSERT INTO dbms_stats.relation_stats_backup(
+ id, relid, relname, relpages, reltuples,
+ relallvisible,
+ curpages)
+ VALUES (3, 's0.sft0'::regclass, 's0.sft0', 1, 1,
+ 1,
+ 1);
+SELECT * FROM relations_backup_v
+ WHERE id = 3
+ AND relname = 's0.sft0';
+ id | relid | relname | relpages | reltuples | relallvisible | curpages
+----+---------+---------+----------+-----------+---------------+----------
+ 3 | s0.sft0 | s0.sft0 | 1 | 1 | 1 | 1
+(1 row)
+
+SELECT dbms_stats.restore(2, 's0.sft0', NULL);
+ restore
+---------
+ s0.sft0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+ count
+-------
+ 1
+(1 row)
+
+DELETE FROM dbms_stats.relation_stats_backup
+ WHERE id = 3
+ AND relname = 's0.sft0';
+-- No.9-1-22
+DELETE FROM dbms_stats._relation_stats_locked;
+INSERT INTO dbms_stats.relation_stats_backup(
+ id, relid, relname, relpages, reltuples,
+ relallvisible,
+ curpages)
+ VALUES (2, 'pg_catalog.pg_class'::regclass, 'pg_catalog.pg_class', 1, 1,
+ 1,
+ 1);
+SELECT * FROM relations_backup_v
+ WHERE id = 2
+ AND relname = 'pg_catalog.pg_class';
+ id | relid | relname | relpages | reltuples | relallvisible | curpages
+----+----------+---------------------+----------+-----------+---------------+----------
+ 2 | pg_class | pg_catalog.pg_class | 1 | 1 | 1 | 1
+(1 row)
+
+SELECT dbms_stats.restore(2, 'pg_catalog.pg_class', NULL);
+ restore
+---------
+(0 rows)
+
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+DELETE FROM dbms_stats.relation_stats_backup
+ WHERE id = 2
+ AND relname = 'pg_catalog.pg_class';
+-- No.9-1-23
+DELETE FROM dbms_stats._relation_stats_locked;
+INSERT INTO dbms_stats._relation_stats_locked(relid, relname)
+ VALUES ('s0.st0'::regclass, 's0.st0');
+INSERT INTO dbms_stats._column_stats_locked(starelid, staattnum, stainherit)
+ SELECT starelid::regclass, staattnum, stainherit
+ FROM dbms_stats.column_stats_effective
+ WHERE starelid = 's0.st0'::regclass;
+SELECT id, unit, comment FROM dbms_stats.backup_history
+ WHERE id = 2;
+ id | unit | comment
+----+------+---------
+ 2 | d | (null)
+(1 row)
+
+SELECT * FROM columns_locked_v;
+ starelid | staattnum | attname | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+----------+-----------+---------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------+------------+------------+------------+------------
+ s0.st0 | 1 | id | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0.st0 | 1 | id | t | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0.st0 | 2 | num | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0.st0 | 2 | num | t | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+(4 rows)
+
+SELECT * FROM relations_locked_v;
+ relid | relname | relpages | reltuples | relallvisible | curpages
+--------+---------+----------+-----------+---------------+----------
+ s0.st0 | s0.st0 | (null) | (null) | (null) | (null)
+(1 row)
+
+SELECT dbms_stats.restore(2, 's0.st0', NULL);
+ restore
+---------
+ s0.st0
+(1 row)
+
+SELECT * FROM relations_locked_v;
+ relid | relname | relpages | reltuples | relallvisible | curpages
+--------+---------+----------+-----------+---------------+----------
+ s0.st0 | s0.st0 | 1 | 2 | 1 | 1
+(1 row)
+
+SELECT * FROM columns_locked_v;
+ starelid | staattnum | attname | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+----------+-----------+---------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------------+------------+------------+------------+------------
+ s0.st0 | 1 | id | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2} | (null) | (null) | (null) | (null)
+ s0.st0 | 1 | id | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null) | (null)
+ s0.st0 | 2 | num | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {10,20} | (null) | (null) | (null) | (null)
+ s0.st0 | 2 | num | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {10,20,40,50,60} | (null) | (null) | (null) | (null)
+(4 rows)
+
+-- No.9-1-24
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT id, unit, comment FROM dbms_stats.backup_history
+ WHERE id = 2;
+ id | unit | comment
+----+------+---------
+ 2 | d | (null)
+(1 row)
+
+SELECT dbms_stats.restore(2, 's0.st0', NULL);
+ restore
+---------
+ s0.st0
+(1 row)
+
+SELECT * FROM relations_locked_v;
+ relid | relname | relpages | reltuples | relallvisible | curpages
+--------+---------+----------+-----------+---------------+----------
+ s0.st0 | s0.st0 | 1 | 2 | 1 | 1
+(1 row)
+
+SELECT * FROM columns_locked_v;
+ starelid | staattnum | attname | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+----------+-----------+---------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------------+------------+------------+------------+------------
+ s0.st0 | 1 | id | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2} | (null) | (null) | (null) | (null)
+ s0.st0 | 1 | id | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null) | (null)
+ s0.st0 | 2 | num | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {10,20} | (null) | (null) | (null) | (null)
+ s0.st0 | 2 | num | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {10,20,40,50,60} | (null) | (null) | (null) | (null)
+(4 rows)
+
+/*
+ * Stab function dbms_stats.restore
+ */
+CREATE OR REPLACE FUNCTION dbms_stats.restore(
+ backup_id int8,
+ relid regclass DEFAULT NULL,
+ attname text DEFAULT NULL)
+RETURNS SETOF regclass AS
+$$
+BEGIN
+ RAISE NOTICE 'arguments are "%, %, %"', $1, $2, $3;
+ RETURN QUERY
+ SELECT c.oid::regclass
+ FROM pg_class c, dbms_stats.relation_stats_backup b
+ WHERE (c.oid = $2 OR $2 IS NULL)
+ AND c.oid = b.relid
+ AND c.relkind IN ('r', 'i')
+ AND (b.id <= $1 OR $1 IS NOT NULL)
+ GROUP BY c.oid
+ ORDER BY c.oid::regclass::text;
+END;
+$$
+LANGUAGE plpgsql;
+/*
+ * No.10-1 dbms_stats.restore_database_stats
+ */
+-- No.10-1-1
+SELECT dbms_stats.restore_database_stats('2012-02-29 23:59:57');
+NOTICE: arguments are "2, pt0, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, pt0_idx, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, st0, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, st0_idx, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, st1, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, s0.st0, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, s0.st0_idx, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, s0.st1, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, s0.st1_idx, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, s0.st2, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, s0.st2_idx, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, s0.sft0, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, st1_idx, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, st1_exp, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+ restore_database_stats
+------------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+(13 rows)
+
+-- No.10-1-2
+SELECT dbms_stats.restore_database_stats('2012-02-29 23:59:57.000002');
+NOTICE: arguments are "2, pt0, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, pt0_idx, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, st0, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, st0_idx, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, st1, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "3, s0.st0, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, s0.st0_idx, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, s0.st1, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, s0.st1_idx, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, s0.st2, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, s0.st2_idx, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, s0.sft0, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, st1_idx, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, st1_exp, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+ restore_database_stats
+------------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+(13 rows)
+
+-- No.10-1-3
+SELECT dbms_stats.restore_database_stats('2012-01-01 00:00:00');
+ restore_database_stats
+------------------------
+(0 rows)
+
+--#No.10-1-4 is skipped after lock tests
+--#No.10-1-5 is skipped after lock tests
+-- No.10-1-6
+SELECT dbms_stats.restore_database_stats('2012-02-29 23:59:57');
+NOTICE: arguments are "2, pt0, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, pt0_idx, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, st0, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, st0_idx, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, st1, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, s0.st0, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, s0.st0_idx, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, s0.st1, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, s0.st1_idx, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, s0.st2, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, s0.st2_idx, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, s0.sft0, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, st1_idx, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+NOTICE: arguments are "2, st1_exp, <NULL>"
+CONTEXT: SQL function "restore_database_stats" statement 1
+ restore_database_stats
+------------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+(13 rows)
+
+/*
+ * No.10-2 dbms_stats.restore_schema_stats
+ */
+-- No.10-2-1
+SELECT dbms_stats.restore_schema_stats('s0', '2012-02-29 23:59:57');
+NOTICE: arguments are "2, s0.st0, <NULL>"
+CONTEXT: PL/pgSQL function dbms_stats.restore_schema_stats(text,timestamp with time zone) line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st0_idx, <NULL>"
+CONTEXT: PL/pgSQL function dbms_stats.restore_schema_stats(text,timestamp with time zone) line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st1, <NULL>"
+CONTEXT: PL/pgSQL function dbms_stats.restore_schema_stats(text,timestamp with time zone) line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st1_idx, <NULL>"
+CONTEXT: PL/pgSQL function dbms_stats.restore_schema_stats(text,timestamp with time zone) line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st2, <NULL>"
+CONTEXT: PL/pgSQL function dbms_stats.restore_schema_stats(text,timestamp with time zone) line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st2_idx, <NULL>"
+CONTEXT: PL/pgSQL function dbms_stats.restore_schema_stats(text,timestamp with time zone) line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.sft0, <NULL>"
+CONTEXT: PL/pgSQL function dbms_stats.restore_schema_stats(text,timestamp with time zone) line 10 at RETURN QUERY
+ restore_schema_stats
+----------------------
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+(6 rows)
+
+-- No.10-2-2
+SELECT dbms_stats.restore_schema_stats('s0', '2012-02-29 23:59:57.000002');
+NOTICE: arguments are "3, s0.st0, <NULL>"
+CONTEXT: PL/pgSQL function dbms_stats.restore_schema_stats(text,timestamp with time zone) line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st0_idx, <NULL>"
+CONTEXT: PL/pgSQL function dbms_stats.restore_schema_stats(text,timestamp with time zone) line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st1, <NULL>"
+CONTEXT: PL/pgSQL function dbms_stats.restore_schema_stats(text,timestamp with time zone) line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st1_idx, <NULL>"
+CONTEXT: PL/pgSQL function dbms_stats.restore_schema_stats(text,timestamp with time zone) line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st2, <NULL>"
+CONTEXT: PL/pgSQL function dbms_stats.restore_schema_stats(text,timestamp with time zone) line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st2_idx, <NULL>"
+CONTEXT: PL/pgSQL function dbms_stats.restore_schema_stats(text,timestamp with time zone) line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.sft0, <NULL>"
+CONTEXT: PL/pgSQL function dbms_stats.restore_schema_stats(text,timestamp with time zone) line 10 at RETURN QUERY
+ restore_schema_stats
+----------------------
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+(6 rows)
+
+-- No.10-2-3
+SELECT dbms_stats.restore_schema_stats('s0', '2012-01-01 00:00:00');
+ restore_schema_stats
+----------------------
+(0 rows)
+
+--#No.10-2-4 is skipped after lock tests
+--#No.10-2-5 is skipped after lock tests
+-- No.10-2-6
+SELECT dbms_stats.restore_schema_stats('s0', '2012-02-29 23:59:57');
+NOTICE: arguments are "2, s0.st0, <NULL>"
+CONTEXT: PL/pgSQL function dbms_stats.restore_schema_stats(text,timestamp with time zone) line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st0_idx, <NULL>"
+CONTEXT: PL/pgSQL function dbms_stats.restore_schema_stats(text,timestamp with time zone) line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st1, <NULL>"
+CONTEXT: PL/pgSQL function dbms_stats.restore_schema_stats(text,timestamp with time zone) line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st1_idx, <NULL>"
+CONTEXT: PL/pgSQL function dbms_stats.restore_schema_stats(text,timestamp with time zone) line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st2, <NULL>"
+CONTEXT: PL/pgSQL function dbms_stats.restore_schema_stats(text,timestamp with time zone) line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st2_idx, <NULL>"
+CONTEXT: PL/pgSQL function dbms_stats.restore_schema_stats(text,timestamp with time zone) line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.sft0, <NULL>"
+CONTEXT: PL/pgSQL function dbms_stats.restore_schema_stats(text,timestamp with time zone) line 10 at RETURN QUERY
+ restore_schema_stats
+----------------------
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+(6 rows)
+
+-- No.10-2-7
+SELECT dbms_stats.restore_schema_stats('s0', '2012-02-29 23:59:57');
+NOTICE: arguments are "2, s0.st0, <NULL>"
+CONTEXT: PL/pgSQL function dbms_stats.restore_schema_stats(text,timestamp with time zone) line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st0_idx, <NULL>"
+CONTEXT: PL/pgSQL function dbms_stats.restore_schema_stats(text,timestamp with time zone) line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st1, <NULL>"
+CONTEXT: PL/pgSQL function dbms_stats.restore_schema_stats(text,timestamp with time zone) line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st1_idx, <NULL>"
+CONTEXT: PL/pgSQL function dbms_stats.restore_schema_stats(text,timestamp with time zone) line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st2, <NULL>"
+CONTEXT: PL/pgSQL function dbms_stats.restore_schema_stats(text,timestamp with time zone) line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.st2_idx, <NULL>"
+CONTEXT: PL/pgSQL function dbms_stats.restore_schema_stats(text,timestamp with time zone) line 10 at RETURN QUERY
+NOTICE: arguments are "2, s0.sft0, <NULL>"
+CONTEXT: PL/pgSQL function dbms_stats.restore_schema_stats(text,timestamp with time zone) line 10 at RETURN QUERY
+ restore_schema_stats
+----------------------
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+(6 rows)
+
+--#No.10-2-8 is skipped after lock tests
+-- No.10-2-9
+SELECT dbms_stats.restore_schema_stats('s00', '2012-02-29 23:59:57');
+ERROR: schema "s00" does not exist
+-- No.10-2-10
+SELECT dbms_stats.restore_schema_stats('pg_catalog', '2012-02-29 23:59:57');
+ERROR: can not restore statistics of relation in system schema "pg_catalog"
+/*
+ * No.10-7 dbms_stats.restore_stats
+ */
+-- No.10-7-1
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore_stats(NULL);
+ restore_stats
+---------------
+(0 rows)
+
+-- No.10-7-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore_stats(0);
+ERROR: backup id 0 does not exist
+-- No.10-7-3
+DELETE FROM dbms_stats._relation_stats_locked;
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+----------+---------------
+ (null) | ExclusiveLock
+(1 row)
+
+SELECT dbms_stats.restore_stats(2);
+ restore_stats
+---------------
+ pt0
+ pt0_idx
+ s0.sft0
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st0
+ st0_idx
+ st1
+ st1_exp
+ st1_idx
+(14 rows)
+
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+----------------------------------------+--------------------------
+ dbms_stats._column_stats_locked | RowExclusiveLock
+ dbms_stats._column_stats_locked | ShareUpdateExclusiveLock
+ dbms_stats._column_stats_locked_pkey | RowExclusiveLock
+ dbms_stats._relation_stats_locked | RowExclusiveLock
+ dbms_stats._relation_stats_locked | ShareUpdateExclusiveLock
+ dbms_stats._relation_stats_locked_pkey | RowExclusiveLock
+ (null) | ExclusiveLock
+ (null) | ExclusiveLock
+(8 rows)
+
+COMMIT;
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+(14 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+(13 rows)
+
+-- No.10-7-4
+DELETE FROM dbms_stats._relation_stats_locked;
+INSERT INTO dbms_stats._relation_stats_locked(relid, relname)
+ SELECT relid::regclass, relname
+ FROM dbms_stats.relation_stats_effective;
+INSERT INTO dbms_stats._column_stats_locked(starelid, staattnum, stainherit)
+ SELECT starelid::regclass, staattnum, stainherit
+ FROM dbms_stats.column_stats_effective;
+SELECT id, unit, comment FROM dbms_stats.backup_history
+ WHERE id = 8;
+ id | unit | comment
+----+------+---------
+ 8 | s | (null)
+(1 row)
+
+SELECT * FROM columns_locked_v;
+ starelid | staattnum | attname | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+----------+-----------+---------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------+------------+------------+------------+------------
+ st0 | 1 | id | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ st0 | 2 | name | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ st1 | 1 | val | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ st1 | 2 | str | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0.st0 | 1 | id | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0.st0 | 1 | id | t | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0.st0 | 2 | num | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0.st0 | 2 | num | t | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0.st1 | 1 | id | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0.st1 | 2 | num | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0.st2 | 1 | id | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0.st2 | 2 | txt | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ st1_exp | 1 | lower | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s1.st0 | 1 | id | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s1.st0 | 2 | num | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+(15 rows)
+
+SELECT * FROM relations_locked_v;
+ relid | relname | relpages | reltuples | relallvisible | curpages
+------------+----------------+----------+-----------+---------------+----------
+ pt0 | public.pt0 | (null) | (null) | (null) | (null)
+ pt0_idx | public.pt0_idx | (null) | (null) | (null) | (null)
+ st0 | public.st0 | (null) | (null) | (null) | (null)
+ st0_idx | public.st0_idx | (null) | (null) | (null) | (null)
+ st1 | public.st1 | (null) | (null) | (null) | (null)
+ s0.st0 | s0.st0 | (null) | (null) | (null) | (null)
+ s0.st0_idx | s0.st0_idx | (null) | (null) | (null) | (null)
+ s0.st1 | s0.st1 | (null) | (null) | (null) | (null)
+ s0.st1_idx | s0.st1_idx | (null) | (null) | (null) | (null)
+ s0.st2 | s0.st2 | (null) | (null) | (null) | (null)
+ s0.st2_idx | s0.st2_idx | (null) | (null) | (null) | (null)
+ s0.sft0 | s0.sft0 | (null) | (null) | (null) | (null)
+ st1_idx | public.st1_idx | (null) | (null) | (null) | (null)
+ st1_exp | public.st1_exp | (null) | (null) | (null) | (null)
+ s1.st0 | s1.st0 | (null) | (null) | (null) | (null)
+(15 rows)
+
+SELECT dbms_stats.restore_stats(8);
+ restore_stats
+---------------
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+(6 rows)
+
+SELECT * FROM relations_locked_v;
+ relid | relname | relpages | reltuples | relallvisible | curpages
+------------+----------------+----------+-----------+---------------+----------
+ pt0 | public.pt0 | (null) | (null) | (null) | (null)
+ pt0_idx | public.pt0_idx | (null) | (null) | (null) | (null)
+ st0 | public.st0 | (null) | (null) | (null) | (null)
+ st0_idx | public.st0_idx | (null) | (null) | (null) | (null)
+ st1 | public.st1 | (null) | (null) | (null) | (null)
+ s0.st0 | s0.st0 | 1 | 2 | 1 | 1
+ s0.st0_idx | s0.st0_idx | 2 | 2 | 0 | 2
+ s0.st1 | s0.st1 | 1 | 3 | 1 | 1
+ s0.st1_idx | s0.st1_idx | 2 | 3 | 0 | 2
+ s0.st2 | s0.st2 | 1 | 3 | 1 | 1
+ s0.st2_idx | s0.st2_idx | 2 | 3 | 0 | 2
+ s0.sft0 | s0.sft0 | (null) | (null) | (null) | (null)
+ st1_idx | public.st1_idx | (null) | (null) | (null) | (null)
+ st1_exp | public.st1_exp | (null) | (null) | (null) | (null)
+ s1.st0 | s1.st0 | (null) | (null) | (null) | (null)
+(15 rows)
+
+SELECT * FROM columns_locked_v;
+ starelid | staattnum | attname | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+----------+-----------+---------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------------+------------+------------+------------+------------
+ st0 | 1 | id | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ st0 | 2 | name | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ st1 | 1 | val | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ st1 | 2 | str | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0.st0 | 1 | id | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2} | (null) | (null) | (null) | (null)
+ s0.st0 | 1 | id | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null) | (null)
+ s0.st0 | 2 | num | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {10,20} | (null) | (null) | (null) | (null)
+ s0.st0 | 2 | num | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {10,20,40,50,60} | (null) | (null) | (null) | (null)
+ s0.st1 | 1 | id | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {4,5,6} | (null) | (null) | (null) | (null)
+ s0.st1 | 2 | num | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {40,50,60} | (null) | (null) | (null) | (null)
+ s0.st2 | 1 | id | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2,3} | (null) | (null) | (null) | (null)
+ s0.st2 | 2 | txt | f | 0 | 5 | -1 | 2 | 3 | 0 | 0 | 0 | 664 | 664 | 0 | 0 | 0 | (null) | {0.5} | (null) | (null) | (null) | {1,comment,test} | (null) | (null) | (null) | (null)
+ st1_exp | 1 | lower | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s1.st0 | 1 | id | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s1.st0 | 2 | num | f | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+(15 rows)
+
+-- No.10-7-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT id, unit, comment FROM dbms_stats.backup_history
+ WHERE id = 8;
+ id | unit | comment
+----+------+---------
+ 8 | s | (null)
+(1 row)
+
+SELECT dbms_stats.restore_stats(8);
+ restore_stats
+---------------
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+(6 rows)
+
+SELECT * FROM relations_locked_v;
+ relid | relname | relpages | reltuples | relallvisible | curpages
+------------+------------+----------+-----------+---------------+----------
+ s0.st0 | s0.st0 | 1 | 2 | 1 | 1
+ s0.st0_idx | s0.st0_idx | 2 | 2 | 0 | 2
+ s0.st1 | s0.st1 | 1 | 3 | 1 | 1
+ s0.st1_idx | s0.st1_idx | 2 | 3 | 0 | 2
+ s0.st2 | s0.st2 | 1 | 3 | 1 | 1
+ s0.st2_idx | s0.st2_idx | 2 | 3 | 0 | 2
+(6 rows)
+
+SELECT * FROM columns_locked_v;
+ starelid | staattnum | attname | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+----------+-----------+---------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------------+------------+------------+------------+------------
+ s0.st0 | 1 | id | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2} | (null) | (null) | (null) | (null)
+ s0.st0 | 1 | id | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null) | (null)
+ s0.st0 | 2 | num | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {10,20} | (null) | (null) | (null) | (null)
+ s0.st0 | 2 | num | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {10,20,40,50,60} | (null) | (null) | (null) | (null)
+ s0.st1 | 1 | id | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {4,5,6} | (null) | (null) | (null) | (null)
+ s0.st1 | 2 | num | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {40,50,60} | (null) | (null) | (null) | (null)
+ s0.st2 | 1 | id | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2,3} | (null) | (null) | (null) | (null)
+ s0.st2 | 2 | txt | f | 0 | 5 | -1 | 2 | 3 | 0 | 0 | 0 | 664 | 664 | 0 | 0 | 0 | (null) | {0.5} | (null) | (null) | (null) | {1,comment,test} | (null) | (null) | (null) | (null)
+(8 rows)
+
+/*
+ * No.11-1 dbms_stats.lock(relid, attname)
+ */
+-- No.11-1-1
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock(NULL, NULL);
+ERROR: relation is required
+-- No.11-1-2
+ALTER FUNCTION dbms_stats.lock(relid regclass)
+ RENAME TO truth_lock;
+CREATE FUNCTION dbms_stats.lock(relid regclass)
+RETURNS regclass AS
+$$
+BEGIN
+ RAISE NOTICE 'arguments are %', $1;
+ RETURN $1;
+END
+$$
+LANGUAGE plpgsql;
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.st0', NULL);
+NOTICE: arguments are s0.st0
+CONTEXT: PL/pgSQL function dbms_stats.lock(regclass,text) line 11 at RETURN
+ lock
+--------
+ s0.st0
+(1 row)
+
+DROP FUNCTION dbms_stats.lock(relid regclass);
+ALTER FUNCTION dbms_stats.truth_lock(relid regclass)
+ RENAME TO lock;
+-- No.11-1-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock(NULL, 'id');
+ERROR: relation is required
+-- No.11-1-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.st0', 'id');
+ lock
+--------
+ s0.st0
+(1 row)
+
+SELECT * FROM relations_locked_v;
+ relid | relname | relpages | reltuples | relallvisible | curpages
+--------+---------+----------+-----------+---------------+----------
+ s0.st0 | s0.st0 | (null) | (null) | (null) | (null)
+(1 row)
+
+SELECT * FROM columns_locked_v c;
+ starelid | staattnum | attname | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+----------+-----------+---------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+-------------+------------+------------+------------+------------
+ s0.st0 | 1 | id | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2} | (null) | (null) | (null) | (null)
+ s0.st0 | 1 | id | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null) | (null)
+(2 rows)
+
+-- No.11-1-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock(0, 'id');
+ERROR: relation "-" does not exist
+-- No.11-1-6
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.st0', 'id');
+ lock
+--------
+ s0.st0
+(1 row)
+
+SELECT * FROM relations_locked_v;
+ relid | relname | relpages | reltuples | relallvisible | curpages
+--------+---------+----------+-----------+---------------+----------
+ s0.st0 | s0.st0 | (null) | (null) | (null) | (null)
+(1 row)
+
+SELECT * FROM columns_locked_v c;
+ starelid | staattnum | attname | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+----------+-----------+---------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+-------------+------------+------------+------------+------------
+ s0.st0 | 1 | id | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2} | (null) | (null) | (null) | (null)
+ s0.st0 | 1 | id | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null) | (null)
+(2 rows)
+
+-- No.11-1-7
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('pg_toast.pg_toast_2618', 'id');
+ERROR: "pg_toast.pg_toast_2618" is not a table nor an index
+-- No.11-1-8
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.st0_idx', 'id');
+ERROR: "s0.st0_idx" is not an indexes on expressions
+-- No.11-1-9
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('st1_exp', 'lower');
+ lock
+---------
+ st1_exp
+(1 row)
+
+SELECT * FROM relations_locked_v;
+ relid | relname | relpages | reltuples | relallvisible | curpages
+---------+----------------+----------+-----------+---------------+----------
+ st1_exp | public.st1_exp | (null) | (null) | (null) | (null)
+(1 row)
+
+SELECT * FROM columns_locked_v c;
+ starelid | staattnum | attname | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+----------+-----------+---------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+------------------------+-------------+-------------+-------------+-------------+------------+------------+------------+------------+------------
+ st1_exp | 1 | lower | f | 0 | 5 | 3 | 1 | 3 | 0 | 0 | 0 | 98 | 664 | 0 | 0 | 0 | {0.3334,0.3333,0.3333} | {0.3332} | (null) | (null) | (null) | {1,0,2} | (null) | (null) | (null) | (null)
+(1 row)
+
+DELETE FROM dbms_stats._relation_stats_locked;
+-- No.11-1-10
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.ss0', 'id');
+ERROR: "s0.ss0" is not a table nor an index
+-- No.11-1-11
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.sc0', 'id');
+ERROR: "s0.sc0" is not a table nor an index
+-- No.11-1-12
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.sft0', 'id');
+ERROR: statistic for column "id" of "s0.sft0" does not exist
+-- No.11-1-13
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('pg_catalog.pg_class', 'id');
+ERROR: can not lock statistics of system catalog "pg_class"
+-- No.11-1-14
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.st0', 'dummy');
+ERROR: column "dummy" of "s0.st0" does not exist
+-- No.11-1-15
+DELETE FROM dbms_stats._relation_stats_locked;
+DELETE FROM pg_statistic
+ WHERE starelid = 's0.st0'::regclass;
+SELECT dbms_stats.lock('s0.st0', 'id');
+ERROR: statistic for column "id" of "s0.st0" does not exist
+VACUUM ANALYZE;
+-- No.11-1-16
+DELETE FROM dbms_stats._relation_stats_locked;
+INSERT INTO dbms_stats._relation_stats_locked(
+ relid, relname, relpages, reltuples,
+ relallvisible,
+ curpages)
+ VALUES('s0.st0'::regclass, 's0.st0', 1, 1640,
+ 1,
+ 1);
+SELECT dbms_stats.lock_column_stats('s0.st0','id');
+ lock_column_stats
+-------------------
+ s0.st0
+(1 row)
+
+UPDATE dbms_stats._column_stats_locked
+ SET (stanullfrac, stawidth, stadistinct,
+ stakind1, stakind2, stakind3, stakind4,
+ stakind5,
+ staop1, staop2, staop3, staop4,
+ staop5,
+ stanumbers1, stanumbers2, stanumbers3, stanumbers4,
+ stanumbers5,
+ stavalues1, stavalues2, stavalues3, stavalues4
+ ,stavalues5
+ ) = (
+ NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL)
+ WHERE starelid = 's0.st0'::regclass;
+SELECT dbms_stats.lock('s0.st0', 'id');
+ lock
+--------
+ s0.st0
+(1 row)
+
+SELECT * FROM relations_locked_v;
+ relid | relname | relpages | reltuples | relallvisible | curpages
+--------+---------+----------+-----------+---------------+----------
+ s0.st0 | s0.st0 | 1 | 1640 | 1 | 1
+(1 row)
+
+SELECT * FROM columns_locked_v c;
+ starelid | staattnum | attname | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+----------+-----------+---------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+-------------+------------+------------+------------+------------
+ s0.st0 | 1 | id | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2} | (null) | (null) | (null) | (null)
+ s0.st0 | 1 | id | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null) | (null)
+(2 rows)
+
+-- No.11-1-17
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.st0', 'id');
+ lock
+--------
+ s0.st0
+(1 row)
+
+SELECT * FROM relations_locked_v
+ WHERE relid = 's0.st0'::regclass;
+ relid | relname | relpages | reltuples | relallvisible | curpages
+--------+---------+----------+-----------+---------------+----------
+ s0.st0 | s0.st0 | (null) | (null) | (null) | (null)
+(1 row)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ s0.st0 | id | f
+ s0.st0 | id | t
+(2 rows)
+
+/*
+ * No.11-2 dbms_stats.lock(relid)
+ */
+-- No.11-2-1
+DELETE FROM dbms_stats._relation_stats_locked;
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+----------+---------------
+ (null) | ExclusiveLock
+(1 row)
+
+SELECT dbms_stats.lock('s0.st0');
+ lock
+--------
+ s0.st0
+(1 row)
+
+SELECT * FROM relations_locked_v;
+ relid | relname | relpages | reltuples | relallvisible | curpages
+--------+---------+----------+-----------+---------------+----------
+ s0.st0 | s0.st0 | 1 | 2 | 1 | 1
+(1 row)
+
+SELECT * FROM columns_locked_v c;
+ starelid | staattnum | attname | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+----------+-----------+---------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------------+------------+------------+------------+------------
+ s0.st0 | 1 | id | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2} | (null) | (null) | (null) | (null)
+ s0.st0 | 1 | id | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null) | (null)
+ s0.st0 | 2 | num | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {10,20} | (null) | (null) | (null) | (null)
+ s0.st0 | 2 | num | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {10,20,40,50,60} | (null) | (null) | (null) | (null)
+(4 rows)
+
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+----------------------------------------+--------------------------
+ dbms_stats._column_stats_locked | RowExclusiveLock
+ dbms_stats._column_stats_locked | ShareUpdateExclusiveLock
+ dbms_stats._column_stats_locked_pkey | RowExclusiveLock
+ dbms_stats._relation_stats_locked | RowExclusiveLock
+ dbms_stats._relation_stats_locked | ShareUpdateExclusiveLock
+ dbms_stats._relation_stats_locked_pkey | RowExclusiveLock
+ (null) | ExclusiveLock
+ (null) | ExclusiveLock
+(8 rows)
+
+COMMIT;
+-- No.11-2-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock(NULL);
+ERROR: relation is required
+-- No.11-2-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('0');
+ERROR: relation "-" does not exist
+-- No.11-2-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.st0');
+ lock
+--------
+ s0.st0
+(1 row)
+
+SELECT * FROM relations_locked_v;
+ relid | relname | relpages | reltuples | relallvisible | curpages
+--------+---------+----------+-----------+---------------+----------
+ s0.st0 | s0.st0 | 1 | 2 | 1 | 1
+(1 row)
+
+SELECT * FROM columns_locked_v c;
+ starelid | staattnum | attname | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+----------+-----------+---------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------------+------------+------------+------------+------------
+ s0.st0 | 1 | id | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2} | (null) | (null) | (null) | (null)
+ s0.st0 | 1 | id | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null) | (null)
+ s0.st0 | 2 | num | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {10,20} | (null) | (null) | (null) | (null)
+ s0.st0 | 2 | num | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {10,20,40,50,60} | (null) | (null) | (null) | (null)
+(4 rows)
+
+-- No.11-2-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('pg_toast.pg_toast_2618');
+ERROR: can not lock statistics of "pg_toast.pg_toast_2618" with relkind "t"
+HINT: only tables and indexes are supported
+-- No.11-2-6
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.st0_idx');
+ lock
+------------
+ s0.st0_idx
+(1 row)
+
+SELECT * FROM relations_locked_v;
+ relid | relname | relpages | reltuples | relallvisible | curpages
+------------+------------+----------+-----------+---------------+----------
+ s0.st0_idx | s0.st0_idx | 2 | 2 | 0 | 2
+(1 row)
+
+SELECT * FROM columns_locked_v c;
+ starelid | staattnum | attname | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+----------+-----------+---------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------+------------+------------+------------+------------
+(0 rows)
+
+-- No.11-2-7
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.ss0');
+ERROR: can not lock statistics of "s0.ss0" with relkind "S"
+HINT: only tables and indexes are supported
+-- No.11-2-8
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.sc0');
+ERROR: can not lock statistics of "s0.sc0" with relkind "c"
+HINT: only tables and indexes are supported
+-- No.11-2-9
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.sft0');
+ lock
+---------
+ s0.sft0
+(1 row)
+
+-- No.11-2-10
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('pg_catalog.pg_class');
+ERROR: can not lock statistics of system catalog "pg_class"
+-- No.11-2-11
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_table_stats('s0.st0');
+ lock_table_stats
+------------------
+ s0.st0
+(1 row)
+
+UPDATE dbms_stats._relation_stats_locked
+ SET (relpages, reltuples,
+ relallvisible,
+ curpages)
+ = (NULL, NULL, NULL
+ ,NULL
+ )
+ WHERE relid = 's0.st0'::regclass;
+SELECT dbms_stats.lock('s0.st0');
+ lock
+--------
+ s0.st0
+(1 row)
+
+SELECT * FROM relations_locked_v;
+ relid | relname | relpages | reltuples | relallvisible | curpages
+--------+---------+----------+-----------+---------------+----------
+ s0.st0 | s0.st0 | 1 | 2 | 1 | 1
+(1 row)
+
+SELECT * FROM columns_locked_v c;
+ starelid | staattnum | attname | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+----------+-----------+---------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------------+------------+------------+------------+------------
+ s0.st0 | 1 | id | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2} | (null) | (null) | (null) | (null)
+ s0.st0 | 1 | id | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null) | (null)
+ s0.st0 | 2 | num | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {10,20} | (null) | (null) | (null) | (null)
+ s0.st0 | 2 | num | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {10,20,40,50,60} | (null) | (null) | (null) | (null)
+(4 rows)
+
+-- No.11-2-12
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.st0');
+ lock
+--------
+ s0.st0
+(1 row)
+
+SELECT * FROM relations_locked_v;
+ relid | relname | relpages | reltuples | relallvisible | curpages
+--------+---------+----------+-----------+---------------+----------
+ s0.st0 | s0.st0 | 1 | 2 | 1 | 1
+(1 row)
+
+SELECT * FROM columns_locked_v c;
+ starelid | staattnum | attname | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+----------+-----------+---------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------------+------------+------------+------------+------------
+ s0.st0 | 1 | id | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2} | (null) | (null) | (null) | (null)
+ s0.st0 | 1 | id | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null) | (null)
+ s0.st0 | 2 | num | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {10,20} | (null) | (null) | (null) | (null)
+ s0.st0 | 2 | num | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {10,20,40,50,60} | (null) | (null) | (null) | (null)
+(4 rows)
+
+/*
+ * Stab function dbms_stats.lock
+ */
+ALTER FUNCTION dbms_stats.lock(relid regclass)
+ RENAME TO truth_lock;
+CREATE FUNCTION dbms_stats.lock(relid regclass)
+RETURNS regclass AS
+$$
+BEGIN
+ RAISE NOTICE 'arguments are %', $1;
+ RETURN $1;
+END
+$$
+LANGUAGE plpgsql;
+ALTER FUNCTION dbms_stats.lock(relid regclass, attname text)
+ RENAME TO truth_lock;
+CREATE FUNCTION dbms_stats.lock(
+ relid regclass,
+ attname text)
+RETURNS regclass AS
+$$
+BEGIN
+ RAISE NOTICE 'arguments are %, %', $1, $2;
+ RETURN $1;
+END
+$$
+LANGUAGE plpgsql;
+/*
+ * No.12-1 dbms_stats.lock_database_stats
+ */
+-- No.12-1-1
+SELECT dbms_stats.lock_database_stats();
+NOTICE: arguments are pt0
+CONTEXT: SQL function "lock_database_stats" statement 1
+NOTICE: arguments are pt0_idx
+CONTEXT: SQL function "lock_database_stats" statement 1
+NOTICE: arguments are st0
+CONTEXT: SQL function "lock_database_stats" statement 1
+NOTICE: arguments are st0_idx
+CONTEXT: SQL function "lock_database_stats" statement 1
+NOTICE: arguments are st1
+CONTEXT: SQL function "lock_database_stats" statement 1
+NOTICE: arguments are s0.st0
+CONTEXT: SQL function "lock_database_stats" statement 1
+NOTICE: arguments are s0.st0_idx
+CONTEXT: SQL function "lock_database_stats" statement 1
+NOTICE: arguments are s0.st1
+CONTEXT: SQL function "lock_database_stats" statement 1
+NOTICE: arguments are s0.st1_idx
+CONTEXT: SQL function "lock_database_stats" statement 1
+NOTICE: arguments are s0.st2
+CONTEXT: SQL function "lock_database_stats" statement 1
+NOTICE: arguments are s0.st2_idx
+CONTEXT: SQL function "lock_database_stats" statement 1
+NOTICE: arguments are s0.sft0
+CONTEXT: SQL function "lock_database_stats" statement 1
+NOTICE: arguments are st1_idx
+CONTEXT: SQL function "lock_database_stats" statement 1
+NOTICE: arguments are st1_exp
+CONTEXT: SQL function "lock_database_stats" statement 1
+NOTICE: arguments are s1.st0
+CONTEXT: SQL function "lock_database_stats" statement 1
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+/*
+ * No.12-2 dbms_stats.lock_schema_stats
+ */
+-- No.12-2-1
+SELECT dbms_stats.lock_schema_stats('s0');
+NOTICE: arguments are s0.st0
+CONTEXT: PL/pgSQL function dbms_stats.lock_schema_stats(text) line 10 at RETURN QUERY
+NOTICE: arguments are s0.st0_idx
+CONTEXT: PL/pgSQL function dbms_stats.lock_schema_stats(text) line 10 at RETURN QUERY
+NOTICE: arguments are s0.st1
+CONTEXT: PL/pgSQL function dbms_stats.lock_schema_stats(text) line 10 at RETURN QUERY
+NOTICE: arguments are s0.st1_idx
+CONTEXT: PL/pgSQL function dbms_stats.lock_schema_stats(text) line 10 at RETURN QUERY
+NOTICE: arguments are s0.st2
+CONTEXT: PL/pgSQL function dbms_stats.lock_schema_stats(text) line 10 at RETURN QUERY
+NOTICE: arguments are s0.st2_idx
+CONTEXT: PL/pgSQL function dbms_stats.lock_schema_stats(text) line 10 at RETURN QUERY
+NOTICE: arguments are s0.sft0
+CONTEXT: PL/pgSQL function dbms_stats.lock_schema_stats(text) line 10 at RETURN QUERY
+ lock_schema_stats
+-------------------
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+(7 rows)
+
+-- No.12-2-2
+SELECT dbms_stats.lock_schema_stats('s00');
+ERROR: schema "s00" does not exist
+-- No.12-2-3
+SELECT dbms_stats.lock_schema_stats('pg_catalog');
+ERROR: can not lock statistics of relation in system schema "pg_catalog"
+/*
+ * No.12-3 dbms_stats.lock_table_stats(regclass)
+ */
+-- No.12-3-1
+SELECT dbms_stats.lock_table_stats('s0.st0');
+NOTICE: arguments are s0.st0
+CONTEXT: SQL function "lock_table_stats" statement 1
+ lock_table_stats
+------------------
+ s0.st0
+(1 row)
+
+-- No.12-3-2
+SELECT dbms_stats.lock_table_stats('st0');
+NOTICE: arguments are st0
+CONTEXT: SQL function "lock_table_stats" statement 1
+ lock_table_stats
+------------------
+ st0
+(1 row)
+
+-- No.12-3-3
+SELECT dbms_stats.lock_table_stats('s00.s0');
+ERROR: schema "s00" does not exist
+LINE 1: SELECT dbms_stats.lock_table_stats('s00.s0');
+ ^
+/*
+ * No.12-4 dbms_stats.lock_table_stats(schemaname, tablename)
+ */
+-- No.12-4-1
+SELECT dbms_stats.lock_table_stats('s0', 'st0');
+NOTICE: arguments are s0.st0
+CONTEXT: SQL function "lock_table_stats" statement 1
+ lock_table_stats
+------------------
+ s0.st0
+(1 row)
+
+/*
+ * No.12-5 dbms_stats.lock_column_stats(regclass, attname)
+ */
+-- No.12-5-1
+SELECT dbms_stats.lock_column_stats('s0.st0', 'id');
+NOTICE: arguments are s0.st0, id
+CONTEXT: SQL function "lock_column_stats" statement 1
+ lock_column_stats
+-------------------
+ s0.st0
+(1 row)
+
+-- No.12-5-2
+SELECT dbms_stats.lock_column_stats('st0', 'id');
+NOTICE: arguments are st0, id
+CONTEXT: SQL function "lock_column_stats" statement 1
+ lock_column_stats
+-------------------
+ st0
+(1 row)
+
+-- No.12-5-3
+SELECT dbms_stats.lock_column_stats('s00.s0', 'id');
+ERROR: schema "s00" does not exist
+LINE 1: SELECT dbms_stats.lock_column_stats('s00.s0', 'id');
+ ^
+/*
+ * No.12-6 dbms_stats.lock_column_stats(schemaname, tablename, int2)
+ */
+-- No.12-6-1
+SELECT dbms_stats.lock_column_stats('s0', 'st0', 'id');
+NOTICE: arguments are s0.st0, id
+CONTEXT: SQL function "lock_column_stats" statement 1
+ lock_column_stats
+-------------------
+ s0.st0
+(1 row)
+
+/*
+ * Delete Stab function lock
+ */
+DROP FUNCTION dbms_stats.lock(relid regclass);
+ALTER FUNCTION dbms_stats.truth_lock(relid regclass)
+ RENAME TO lock;
+DROP FUNCTION dbms_stats.lock(relid regclass, attname text);
+ALTER FUNCTION dbms_stats.truth_lock(relid regclass, attname text)
+ RENAME TO lock;
+/*
+ * No.13-1 dbms_stats.unlock
+ */
+-- No.13-1-1
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+ id | time | unit | comment
+----+-------------------------------------+------+---------
+ 1 | Wed Feb 29 23:59:56.999999 2012 PST | d | (null)
+ 2 | Wed Feb 29 23:59:57 2012 PST | d | (null)
+ 3 | Wed Feb 29 23:59:57.000001 2012 PST | t | (null)
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(8 rows)
+
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 25
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+ count
+-------
+ 35
+(1 row)
+
+SELECT dbms_stats.unlock();
+ unlock
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+ id | time | unit | comment
+----+-------------------------------------+------+---------
+ 1 | Wed Feb 29 23:59:56.999999 2012 PST | d | (null)
+ 2 | Wed Feb 29 23:59:57 2012 PST | d | (null)
+ 3 | Wed Feb 29 23:59:57.000001 2012 PST | t | (null)
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(8 rows)
+
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 25
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+ count
+-------
+ 35
+(1 row)
+
+-- No.13-1-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT dbms_stats.unlock();
+ unlock
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+-- No.13-1-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+DELETE FROM dbms_stats._column_stats_locked;
+SELECT dbms_stats.unlock();
+ unlock
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+-- No.13-1-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.unlock();
+ unlock
+--------
+(0 rows)
+
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+-- No.13-1-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+SELECT dbms_stats.unlock('s0.st0');
+ unlock
+--------
+ s0.st0
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(6 rows)
+
+-- No.13-1-6
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+SELECT dbms_stats.unlock('st0');
+ unlock
+--------
+ st0
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(6 rows)
+
+-- No.13-1-7
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+ count
+-------
+ 15
+(1 row)
+
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+ count
+-------
+ 15
+(1 row)
+
+SELECT dbms_stats.unlock('s00.s0');
+ERROR: schema "s00" does not exist
+LINE 1: SELECT dbms_stats.unlock('s00.s0');
+ ^
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+ count
+-------
+ 15
+(1 row)
+
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+ count
+-------
+ 15
+(1 row)
+
+-- No.13-1-8
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT dbms_stats.unlock('s0.st0', 'id');
+ unlock
+--------
+ s0.st0
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(13 rows)
+
+-- No.13-1-9
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT dbms_stats.unlock('s0.st0', 'dummy');
+ERROR: column "dummy" of "s0.st0" does not exist
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+-- No.13-1-10
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+DELETE FROM dbms_stats._column_stats_locked;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT dbms_stats.unlock('s0.st0', 'id');
+ unlock
+--------
+ s0.st0
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid::regclass, staattnum FROM dbms_stats._column_stats_locked
+ GROUP BY starelid, staattnum
+ ORDER BY starelid;
+ starelid | staattnum
+----------+-----------
+(0 rows)
+
+-- No.13-1-11
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid::regclass, staattnum FROM dbms_stats._column_stats_locked
+ GROUP BY starelid, staattnum
+ ORDER BY starelid;
+ starelid | staattnum
+----------+-----------
+ st0 | 1
+ st0 | 2
+ st1 | 1
+ st1 | 2
+ s0.st0 | 1
+ s0.st0 | 2
+ s0.st1 | 1
+ s0.st1 | 2
+ s0.st2 | 1
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 1
+ s1.st0 | 2
+(13 rows)
+
+SELECT dbms_stats.unlock(NULL, 'id');
+ERROR: relation is required
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid::regclass, staattnum FROM dbms_stats._column_stats_locked
+ GROUP BY starelid, staattnum
+ ORDER BY starelid;
+ starelid | staattnum
+----------+-----------
+ st0 | 1
+ st0 | 2
+ st1 | 1
+ st1 | 2
+ s0.st0 | 1
+ s0.st0 | 2
+ s0.st1 | 1
+ s0.st1 | 2
+ s0.st2 | 1
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 1
+ s1.st0 | 2
+(13 rows)
+
+-- No.13-1-12
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid::regclass, staattnum FROM dbms_stats._column_stats_locked
+ GROUP BY starelid, staattnum
+ ORDER BY starelid;
+ starelid | staattnum
+----------+-----------
+ st0 | 1
+ st0 | 2
+ st1 | 1
+ st1 | 2
+ s0.st0 | 1
+ s0.st0 | 2
+ s0.st1 | 1
+ s0.st1 | 2
+ s0.st2 | 1
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 1
+ s1.st0 | 2
+(13 rows)
+
+SELECT dbms_stats.unlock('s0.st0', NULL);
+ unlock
+--------
+ s0.st0
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, staattnum FROM dbms_stats._column_stats_locked
+ GROUP BY starelid, staattnum
+ ORDER BY starelid;
+ starelid | staattnum
+----------+-----------
+ st0 | 1
+ st0 | 2
+ st1 | 1
+ st1 | 2
+ s0.st1 | 1
+ s0.st1 | 2
+ s0.st2 | 1
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 1
+ s1.st0 | 2
+(11 rows)
+
+-- No.13-1-13
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+ count
+-------
+ 15
+(1 row)
+
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+ count
+-------
+ 15
+(1 row)
+
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+----------+---------------
+ (null) | ExclusiveLock
+(1 row)
+
+SELECT dbms_stats.unlock();
+ unlock
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+--------------------------------------+--------------------------
+ dbms_stats._column_stats_locked | RowExclusiveLock
+ dbms_stats._column_stats_locked | ShareUpdateExclusiveLock
+ dbms_stats._column_stats_locked_pkey | RowExclusiveLock
+ dbms_stats._relation_stats_locked | RowExclusiveLock
+ dbms_stats._relation_stats_locked | ShareUpdateExclusiveLock
+ (null) | ExclusiveLock
+ (null) | ExclusiveLock
+(7 rows)
+
+COMMIT;
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+/*
+ * No.14-1 dbms_stats.unlock_database_stats
+ */
+-- No.14-1-1
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+ id | time | unit | comment
+----+-------------------------------------+------+---------
+ 1 | Wed Feb 29 23:59:56.999999 2012 PST | d | (null)
+ 2 | Wed Feb 29 23:59:57 2012 PST | d | (null)
+ 3 | Wed Feb 29 23:59:57.000001 2012 PST | t | (null)
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(8 rows)
+
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 25
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+ count
+-------
+ 35
+(1 row)
+
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+ count
+-------
+ 15
+(1 row)
+
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+ count
+-------
+ 15
+(1 row)
+
+SELECT dbms_stats.unlock_database_stats();
+ unlock_database_stats
+-----------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+ id | time | unit | comment
+----+-------------------------------------+------+---------
+ 1 | Wed Feb 29 23:59:56.999999 2012 PST | d | (null)
+ 2 | Wed Feb 29 23:59:57 2012 PST | d | (null)
+ 3 | Wed Feb 29 23:59:57.000001 2012 PST | t | (null)
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(8 rows)
+
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 25
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+ count
+-------
+ 35
+(1 row)
+
+-- No.14-1-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+DELETE FROM dbms_stats._column_stats_locked;
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+ count
+-------
+ 15
+(1 row)
+
+SELECT dbms_stats.unlock_database_stats();
+ unlock_database_stats
+-----------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+-- No.14-1-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.unlock_database_stats();
+ unlock_database_stats
+-----------------------
+(0 rows)
+
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+-- No.14-1-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+ count
+-------
+ 15
+(1 row)
+
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+ count
+-------
+ 15
+(1 row)
+
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+----------+---------------
+ (null) | ExclusiveLock
+(1 row)
+
+SELECT dbms_stats.unlock_database_stats();
+ unlock_database_stats
+-----------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+-----------------------------------+--------------------------
+ dbms_stats._column_stats_locked | RowExclusiveLock
+ dbms_stats._column_stats_locked | ShareUpdateExclusiveLock
+ dbms_stats._relation_stats_locked | RowExclusiveLock
+ dbms_stats._relation_stats_locked | ShareUpdateExclusiveLock
+ (null) | ExclusiveLock
+ (null) | ExclusiveLock
+(6 rows)
+
+COMMIT;
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+/*
+ * No.14-2 dbms_stats.unlock_schema_stats
+ */
+-- No.14-2-1
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+ id | time | unit | comment
+----+-------------------------------------+------+---------
+ 1 | Wed Feb 29 23:59:56.999999 2012 PST | d | (null)
+ 2 | Wed Feb 29 23:59:57 2012 PST | d | (null)
+ 3 | Wed Feb 29 23:59:57.000001 2012 PST | t | (null)
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(8 rows)
+
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 25
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+ count
+-------
+ 35
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+SELECT dbms_stats.unlock_schema_stats('s0');
+ unlock_schema_stats
+---------------------
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+(7 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+---------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ st1_idx
+ st1_exp
+ s1.st0
+(8 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(4 rows)
+
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+ id | time | unit | comment
+----+-------------------------------------+------+---------
+ 1 | Wed Feb 29 23:59:56.999999 2012 PST | d | (null)
+ 2 | Wed Feb 29 23:59:57 2012 PST | d | (null)
+ 3 | Wed Feb 29 23:59:57.000001 2012 PST | t | (null)
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(8 rows)
+
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 25
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+ count
+-------
+ 35
+(1 row)
+
+-- No.14-2-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+DELETE FROM dbms_stats._column_stats_locked;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+(0 rows)
+
+SELECT dbms_stats.unlock_schema_stats('s0');
+ unlock_schema_stats
+---------------------
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+(7 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+---------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ st1_idx
+ st1_exp
+ s1.st0
+(8 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+(0 rows)
+
+-- No.14-2-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+-------
+(0 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+(0 rows)
+
+SELECT dbms_stats.unlock_schema_stats('s0');
+ unlock_schema_stats
+---------------------
+(0 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+-------
+(0 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+(0 rows)
+
+-- No.14-2-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+SELECT dbms_stats.unlock_schema_stats('s0');
+ unlock_schema_stats
+---------------------
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+(7 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+---------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ st1_idx
+ st1_exp
+ s1.st0
+(8 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(4 rows)
+
+-- No.14-2-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+SELECT dbms_stats.unlock_schema_stats('s00');
+ERROR: schema "s00" does not exist
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+-- No.14-2-6
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+SELECT dbms_stats.unlock_schema_stats('pg_catalog');
+ERROR: can not unlock statistics of relation in system schema "pg_catalog"
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+-- No.14-2-7
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+SELECT dbms_stats.unlock_schema_stats(NULL);
+ unlock_schema_stats
+---------------------
+(0 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+-- No.14-2-8
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+----------+---------------
+ (null) | ExclusiveLock
+(1 row)
+
+SELECT dbms_stats.unlock_schema_stats('s0');
+ unlock_schema_stats
+---------------------
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+(7 rows)
+
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+-----------------------------------+--------------------------
+ dbms_stats._column_stats_locked | RowExclusiveLock
+ dbms_stats._column_stats_locked | ShareUpdateExclusiveLock
+ dbms_stats._relation_stats_locked | RowExclusiveLock
+ dbms_stats._relation_stats_locked | ShareUpdateExclusiveLock
+ (null) | ExclusiveLock
+ (null) | ExclusiveLock
+(6 rows)
+
+COMMIT;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+---------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ st1_idx
+ st1_exp
+ s1.st0
+(8 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(4 rows)
+
+/*
+ * No.14-3 dbms_stats.unlock_table_stats(regclass)
+ */
+-- No.14-3-1
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+ id | time | unit | comment
+----+-------------------------------------+------+---------
+ 1 | Wed Feb 29 23:59:56.999999 2012 PST | d | (null)
+ 2 | Wed Feb 29 23:59:57 2012 PST | d | (null)
+ 3 | Wed Feb 29 23:59:57.000001 2012 PST | t | (null)
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(8 rows)
+
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 25
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+ count
+-------
+ 35
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+SELECT dbms_stats.unlock_table_stats('s0.st0');
+ unlock_table_stats
+--------------------
+ s0.st0
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(6 rows)
+
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+ id | time | unit | comment
+----+-------------------------------------+------+---------
+ 1 | Wed Feb 29 23:59:56.999999 2012 PST | d | (null)
+ 2 | Wed Feb 29 23:59:57 2012 PST | d | (null)
+ 3 | Wed Feb 29 23:59:57.000001 2012 PST | t | (null)
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(8 rows)
+
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 25
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+ count
+-------
+ 35
+(1 row)
+
+-- No.14-3-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+DELETE FROM dbms_stats._column_stats_locked;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+(0 rows)
+
+SELECT dbms_stats.unlock_table_stats('s0.st0');
+ unlock_table_stats
+--------------------
+ s0.st0
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+(0 rows)
+
+-- No.14-3-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+-------
+(0 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+(0 rows)
+
+SELECT dbms_stats.unlock_table_stats('s0.st0');
+ unlock_table_stats
+--------------------
+(0 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+-------
+(0 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+(0 rows)
+
+-- No.14-3-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+SELECT dbms_stats.unlock_table_stats('s0.st0');
+ unlock_table_stats
+--------------------
+ s0.st0
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(6 rows)
+
+-- No.14-3-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+SELECT dbms_stats.unlock_table_stats('st0');
+ unlock_table_stats
+--------------------
+ st0
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(6 rows)
+
+-- No.14-3-6
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+SELECT dbms_stats.unlock_table_stats('s00.s0');
+ERROR: schema "s00" does not exist
+LINE 1: SELECT dbms_stats.unlock_table_stats('s00.s0');
+ ^
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+-- No.14-3-7
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+SELECT dbms_stats.unlock_table_stats(NULL);
+ unlock_table_stats
+--------------------
+(0 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+-- No.14-3-8
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+----------+---------------
+ (null) | ExclusiveLock
+(1 row)
+
+SELECT dbms_stats.unlock_table_stats('s0.st0');
+ unlock_table_stats
+--------------------
+ s0.st0
+(1 row)
+
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+----------------------------------------+--------------------------
+ dbms_stats._column_stats_locked | RowExclusiveLock
+ dbms_stats._column_stats_locked | ShareUpdateExclusiveLock
+ dbms_stats._relation_stats_locked | RowExclusiveLock
+ dbms_stats._relation_stats_locked | ShareUpdateExclusiveLock
+ dbms_stats._relation_stats_locked_pkey | RowExclusiveLock
+ (null) | ExclusiveLock
+ (null) | ExclusiveLock
+(7 rows)
+
+COMMIT;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(6 rows)
+
+/*
+ * No.14-4 dbms_stats.unlock_table_stats(schemaname, tablename)
+ */
+-- No.14-4-1
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+ id | time | unit | comment
+----+-------------------------------------+------+---------
+ 1 | Wed Feb 29 23:59:56.999999 2012 PST | d | (null)
+ 2 | Wed Feb 29 23:59:57 2012 PST | d | (null)
+ 3 | Wed Feb 29 23:59:57.000001 2012 PST | t | (null)
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(8 rows)
+
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 25
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+ count
+-------
+ 35
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+SELECT dbms_stats.unlock_table_stats('s0','st0');
+ unlock_table_stats
+--------------------
+ s0.st0
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(6 rows)
+
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+ id | time | unit | comment
+----+-------------------------------------+------+---------
+ 1 | Wed Feb 29 23:59:56.999999 2012 PST | d | (null)
+ 2 | Wed Feb 29 23:59:57 2012 PST | d | (null)
+ 3 | Wed Feb 29 23:59:57.000001 2012 PST | t | (null)
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(8 rows)
+
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 25
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+ count
+-------
+ 35
+(1 row)
+
+-- No.14-4-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+DELETE FROM dbms_stats._column_stats_locked;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+(0 rows)
+
+SELECT dbms_stats.unlock_table_stats('s0', 'st0');
+ unlock_table_stats
+--------------------
+ s0.st0
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+(0 rows)
+
+-- No.14-4-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+-------
+(0 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+(0 rows)
+
+SELECT dbms_stats.unlock_table_stats('s0', 'st0');
+ unlock_table_stats
+--------------------
+(0 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+-------
+(0 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+(0 rows)
+
+-- No.14-4-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+SELECT dbms_stats.unlock_table_stats('s0', 'st0');
+ unlock_table_stats
+--------------------
+ s0.st0
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(6 rows)
+
+-- No.14-4-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+SELECT dbms_stats.unlock_table_stats('s00', 's0');
+ERROR: schema "s00" does not exist
+CONTEXT: SQL function "unlock_table_stats" statement 3
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+-- No.14-4-6
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+SELECT dbms_stats.unlock_table_stats(NULL, 'st0');
+ unlock_table_stats
+--------------------
+(0 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+-- No.14-4-7
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+SELECT dbms_stats.unlock_table_stats('s0', NULL);
+ unlock_table_stats
+--------------------
+(0 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+-- No.14-4-8
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st0 | 4
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(7 rows)
+
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+----------+---------------
+ (null) | ExclusiveLock
+(1 row)
+
+SELECT dbms_stats.unlock_table_stats('s0', 'st0');
+ unlock_table_stats
+--------------------
+ s0.st0
+(1 row)
+
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+----------------------------------------+--------------------------
+ dbms_stats._column_stats_locked | RowExclusiveLock
+ dbms_stats._column_stats_locked | ShareUpdateExclusiveLock
+ dbms_stats._relation_stats_locked | RowExclusiveLock
+ dbms_stats._relation_stats_locked | ShareUpdateExclusiveLock
+ dbms_stats._relation_stats_locked_pkey | RowExclusiveLock
+ (null) | ExclusiveLock
+ (null) | ExclusiveLock
+(7 rows)
+
+COMMIT;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(14 rows)
+
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+ starelid | count
+----------+-------
+ st0 | 2
+ st1 | 2
+ s0.st1 | 2
+ s0.st2 | 2
+ st1_exp | 1
+ s1.st0 | 2
+(6 rows)
+
+/*
+ * No.14-5 dbms_stats.unlock_column_stats(regclass, attname)
+ */
+-- No.14-5-1
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+ id | time | unit | comment
+----+-------------------------------------+------+---------
+ 1 | Wed Feb 29 23:59:56.999999 2012 PST | d | (null)
+ 2 | Wed Feb 29 23:59:57 2012 PST | d | (null)
+ 3 | Wed Feb 29 23:59:57.000001 2012 PST | t | (null)
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(8 rows)
+
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 25
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+ count
+-------
+ 35
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT dbms_stats.unlock_column_stats('s0.st0', 'id');
+ unlock_column_stats
+---------------------
+ s0.st0
+(1 row)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(13 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+ id | time | unit | comment
+----+-------------------------------------+------+---------
+ 1 | Wed Feb 29 23:59:56.999999 2012 PST | d | (null)
+ 2 | Wed Feb 29 23:59:57 2012 PST | d | (null)
+ 3 | Wed Feb 29 23:59:57.000001 2012 PST | t | (null)
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(8 rows)
+
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 25
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+ count
+-------
+ 35
+(1 row)
+
+-- No.14-5-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+DELETE FROM dbms_stats._column_stats_locked;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT dbms_stats.unlock_column_stats('s0.st0', 'id');
+ unlock_column_stats
+---------------------
+ s0.st0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+ count
+-------
+ 0
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+-- No.14-5-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT dbms_stats.unlock_column_stats('s0.st0', 'id');
+ unlock_column_stats
+---------------------
+ s0.st0
+(1 row)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(13 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+-- No.14-5-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT dbms_stats.unlock_column_stats('st0', 'id');
+ unlock_column_stats
+---------------------
+ st0
+(1 row)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(14 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+-- No.14-5-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT dbms_stats.unlock_column_stats('s0.st0', 'dummy');
+ERROR: column "dummy" of "s0.st0" does not exist
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+-- No.14-5-6
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT dbms_stats.unlock_column_stats('s00.s0', 'id');
+ERROR: schema "s00" does not exist
+LINE 1: SELECT dbms_stats.unlock_column_stats('s00.s0', 'id');
+ ^
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+-- No.14-5-7
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT dbms_stats.unlock_column_stats(NULL, 'id');
+ unlock_column_stats
+---------------------
+(0 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+-- No.14-5-8
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT dbms_stats.unlock_column_stats('s0.st0', NULL);
+ unlock_column_stats
+---------------------
+(0 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+-- No.14-5-9
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+----------+---------------
+ (null) | ExclusiveLock
+(1 row)
+
+SELECT dbms_stats.unlock_column_stats('s0.st0', 'id');
+ unlock_column_stats
+---------------------
+ s0.st0
+(1 row)
+
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+--------------------------------------+--------------------------
+ dbms_stats._column_stats_locked | RowExclusiveLock
+ dbms_stats._column_stats_locked | ShareUpdateExclusiveLock
+ dbms_stats._column_stats_locked_pkey | RowExclusiveLock
+ dbms_stats._relation_stats_locked | ShareUpdateExclusiveLock
+ (null) | ExclusiveLock
+ (null) | ExclusiveLock
+(6 rows)
+
+COMMIT;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(13 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+/*
+ * No.14-6 dbms_stats.unlock_column_stats(schemaname, tablename, attname)
+ */
+-- No.14-6-1
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+ id | time | unit | comment
+----+-------------------------------------+------+---------
+ 1 | Wed Feb 29 23:59:56.999999 2012 PST | d | (null)
+ 2 | Wed Feb 29 23:59:57 2012 PST | d | (null)
+ 3 | Wed Feb 29 23:59:57.000001 2012 PST | t | (null)
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(8 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT dbms_stats.unlock_column_stats('s0', 'st0', 'id');
+ unlock_column_stats
+---------------------
+ s0.st0
+(1 row)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(13 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+ id | time | unit | comment
+----+-------------------------------------+------+---------
+ 1 | Wed Feb 29 23:59:56.999999 2012 PST | d | (null)
+ 2 | Wed Feb 29 23:59:57 2012 PST | d | (null)
+ 3 | Wed Feb 29 23:59:57.000001 2012 PST | t | (null)
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(8 rows)
+
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 25
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+ count
+-------
+ 35
+(1 row)
+
+-- No.14-6-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+DELETE FROM dbms_stats._column_stats_locked;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT dbms_stats.unlock_column_stats('s0', 'st0', 'id');
+ unlock_column_stats
+---------------------
+ s0.st0
+(1 row)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+(0 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+-- No.14-6-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT dbms_stats.unlock_column_stats('s0', 'st0', 'id');
+ unlock_column_stats
+---------------------
+ s0.st0
+(1 row)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(13 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+-- No.14-6-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT dbms_stats.unlock_column_stats('s0', 'st0', 'dummy');
+ERROR: column "dummy" of "s0.st0" does not exist
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+-- No.14-6-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT dbms_stats.unlock_column_stats(NULL, 'st0', 'id');
+ unlock_column_stats
+---------------------
+(0 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+-- No.14-6-6
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT dbms_stats.unlock_column_stats('s0', NULL, 'id');
+ unlock_column_stats
+---------------------
+(0 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+-- No.14-6-7
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT dbms_stats.unlock_column_stats('s0', 'st0', NULL);
+ unlock_column_stats
+---------------------
+(0 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+-- No.14-6-8
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | id | f
+ s0.st0 | id | t
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(15 rows)
+
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+----------+---------------
+ (null) | ExclusiveLock
+(1 row)
+
+SELECT dbms_stats.unlock_column_stats('s0', 'st0', 'id');
+ unlock_column_stats
+---------------------
+ s0.st0
+(1 row)
+
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+--------------------------------------+--------------------------
+ dbms_stats._column_stats_locked | RowExclusiveLock
+ dbms_stats._column_stats_locked | ShareUpdateExclusiveLock
+ dbms_stats._column_stats_locked_pkey | RowExclusiveLock
+ dbms_stats._relation_stats_locked | ShareUpdateExclusiveLock
+ (null) | ExclusiveLock
+ (null) | ExclusiveLock
+(6 rows)
+
+COMMIT;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+ starelid | attname | stainherit
+----------+---------+------------
+ st0 | id | f
+ st0 | name | f
+ st1 | val | f
+ st1 | str | f
+ s0.st0 | num | f
+ s0.st0 | num | t
+ s0.st1 | id | f
+ s0.st1 | num | f
+ s0.st2 | id | f
+ s0.st2 | txt | f
+ st1_exp | lower | f
+ s1.st0 | id | f
+ s1.st0 | num | f
+(13 rows)
+
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+(15 rows)
+
--- /dev/null
+\pset null '(null)'
+LOAD 'pg_dbms_stats';
+/*
+ * No.2-3 dbms_stats.backup_history_id_seq
+ */
+-- No.2-3-1
+SELECT setval('dbms_stats.backup_history_id_seq', 0, false);
+ERROR: setval: value 0 is out of bounds for sequence "backup_history_id_seq" (1..9223372036854775807)
+-- No.2-3-2
+SELECT setval('dbms_stats.backup_history_id_seq', 1, false);
+ setval
+--------
+ 1
+(1 row)
+
+INSERT INTO dbms_stats.backup_history(time, unit)
+ VALUES ('2011-01-01', 't');
+SELECT id, time, unit FROM dbms_stats.backup_history
+ ORDER BY id;
+ id | time | unit
+----+------------------------------+------
+ 1 | Sat Jan 01 00:00:00 2011 PST | t
+(1 row)
+
+-- No.2-3-3
+INSERT INTO dbms_stats.backup_history(time, unit)
+ VALUES ('2011-01-02', 'c'), ('2011-01-03', 'd');
+SELECT id, time, unit FROM dbms_stats.backup_history
+ ORDER BY id;
+ id | time | unit
+----+------------------------------+------
+ 1 | Sat Jan 01 00:00:00 2011 PST | t
+ 2 | Sun Jan 02 00:00:00 2011 PST | c
+ 3 | Mon Jan 03 00:00:00 2011 PST | d
+(3 rows)
+
+-- clean up
+SELECT setval('dbms_stats.backup_history_id_seq', 1, false);
+ setval
+--------
+ 1
+(1 row)
+
+DELETE FROM dbms_stats.backup_history;
+/*
+ * No.3-1 dbms_stats.use_locked_stats
+ */
+DELETE FROM dbms_stats._relation_stats_locked;
+EXPLAIN (costs false) SELECT * FROM s0.st2 WHERE id < 1;
+ QUERY PLAN
+--------------------
+ Seq Scan on st2
+ Filter: (id < 1)
+(2 rows)
+
+SELECT dbms_stats.lock_table_stats('s0.st2'::regclass);
+ lock_table_stats
+------------------
+ s0.st2
+(1 row)
+
+UPDATE dbms_stats._relation_stats_locked SET curpages = 10000;
+-- No.3-1-1
+SET pg_dbms_stats.use_locked_stats TO on;
+EXPLAIN (costs false) SELECT * FROM s0.st2 WHERE id < 1;
+ QUERY PLAN
+---------------------------------
+ Index Scan using st2_idx on st2
+ Index Cond: (id < 1)
+(2 rows)
+
+-- No.3-1-2
+SET pg_dbms_stats.use_locked_stats TO off;
+EXPLAIN (costs false) SELECT * FROM s0.st2 WHERE id < 1;
+ QUERY PLAN
+--------------------
+ Seq Scan on st2
+ Filter: (id < 1)
+(2 rows)
+
+-- No.3-1-3
+\c - regular_user
+LOAD '$libdir/plugins/pg_dbms_stats';
+SHOW pg_dbms_stats.use_locked_stats;
+ pg_dbms_stats.use_locked_stats
+--------------------------------
+ on
+(1 row)
+
+SET pg_dbms_stats.use_locked_stats TO OFF;
+SHOW pg_dbms_stats.use_locked_stats;
+ pg_dbms_stats.use_locked_stats
+--------------------------------
+ off
+(1 row)
+
+EXPLAIN (costs false) SELECT * FROM s0.st2 WHERE id < 1;
+ QUERY PLAN
+--------------------
+ Seq Scan on st2
+ Filter: (id < 1)
+(2 rows)
+
+RESET pg_dbms_stats.use_locked_stats;
+EXPLAIN (costs false) SELECT * FROM s0.st2 WHERE id < 1;
+ QUERY PLAN
+---------------------------------
+ Index Scan using st2_idx on st2
+ Index Cond: (id < 1)
+(2 rows)
+
+-- clean up
+\c - postgres
+LOAD 'pg_dbms_stats';
+DELETE FROM dbms_stats._relation_stats_locked;
+/*
+ * No.4-1 DATA TYPE dbms_stats.anyarray
+ */
+CREATE TABLE st3(id integer, name char(1000), num_arr char(5)[]);
+INSERT INTO st3 SELECT i, i , ARRAY[i::char, 'a'] FROM generate_series(1,10) g(i);
+ANALYZE st3;
+SELECT stavalues1 FROM pg_statistic
+ WHERE starelid = 'public.st3'::regclass;
+ stavalues1
+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
+ {1,2,3,4,5,6,7,8,9,10}
+ {"1 ","10 ","2 ","3 ","4 ","5 ","6 ","7 ","8 ","9 "}
+ {"{\"1 \",\"a \"}"}
+(3 rows)
+
+\copy (SELECT stavalues1::dbms_stats.anyarray FROM dbms_stats.column_stats_effective WHERE starelid = 'st3'::regclass) TO 'results/anyarray_test.cp' binary
+CREATE TABLE st4 (arr dbms_stats.anyarray);
+SELECT t.typname, n.nspname,
+ t.typlen, t.typbyval, t.typtype,
+ t.typcategory, t.typispreferred, t.typispreferred,
+ t.typdelim, t.typrelid, t.typmodin,
+ t.typmodout, t.typanalyze, t.typalign,
+ t.typstorage, t.typnotnull, t.typbasetype, t.typtypmod,
+ t.typndims, t.typcollation, t.typdefaultbin, t.typdefault
+ FROM pg_type t, pg_namespace n
+ WHERE t.typname = 'anyarray'
+ AND t.typnamespace = n.oid
+ ORDER BY t.typname;
+ typname | nspname | typlen | typbyval | typtype | typcategory | typispreferred | typispreferred | typdelim | typrelid | typmodin | typmodout | typanalyze | typalign | typstorage | typnotnull | typbasetype | typtypmod | typndims | typcollation | typdefaultbin | typdefault
+----------+------------+--------+----------+---------+-------------+----------------+----------------+----------+----------+----------+-----------+------------+----------+------------+------------+-------------+-----------+----------+--------------+---------------+------------
+ anyarray | pg_catalog | -1 | f | p | P | f | f | , | 0 | - | - | - | d | x | f | 0 | -1 | 0 | 0 | (null) | (null)
+ anyarray | dbms_stats | -1 | f | b | P | f | f | , | 0 | - | - | - | d | x | f | 0 | -1 | 0 | 0 | (null) | (null)
+(2 rows)
+
+-- No.4-1-1
+INSERT INTO st4 VALUES(NULL);
+SELECT * FROM st4;
+ arr
+--------
+ (null)
+(1 row)
+
+-- No.4-1-2
+DELETE FROM st4;
+SELECT stavalues1::dbms_stats.anyarray
+ FROM dbms_stats.column_stats_effective
+ WHERE starelid = 'st3'::regclass
+ AND staattnum = 1;
+ stavalues1
+------------------------
+ {1,2,3,4,5,6,7,8,9,10}
+(1 row)
+
+SELECT count(*) FROM st4;
+ count
+-------
+ 0
+(1 row)
+
+INSERT INTO st4
+ SELECT stavalues1::dbms_stats.anyarray
+ FROM dbms_stats.column_stats_effective
+ WHERE starelid = 'st3'::regclass
+ AND staattnum = 1;
+SELECT * FROM st4;
+ arr
+------------------------
+ {1,2,3,4,5,6,7,8,9,10}
+(1 row)
+
+-- No.4-1-3
+DELETE FROM st4;
+SELECT stavalues1::dbms_stats.anyarray
+ FROM dbms_stats.column_stats_effective
+ WHERE starelid = 'st3'::regclass
+ AND staattnum = 2;
+ stavalues1
+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
+ {"1 ","10 ","2 ","3 ","4 ","5 ","6 ","7 ","8 ","9 "}
+(1 row)
+
+SELECT count(*) FROM st4;
+ count
+-------
+ 0
+(1 row)
+
+INSERT INTO st4
+ SELECT stavalues1::dbms_stats.anyarray
+ FROM dbms_stats.column_stats_effective
+ WHERE starelid = 'st3'::regclass
+ AND staattnum = 2;
+SELECT * FROM st4;
+ arr
+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
+ {"1 ","10 ","2 ","3 ","4 ","5 ","6 ","7 ","8 ","9 "}
+(1 row)
+
+-- No.4-1-4
+DELETE FROM st4;
+SELECT stavalues1::dbms_stats.anyarray
+ FROM dbms_stats.column_stats_effective
+ WHERE starelid = 'st3'::regclass
+ AND staattnum = 1;
+ stavalues1
+------------------------
+ {1,2,3,4,5,6,7,8,9,10}
+(1 row)
+
+SELECT count(*) FROM st4;
+ count
+-------
+ 0
+(1 row)
+
+INSERT INTO st4
+ SELECT stavalues1::dbms_stats.anyarray
+ FROM dbms_stats.column_stats_effective
+ WHERE starelid = 'st3'::regclass
+ AND staattnum = 1;
+SELECT * FROM st4;
+ arr
+------------------------
+ {1,2,3,4,5,6,7,8,9,10}
+(1 row)
+
+-- No.4-1-5
+DELETE FROM st4;
+SELECT stavalues1::dbms_stats.anyarray
+ FROM dbms_stats.column_stats_effective
+ WHERE starelid = 'st3'::regclass
+ AND staattnum = 3;
+ stavalues1
+---------------------------
+ {"{\"1 \",\"a \"}"}
+(1 row)
+
+SELECT count(*) FROM st4;
+ count
+-------
+ 0
+(1 row)
+
+INSERT INTO st4
+ SELECT stavalues1::dbms_stats.anyarray
+ FROM dbms_stats.column_stats_effective
+ WHERE starelid = 'st3'::regclass
+ AND staattnum = 3;
+SELECT * FROM st4;
+ arr
+---------------------------
+ {"{\"1 \",\"a \"}"}
+(1 row)
+
+-- No.4-1-6
+DELETE FROM st4;
+SELECT stavalues1::dbms_stats.anyarray
+ FROM dbms_stats.column_stats_effective
+ WHERE starelid = 'st3'::regclass;
+ stavalues1
+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
+ {1,2,3,4,5,6,7,8,9,10}
+ {"1 ","10 ","2 ","3 ","4 ","5 ","6 ","7 ","8 ","9 "}
+ {"{\"1 \",\"a \"}"}
+(3 rows)
+
+\copy st4(arr) FROM 'results/anyarray_test.cp' binary
+SELECT * FROM st4;
+ arr
+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
+ {1,2,3,4,5,6,7,8,9,10}
+ {"1 ","10 ","2 ","3 ","4 ","5 ","6 ","7 ","8 ","9 "}
+ {"{\"1 \",\"a \"}"}
+(3 rows)
+
+-- clean up
+DROP TABLE st3;
+DROP TABLE st4;
+SELECT dbms_stats.unlock_database_stats();
+ unlock_database_stats
+-----------------------
+(0 rows)
+
+SELECT dbms_stats.lock_table_stats('st1');
+ lock_table_stats
+------------------
+ st1
+(1 row)
+
+/*
+ * No.5-2 dbms_stats.invalidate_column_cache
+ */
+-- No.5-2-1
+SELECT dbms_stats.invalidate_column_cache();
+ERROR: pg_dbms_stats: invalid trigger call
+-- No.5-2-2
+/*
+ * Driver function dbms_stats.invalidate_cache1
+ */
+CREATE TRIGGER invalidate_cache1
+ AFTER INSERT OR DELETE OR UPDATE
+ ON pt0
+ FOR EACH ROW EXECUTE PROCEDURE dbms_stats.invalidate_column_cache();
+INSERT INTO pt0 VALUES (1,'2012/12/12');
+ERROR: pg_dbms_stats: invalid trigger call
+DROP TRIGGER invalidate_cache1 ON pt0;
+-- No.5-2-3
+/*
+ * Driver function dbms_stats.invalidate_cache2
+ */
+CREATE TRIGGER invalidate_cache2
+BEFORE INSERT OR DELETE OR UPDATE
+ ON pt0
+ FOR EACH STATEMENT EXECUTE PROCEDURE dbms_stats.invalidate_column_cache();
+INSERT INTO pt0 VALUES (1,'2012/12/12');
+ERROR: pg_dbms_stats: invalid trigger call
+DROP TRIGGER invalidate_cache2 ON pt0;
+-- No.5-2-4
+/*
+ * Driver function dbms_stats.invalidate_cache3
+ */
+CREATE TRIGGER invalidate_cache3
+BEFORE TRUNCATE
+ ON pt0
+ FOR EACH STATEMENT EXECUTE PROCEDURE dbms_stats.invalidate_column_cache();
+TRUNCATE TABLE pt0;
+ERROR: pg_dbms_stats: invalid trigger call
+DROP TRIGGER invalidate_cache3 ON pt0;
+-- No.5-2-5
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+ QUERY PLAN
+---------------------------------
+ Index Scan using st1_idx on st1
+ Index Cond: (val IS NULL)
+(2 rows)
+
+INSERT INTO dbms_stats._relation_stats_locked (relid, relname) VALUES (0, 'dummy');
+INSERT INTO dbms_stats._column_stats_locked (starelid, staattnum, stainherit)
+ VALUES (0, 1, true);
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+ QUERY PLAN
+---------------------------------
+ Index Scan using st1_idx on st1
+ Index Cond: (val IS NULL)
+(2 rows)
+
+-- No.5-2-6
+INSERT INTO dbms_stats._column_stats_locked (starelid, staattnum, stainherit)
+ VALUES ('st1_idx'::regclass, 1, true);
+ERROR: "st1_idx" is an index except an index expression
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+ QUERY PLAN
+---------------------------------
+ Index Scan using st1_idx on st1
+ Index Cond: (val IS NULL)
+(2 rows)
+
+-- No.5-2-7
+INSERT INTO dbms_stats._column_stats_locked (starelid, staattnum, stainherit)
+ VALUES ('complex'::regclass, 1, true);
+ERROR: "complex" is a composite type
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+ QUERY PLAN
+---------------------------------
+ Index Scan using st1_idx on st1
+ Index Cond: (val IS NULL)
+(2 rows)
+
+-- No.5-2-9
+UPDATE dbms_stats._column_stats_locked SET stanullfrac = 1
+ WHERE starelid = 'st1'::regclass
+ AND staattnum = 1
+ AND stainherit = false;
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+ QUERY PLAN
+-------------------------
+ Seq Scan on st1
+ Filter: (val IS NULL)
+(2 rows)
+
+-- No.5-2-10
+DELETE FROM dbms_stats._column_stats_locked
+ WHERE starelid = 'st1'::regclass
+ AND staattnum = 1
+ AND stainherit = false;
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+ QUERY PLAN
+---------------------------------
+ Index Scan using st1_idx on st1
+ Index Cond: (val IS NULL)
+(2 rows)
+
+-- No.5-2-8
+INSERT INTO dbms_stats._column_stats_locked
+ (starelid, staattnum, stainherit, stanullfrac)
+ VALUES ('st1'::regclass, 1, false, 1);
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+ QUERY PLAN
+-------------------------
+ Seq Scan on st1
+ Filter: (val IS NULL)
+(2 rows)
+
+-- No.5-2-11
+PREPARE p2 AS SELECT str FROM st1 WHERE lower(str) IS NULL;
+EXPLAIN (costs false) SELECT str FROM st1 WHERE lower(str) IS NULL;
+ QUERY PLAN
+------------------------------------
+ Index Scan using st1_exp on st1
+ Index Cond: (lower(str) IS NULL)
+(2 rows)
+
+EXPLAIN (costs false) EXECUTE p2;
+ QUERY PLAN
+------------------------------------
+ Index Scan using st1_exp on st1
+ Index Cond: (lower(str) IS NULL)
+(2 rows)
+
+INSERT INTO dbms_stats._relation_stats_locked (relid, relname)
+ VALUES ('st1_exp'::regclass, 'dummy');
+INSERT INTO dbms_stats._column_stats_locked
+ (starelid, staattnum, stainherit, stanullfrac)
+ VALUES ('st1_exp'::regclass, 1, false, 1);
+EXPLAIN (costs false) SELECT str FROM st1 WHERE lower(str) IS NULL;
+ QUERY PLAN
+--------------------------------
+ Seq Scan on st1
+ Filter: (lower(str) IS NULL)
+(2 rows)
+
+EXPLAIN (costs false) EXECUTE p2;
+ QUERY PLAN
+--------------------------------
+ Seq Scan on st1
+ Filter: (lower(str) IS NULL)
+(2 rows)
+
+DEALLOCATE p2;
+SELECT dbms_stats.unlock_database_stats();
+ unlock_database_stats
+-----------------------
+ -
+ st1
+ st1_exp
+(3 rows)
+
+/*
+ * No.5-3 dbms_stats.invalidate_relation_cache
+ */
+-- No.5-3-1
+SELECT dbms_stats.invalidate_relation_cache();
+ERROR: pg_dbms_stats: invalid trigger call
+-- No.5-3-2
+/*
+ * Driver function dbms_stats.invalidate_cache1
+ */
+CREATE TRIGGER invalidate_cache1
+ AFTER INSERT OR DELETE OR UPDATE
+ ON pt0
+ FOR EACH ROW EXECUTE PROCEDURE dbms_stats.invalidate_relation_cache();
+INSERT INTO pt0 VALUES (1,'2012/12/12');
+ERROR: pg_dbms_stats: invalid trigger call
+DROP TRIGGER invalidate_cache1 ON pt0;
+-- No.5-3-3
+/*
+ * Driver function dbms_stats.invalidate_cache2
+ */
+CREATE TRIGGER invalidate_cache2
+BEFORE INSERT OR DELETE OR UPDATE
+ ON pt0
+ FOR EACH STATEMENT EXECUTE PROCEDURE dbms_stats.invalidate_relation_cache();
+INSERT INTO pt0 VALUES (1,'2012/12/12');
+ERROR: pg_dbms_stats: invalid trigger call
+DROP TRIGGER invalidate_cache2 ON pt0;
+-- No.5-3-4
+/*
+ * Driver function dbms_stats.invalidate_cache3
+ */
+CREATE TRIGGER invalidate_cache3
+BEFORE TRUNCATE
+ ON pt0
+ FOR EACH STATEMENT EXECUTE PROCEDURE dbms_stats.invalidate_relation_cache();
+TRUNCATE TABLE pt0;
+ERROR: pg_dbms_stats: invalid trigger call
+DROP TRIGGER invalidate_cache3 ON pt0;
+-- No.5-3-5
+SELECT dbms_stats.unlock_database_stats();
+ unlock_database_stats
+-----------------------
+(0 rows)
+
+SELECT dbms_stats.lock_table_stats('st1');
+ lock_table_stats
+------------------
+ st1
+(1 row)
+
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+ QUERY PLAN
+---------------------------------
+ Index Scan using st1_idx on st1
+ Index Cond: (val IS NULL)
+(2 rows)
+
+INSERT INTO dbms_stats._relation_stats_locked (relid, relname) VALUES (0, 'dummy');
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+ QUERY PLAN
+---------------------------------
+ Index Scan using st1_idx on st1
+ Index Cond: (val IS NULL)
+(2 rows)
+
+-- No.5-3-6
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+ QUERY PLAN
+---------------------------------
+ Index Scan using st1_idx on st1
+ Index Cond: (val IS NULL)
+(2 rows)
+
+INSERT INTO dbms_stats._relation_stats_locked (relid, relname)
+ VALUES ('st1_idx'::regclass, 'st1_idx');
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+ QUERY PLAN
+---------------------------------
+ Index Scan using st1_idx on st1
+ Index Cond: (val IS NULL)
+(2 rows)
+
+-- No.5-3-7
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+ QUERY PLAN
+---------------------------------
+ Index Scan using st1_idx on st1
+ Index Cond: (val IS NULL)
+(2 rows)
+
+INSERT INTO dbms_stats._relation_stats_locked (relid, relname)
+ VALUES ('complex'::regclass, 'complex');
+ERROR: "complex" is a composite type
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+ QUERY PLAN
+---------------------------------
+ Index Scan using st1_idx on st1
+ Index Cond: (val IS NULL)
+(2 rows)
+
+-- No.5-3-9
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+ QUERY PLAN
+---------------------------------
+ Index Scan using st1_idx on st1
+ Index Cond: (val IS NULL)
+(2 rows)
+
+UPDATE dbms_stats._relation_stats_locked SET curpages = 1
+ WHERE relid = 'st1'::regclass;
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+ QUERY PLAN
+-------------------------
+ Seq Scan on st1
+ Filter: (val IS NULL)
+(2 rows)
+
+-- No.5-3-10
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+ QUERY PLAN
+-------------------------
+ Seq Scan on st1
+ Filter: (val IS NULL)
+(2 rows)
+
+DELETE FROM dbms_stats._relation_stats_locked
+ WHERE relid = 'st1'::regclass;
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+ QUERY PLAN
+---------------------------------
+ Index Scan using st1_idx on st1
+ Index Cond: (val IS NULL)
+(2 rows)
+
+-- No.5-3-8
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+ QUERY PLAN
+---------------------------------
+ Index Scan using st1_idx on st1
+ Index Cond: (val IS NULL)
+(2 rows)
+
+INSERT INTO dbms_stats._relation_stats_locked (relid, relname, curpages)
+ VALUES ('st1'::regclass, 'st1', 1);
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+ QUERY PLAN
+-------------------------
+ Seq Scan on st1
+ Filter: (val IS NULL)
+(2 rows)
+
+-- No.5-3-11
+SELECT dbms_stats.unlock_database_stats();
+ unlock_database_stats
+-----------------------
+ -
+ st1
+ st1_idx
+(3 rows)
+
+SELECT dbms_stats.lock_table_stats('st1');
+ lock_table_stats
+------------------
+ st1
+(1 row)
+
+SELECT relname, curpages FROM dbms_stats.relation_stats_locked
+ WHERE relid = 'st1'::regclass;
+ relname | curpages
+------------+----------
+ public.st1 | 45
+(1 row)
+
+SELECT pg_sleep(0.5);
+ pg_sleep
+----------
+
+(1 row)
+
+SELECT pg_stat_reset();
+ pg_stat_reset
+---------------
+
+(1 row)
+
+UPDATE dbms_stats._relation_stats_locked SET curpages = 1000
+ WHERE relid = 'st1_exp'::regclass;
+SELECT pg_sleep(0.5);
+ pg_sleep
+----------
+
+(1 row)
+
+SELECT * FROM lockd_io;
+ relname | hbr | hbh | ibr | ibh
+------------------------+-----+-----+-----+-----
+ _relation_stats_locked | 0 | 0 | 0 | 1
+ _column_stats_locked | 0 | 0 | 0 | 0
+(2 rows)
+
+SELECT relname, curpages FROM dbms_stats.relation_stats_locked
+ WHERE relid = 'st1'::regclass;
+ relname | curpages
+------------+----------
+ public.st1 | 45
+(1 row)
+
+SELECT pg_sleep(0.5);
+ pg_sleep
+----------
+
+(1 row)
+
+SELECT * FROM lockd_io;
+ relname | hbr | hbh | ibr | ibh
+------------------------+-----+-----+-----+-----
+ _relation_stats_locked | 0 | 1 | 0 | 2
+ _column_stats_locked | 0 | 0 | 0 | 0
+(2 rows)
+
+/*
+ * No.5-4 StatsCacheRelCallback
+ */
+-- No.5-4-1
+UPDATE dbms_stats._relation_stats_locked SET curpages = 1
+ WHERE relid = 'st1'::regclass;
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+ QUERY PLAN
+-------------------------
+ Seq Scan on st1
+ Filter: (val IS NULL)
+(2 rows)
+
+\c
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+ QUERY PLAN
+---------------------------------
+ Index Scan using st1_idx on st1
+ Index Cond: (val IS NULL)
+(2 rows)
+
+LOAD 'pg_dbms_stats';
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+ QUERY PLAN
+-------------------------
+ Seq Scan on st1
+ Filter: (val IS NULL)
+(2 rows)
+
+SELECT dbms_stats.unlock_database_stats();
+ unlock_database_stats
+-----------------------
+ st1
+(1 row)
+
+SELECT dbms_stats.lock_table_stats('st1');
+ lock_table_stats
+------------------
+ st1
+(1 row)
+
+-- No.5-4-3
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+ QUERY PLAN
+---------------------------------
+ Index Scan using st1_idx on st1
+ Index Cond: (val IS NULL)
+(2 rows)
+
+\! psql contrib_regression -c "UPDATE dbms_stats._column_stats_locked SET stanullfrac = 1 WHERE starelid = 'st1'::regclass"
+UPDATE 2
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+ QUERY PLAN
+-------------------------
+ Seq Scan on st1
+ Filter: (val IS NULL)
+(2 rows)
+
+-- No.5-4-4
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+ QUERY PLAN
+-------------------------
+ Seq Scan on st1
+ Filter: (val IS NULL)
+(2 rows)
+
+\! psql contrib_regression -c "DELETE FROM dbms_stats._column_stats_locked WHERE starelid = 'st1'::regclass"
+DELETE 2
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+ QUERY PLAN
+---------------------------------
+ Index Scan using st1_idx on st1
+ Index Cond: (val IS NULL)
+(2 rows)
+
+-- No.5-4-2
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+ QUERY PLAN
+---------------------------------
+ Index Scan using st1_idx on st1
+ Index Cond: (val IS NULL)
+(2 rows)
+
+\! psql contrib_regression -c "INSERT INTO dbms_stats._column_stats_locked (starelid, staattnum, stainherit, stanullfrac) VALUES ('st1'::regclass, 1, false, 1)"
+INSERT 0 1
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+ QUERY PLAN
+-------------------------
+ Seq Scan on st1
+ Filter: (val IS NULL)
+(2 rows)
+
+SELECT dbms_stats.unlock_database_stats();
+ unlock_database_stats
+-----------------------
+ st1
+(1 row)
+
+-- No.5-4-5
+CREATE TABLE s0.droptest(id integer);
+INSERT INTO s0.droptest VALUES (1),(2),(3);
+VACUUM ANALYZE;
+SELECT * FROM s0.droptest
+ WHERE id = 1;
+ id
+----
+ 1
+(1 row)
+
+SELECT pg_sleep(0.5);
+ pg_sleep
+----------
+
+(1 row)
+
+SELECT pg_stat_reset();
+ pg_stat_reset
+---------------
+
+(1 row)
+
+ALTER TABLE s0.droptest RENAME TO test;
+SELECT pg_sleep(0.5);
+ pg_sleep
+----------
+
+(1 row)
+
+SELECT * FROM lockd_io;
+ relname | hbr | hbh | ibr | ibh
+------------------------+-----+-----+-----+-----
+ _relation_stats_locked | 0 | 0 | 0 | 0
+ _column_stats_locked | 0 | 0 | 0 | 0
+(2 rows)
+
+SELECT * FROM s0.test
+ WHERE id = 1;
+ id
+----
+ 1
+(1 row)
+
+SELECT pg_sleep(0.5);
+ pg_sleep
+----------
+
+(1 row)
+
+SELECT * FROM lockd_io;
+ relname | hbr | hbh | ibr | ibh
+------------------------+-----+-----+-----+-----
+ _relation_stats_locked | 0 | 0 | 0 | 1
+ _column_stats_locked | 0 | 0 | 0 | 1
+(2 rows)
+
+ALTER TABLE s0.test RENAME TO droptest;
+-- No.5-4-6
+SELECT * FROM s0.droptest
+ WHERE id = 1;
+ id
+----
+ 1
+(1 row)
+
+SELECT pg_sleep(0.5);
+ pg_sleep
+----------
+
+(1 row)
+
+SELECT pg_stat_reset();
+ pg_stat_reset
+---------------
+
+(1 row)
+
+ALTER TABLE s0.droptest RENAME id TO test;
+SELECT pg_sleep(0.5);
+ pg_sleep
+----------
+
+(1 row)
+
+SELECT * FROM lockd_io;
+ relname | hbr | hbh | ibr | ibh
+------------------------+-----+-----+-----+-----
+ _relation_stats_locked | 0 | 0 | 0 | 0
+ _column_stats_locked | 0 | 0 | 0 | 0
+(2 rows)
+
+SELECT * FROM s0.droptest
+ WHERE test = 1;
+ test
+------
+ 1
+(1 row)
+
+SELECT pg_sleep(0.5);
+ pg_sleep
+----------
+
+(1 row)
+
+SELECT * FROM lockd_io;
+ relname | hbr | hbh | ibr | ibh
+------------------------+-----+-----+-----+-----
+ _relation_stats_locked | 0 | 0 | 0 | 1
+ _column_stats_locked | 0 | 0 | 0 | 1
+(2 rows)
+
+ALTER TABLE s0.droptest RENAME test TO id;
+-- No.5-4-8
+INSERT INTO s0.droptest VALUES (4);
+SELECT * FROM s0.droptest
+ WHERE id = 1;
+ id
+----
+ 1
+(1 row)
+
+SELECT pg_sleep(0.5);
+ pg_sleep
+----------
+
+(1 row)
+
+SELECT pg_stat_reset();
+ pg_stat_reset
+---------------
+
+(1 row)
+
+ANALYZE;
+SELECT pg_sleep(0.5);
+ pg_sleep
+----------
+
+(1 row)
+
+SELECT * FROM lockd_io;
+ relname | hbr | hbh | ibr | ibh
+------------------------+-----+-----+-----+-----
+ _relation_stats_locked | 0 | 0 | 0 | 0
+ _column_stats_locked | 0 | 0 | 0 | 0
+(2 rows)
+
+SELECT * FROM s0.droptest
+ WHERE id = 1;
+ id
+----
+ 1
+(1 row)
+
+SELECT pg_sleep(1.0);
+ pg_sleep
+----------
+
+(1 row)
+
+SELECT * FROM lockd_io;
+ relname | hbr | hbh | ibr | ibh
+------------------------+-----+-----+-----+-----
+ _relation_stats_locked | 0 | 0 | 0 | 1
+ _column_stats_locked | 0 | 0 | 0 | 1
+(2 rows)
+
+-- No.5-4-9
+DELETE FROM s0.droptest;
+INSERT INTO s0.droptest VALUES (4),(5);
+SELECT * FROM s0.droptest
+ WHERE id = 4;
+ id
+----
+ 4
+(1 row)
+
+SELECT pg_sleep(0.5);
+ pg_sleep
+----------
+
+(1 row)
+
+SELECT pg_stat_reset();
+ pg_stat_reset
+---------------
+
+(1 row)
+
+VACUUM;
+SELECT pg_sleep(0.5);
+ pg_sleep
+----------
+
+(1 row)
+
+SELECT * FROM lockd_io;
+ relname | hbr | hbh | ibr | ibh
+------------------------+-----+-----+-----+-----
+ _relation_stats_locked | 0 | 2 | 0 | 1
+ _column_stats_locked | 0 | 2 | 0 | 1
+(2 rows)
+
+SELECT * FROM s0.droptest
+ WHERE id = 4;
+ id
+----
+ 4
+(1 row)
+
+SELECT pg_sleep(0.5);
+ pg_sleep
+----------
+
+(1 row)
+
+SELECT * FROM lockd_io;
+ relname | hbr | hbh | ibr | ibh
+------------------------+-----+-----+-----+-----
+ _relation_stats_locked | 0 | 2 | 0 | 2
+ _column_stats_locked | 0 | 2 | 0 | 2
+(2 rows)
+
+-- clean up
+DROP TABLE s0.droptest;
+/*
+ * No.6-1 dbms_stats.relname
+ */
+-- No.6-1-1
+SELECT dbms_stats.relname('aaa', 'bbb');
+ relname
+---------
+ aaa.bbb
+(1 row)
+
+-- No.6-1-2
+SELECT dbms_stats.relname(NULL, 'bbb');
+ relname
+---------
+ (null)
+(1 row)
+
+-- No.6-1-3
+SELECT dbms_stats.relname('aaa', NULL);
+ relname
+---------
+ (null)
+(1 row)
+
+-- No.6-1-4
+SELECT dbms_stats.relname(NULL, NULL);
+ relname
+---------
+ (null)
+(1 row)
+
+-- No.6-1-5
+SELECT dbms_stats.relname('', '');
+ relname
+---------
+ "".""
+(1 row)
+
+-- No.6-1-6
+SELECT dbms_stats.relname('aAa', 'bBb');
+ relname
+-------------
+ "aAa"."bBb"
+(1 row)
+
+-- No.6-1-7
+SELECT dbms_stats.relname('a a', 'b b');
+ relname
+-------------
+ "a a"."b b"
+(1 row)
+
+-- No.6-1-8
+SELECT dbms_stats.relname('a.a', 'b.b');
+ relname
+-------------
+ "a.a"."b.b"
+(1 row)
+
+-- No.6-1-9
+SELECT dbms_stats.relname(E'a\na', E'b\nb');
+ relname
+---------
+ "a +
+ a"."b +
+ b"
+(1 row)
+
+-- No.6-1-10
+SELECT dbms_stats.relname('a"a', 'b"b');
+ relname
+---------------
+ "a""a"."b""b"
+(1 row)
+
+-- No.6-1-11
+SELECT dbms_stats.relname('あいう', '亞伊卯');
+ relname
+-------------------
+ "あいう"."亞伊卯"
+(1 row)
+
+/*
+ * No.6-2 dbms_stats.is_system_schema
+ */
+-- No.6-2-1
+SELECT dbms_stats.is_system_schema('pg_catalog');
+ is_system_schema
+------------------
+ t
+(1 row)
+
+-- No.6-2-2
+SELECT dbms_stats.is_system_schema('pg_toast');
+ is_system_schema
+------------------
+ t
+(1 row)
+
+-- No.6-2-3
+SELECT dbms_stats.is_system_schema('information_schema');
+ is_system_schema
+------------------
+ t
+(1 row)
+
+-- No.6-2-4
+SELECT dbms_stats.is_system_schema('dbms_stats');
+ is_system_schema
+------------------
+ t
+(1 row)
+
+-- No.6-2-5
+SELECT dbms_stats.is_system_schema(NULL);
+ is_system_schema
+------------------
+ (null)
+(1 row)
+
+-- No.6-2-6
+SELECT dbms_stats.is_system_schema('');
+ is_system_schema
+------------------
+ f
+(1 row)
+
+-- No.6-2-7
+SELECT dbms_stats.is_system_schema('s0');
+ is_system_schema
+------------------
+ f
+(1 row)
+
+-- No.6-2-8
+/*
+ * Driver function dbms_stats.is_system_schema1
+ */
+CREATE FUNCTION dbms_stats.is_system_schema1(schemaname text)
+ RETURNS integer AS
+ '$libdir/pg_dbms_stats', 'dbms_stats_is_system_schema'
+ LANGUAGE C IMMUTABLE STRICT;
+SELECT dbms_stats.is_system_schema1('s0');
+ is_system_schema1
+-------------------
+ 0
+(1 row)
+
+DROP FUNCTION dbms_stats.is_system_schema1(schemaname text);
+/*
+ * No.6-3 dbms_stats.is_system_catalog
+ */
+-- No.6-3-1
+SELECT dbms_stats.is_system_catalog('s0.st0');
+ is_system_catalog
+-------------------
+ f
+(1 row)
+
+-- No.6-3-2
+SELECT dbms_stats.is_system_catalog('st0');
+ is_system_catalog
+-------------------
+ f
+(1 row)
+
+-- No.6-3-3
+SELECT dbms_stats.is_system_catalog('s00.s0');
+ERROR: schema "s00" does not exist
+LINE 1: SELECT dbms_stats.is_system_catalog('s00.s0');
+ ^
+-- No.6-3-4
+SELECT dbms_stats.is_system_catalog(NULL);
+ is_system_catalog
+-------------------
+ t
+(1 row)
+
+-- No.6-3-5
+/*
+ * Driver function dbms_stats.is_system_catalog1
+ */
+CREATE FUNCTION dbms_stats.is_system_catalog1(relid regclass)
+RETURNS integer AS
+'$libdir/pg_dbms_stats', 'dbms_stats_is_system_catalog'
+LANGUAGE C STABLE;
+SELECT dbms_stats.is_system_catalog1('s0.st0');
+ is_system_catalog1
+--------------------
+ 0
+(1 row)
+
+DROP FUNCTION dbms_stats.is_system_catalog1(relid regclass);
+/*
+ * No.6-4 dbms_stats.is_target_relkind
+ */
+-- No.6-4-1
+SELECT dbms_stats.is_target_relkind('r');
+ is_target_relkind
+-------------------
+ t
+(1 row)
+
+-- No.6-4-2
+SELECT dbms_stats.is_target_relkind('i');
+ is_target_relkind
+-------------------
+ t
+(1 row)
+
+-- No.6-4-3
+SELECT dbms_stats.is_target_relkind('S');
+ is_target_relkind
+-------------------
+ f
+(1 row)
+
+-- No.6-4-4
+SELECT dbms_stats.is_target_relkind('v');
+ is_target_relkind
+-------------------
+ f
+(1 row)
+
+-- No.6-4-5
+SELECT dbms_stats.is_target_relkind('c');
+ is_target_relkind
+-------------------
+ f
+(1 row)
+
+-- No.6-4-6
+SELECT dbms_stats.is_target_relkind('t');
+ is_target_relkind
+-------------------
+ f
+(1 row)
+
+-- No.6-4-7
+SELECT dbms_stats.is_target_relkind('a');
+ is_target_relkind
+-------------------
+ f
+(1 row)
+
+-- No.6-4-8
+SELECT dbms_stats.is_target_relkind('');
+ is_target_relkind
+-------------------
+ f
+(1 row)
+
+-- No.6-4-9
+SELECT dbms_stats.is_target_relkind(NULL);
+ is_target_relkind
+-------------------
+ (null)
+(1 row)
+
+--#No.6-4-10 result varies according to a version
+/*
+ * No.7-1 dbms_stats.backup
+ */
+INSERT INTO dbms_stats.backup_history(id, time, unit) values(1, '2012-01-01', 'd');
+-- No.7-1-1
+DELETE FROM dbms_stats.relation_stats_backup;
+SELECT dbms_stats.backup(1, 's0.st0'::regclass, NULL);
+ backup
+--------
+ 1
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats.relation_stats_backup
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+--------
+ s0.st0
+(1 row)
+
+SELECT starelid::regclass, staattnum FROM dbms_stats.column_stats_backup
+ GROUP BY starelid, staattnum
+ ORDER BY starelid, staattnum;
+ starelid | staattnum
+----------+-----------
+ s0.st0 | 1
+ s0.st0 | 2
+(2 rows)
+
+-- No.7-1-2
+DELETE FROM dbms_stats.relation_stats_backup;
+SELECT dbms_stats.backup(1, 'st0'::regclass, NULL);
+ backup
+--------
+ 1
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats.relation_stats_backup
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+-------
+ st0
+(1 row)
+
+SELECT starelid::regclass, staattnum FROM dbms_stats.column_stats_backup
+ GROUP BY starelid, staattnum
+ ORDER BY starelid, staattnum;
+ starelid | staattnum
+----------+-----------
+ st0 | 1
+ st0 | 2
+(2 rows)
+
+-- No.7-1-3
+DELETE FROM dbms_stats.relation_stats_backup;
+SELECT dbms_stats.backup(1, 'public.notfound'::regclass, NULL);
+ERROR: relation "public.notfound" does not exist
+LINE 1: SELECT dbms_stats.backup(1, 'public.notfound'::regclass, NUL...
+ ^
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+ count
+-------
+ 0
+(1 row)
+
+-- No.7-1-4
+DELETE FROM dbms_stats.relation_stats_backup;
+SELECT dbms_stats.backup(1, 's0.st0'::regclass, NULL);
+ backup
+--------
+ 1
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats.relation_stats_backup
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+--------
+ s0.st0
+(1 row)
+
+SELECT starelid::regclass, staattnum FROM dbms_stats.column_stats_backup
+ GROUP BY starelid, staattnum
+ ORDER BY starelid, staattnum;
+ starelid | staattnum
+----------+-----------
+ s0.st0 | 1
+ s0.st0 | 2
+(2 rows)
+
+-- No.7-1-5
+DELETE FROM dbms_stats.relation_stats_backup;
+SELECT dbms_stats.backup(1, 'pg_toast.pg_toast_2618'::regclass, NULL);
+ backup
+--------
+ 1
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats.relation_stats_backup
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+-------
+(0 rows)
+
+SELECT starelid::regclass, staattnum FROM dbms_stats.column_stats_backup
+ GROUP BY starelid, staattnum
+ ORDER BY starelid, staattnum;
+ starelid | staattnum
+----------+-----------
+(0 rows)
+
+-- No.7-1-6
+DELETE FROM dbms_stats.relation_stats_backup;
+SELECT dbms_stats.backup(1, 's0.st0_idx'::regclass, NULL);
+ backup
+--------
+ 1
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats.relation_stats_backup
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+------------
+ s0.st0_idx
+(1 row)
+
+SELECT starelid::regclass, staattnum FROM dbms_stats.column_stats_backup
+ GROUP BY starelid, staattnum
+ ORDER BY starelid, staattnum;
+ starelid | staattnum
+----------+-----------
+(0 rows)
+
+-- No.7-1-7
+DELETE FROM dbms_stats.relation_stats_backup;
+SELECT dbms_stats.backup(1, 's0.ss0'::regclass, NULL);
+ backup
+--------
+ 1
+(1 row)
+
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+ count
+-------
+ 0
+(1 row)
+
+-- No.7-1-8
+DELETE FROM dbms_stats.relation_stats_backup;
+SELECT dbms_stats.backup(1, 's0.sc0'::regclass, NULL);
+ backup
+--------
+ 1
+(1 row)
+
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+ count
+-------
+ 0
+(1 row)
+
+--#No.7-1-9 ut-<PG Version>
+-- No.7-1-10
+DELETE FROM dbms_stats.relation_stats_backup;
+SELECT dbms_stats.backup(1, 's0.st0'::regclass, 1::int2);
+ backup
+--------
+ 1
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats.relation_stats_backup
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+--------
+ s0.st0
+(1 row)
+
+SELECT starelid::regclass, staattnum FROM dbms_stats.column_stats_backup
+ GROUP BY starelid, staattnum
+ ORDER BY starelid, staattnum;
+ starelid | staattnum
+----------+-----------
+ s0.st0 | 1
+(1 row)
+
+--#No.7-1-11 ut-<PG Version>
+-- No.7-1-12
+DELETE FROM dbms_stats.relation_stats_backup;
+SELECT dbms_stats.backup(1, 's0.st0'::regclass, NULL);
+ backup
+--------
+ 1
+(1 row)
+
+SELECT relid::regclass FROM dbms_stats.relation_stats_backup
+ GROUP BY relid
+ ORDER BY relid;
+ relid
+--------
+ s0.st0
+(1 row)
+
+SELECT starelid::regclass, staattnum FROM dbms_stats.column_stats_backup
+ GROUP BY starelid, staattnum
+ ORDER BY starelid, staattnum;
+ starelid | staattnum
+----------+-----------
+ s0.st0 | 1
+ s0.st0 | 2
+(2 rows)
+
+--#No.7-1-13 ut-<PG Version>
+-- No.7-1-14
+DELETE FROM dbms_stats.relation_stats_backup;
+SELECT dbms_stats.backup(1, 'pg_catalog.pg_class'::regclass, NULL);
+ backup
+--------
+ 1
+(1 row)
+
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+ count
+-------
+ 0
+(1 row)
+
+-- No.7-1-15
+SELECT dbms_stats.backup(1, 's0.st0'::regclass, NULL);
+ backup
+--------
+ 1
+(1 row)
+
+DELETE FROM dbms_stats.column_stats_backup;
+SELECT starelid::regclass, staattnum FROM dbms_stats.column_stats_backup
+ GROUP BY starelid, staattnum
+ ORDER BY starelid, staattnum;
+ starelid | staattnum
+----------+-----------
+(0 rows)
+
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 1
+(1 row)
+
+SET client_min_messages TO FATAL;
+SELECT dbms_stats.backup(1, 's0.st0'::regclass, NULL);
+RESET client_min_messages;
+\! tail ${PGDATA}/pg_log/postgresql.log > results/ut_no2_1_15.out
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 1
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+ count
+-------
+ 0
+(1 row)
+
+--#No.7-1-17 ut-<PG Version>
+/*
+ * Stab function dbms_stats.backup
+ */
+ALTER FUNCTION dbms_stats.backup(
+ backup_id int8,
+ relid regclass,
+ attnum int2)
+ RENAME TO truth_func_backup;
+CREATE OR REPLACE FUNCTION dbms_stats.backup(
+ backup_id int8,
+ regclass,
+ attnum int2)
+RETURNS int8 AS
+$$
+BEGIN
+ RAISE NOTICE 'arguments are %, %, %', $1, $2, $3;
+ RETURN 1;
+END;
+$$
+LANGUAGE plpgsql;
+ALTER FUNCTION dbms_stats.backup(
+ relid regclass,
+ attname text,
+ comment text)
+ RENAME TO truth_func_backup;
+CREATE OR REPLACE FUNCTION dbms_stats.backup(
+ relid regclass DEFAULT NULL,
+ attname text DEFAULT NULL,
+ comment text DEFAULT NULL)
+RETURNS int8 AS
+$$
+BEGIN
+ IF $3 = '<NULL>' THEN
+ RAISE NOTICE 'third argument is not NULL but string "<NULL>"';
+ END IF;
+ RAISE NOTICE 'arguments are %, %, %', $1, $2, $3;
+ RETURN 1;
+END;
+$$
+LANGUAGE plpgsql;
+/*
+ * No.8-2 dbms_stats.backup_database_stats
+ */
+SELECT setval('dbms_stats.backup_history_id_seq',8);
+ setval
+--------
+ 8
+(1 row)
+
+-- No.8-2-1
+SELECT dbms_stats.backup_database_stats('comment');
+NOTICE: arguments are <NULL>, <NULL>, comment
+ backup_database_stats
+-----------------------
+ 1
+(1 row)
+
+/*
+ * No.8-4 dbms_stats.backup_table_stats(regclass,comment)
+ */
+-- No.8-4-1
+SELECT dbms_stats.backup_table_stats('s0.st0', 'comment');
+NOTICE: arguments are s0.st0, <NULL>, comment
+ backup_table_stats
+--------------------
+ 1
+(1 row)
+
+-- No.8-4-2
+SELECT dbms_stats.backup_table_stats('st0', 'comment');
+NOTICE: arguments are st0, <NULL>, comment
+ backup_table_stats
+--------------------
+ 1
+(1 row)
+
+-- No.8-4-3
+SELECT dbms_stats.backup_table_stats('s00.s0', 'comment');
+ERROR: schema "s00" does not exist
+LINE 1: SELECT dbms_stats.backup_table_stats('s00.s0', 'comment');
+ ^
+/*
+ * No.8-5 dbms_stats.backup_table_stats(schemaname, tablename, comment)
+ */
+-- No.8-5-1
+SELECT dbms_stats.backup_table_stats('s0', 'st0', 'comment');
+NOTICE: arguments are s0.st0, <NULL>, comment
+ backup_table_stats
+--------------------
+ 1
+(1 row)
+
+-- No.8-5-2
+SELECT dbms_stats.backup_table_stats('s00', 's0', 'comment');
+ERROR: schema "s00" does not exist
+/*
+ * No.8-6 dbms_stats.backup_column_stats(regclass, attname, comment)
+ */
+-- No.8-6-1
+SELECT dbms_stats.backup_column_stats('s0.st0', 'id', 'comment');
+NOTICE: arguments are s0.st0, id, comment
+ backup_column_stats
+---------------------
+ 1
+(1 row)
+
+-- No.8-6-2
+SELECT dbms_stats.backup_column_stats('st0', 'id', 'comment');
+NOTICE: arguments are st0, id, comment
+ backup_column_stats
+---------------------
+ 1
+(1 row)
+
+-- No.8-6-3
+SELECT dbms_stats.backup_column_stats('s00.s0', 'id', 'comment');
+ERROR: schema "s00" does not exist
+LINE 1: SELECT dbms_stats.backup_column_stats('s00.s0', 'id', 'comme...
+ ^
+/*
+ * No.8-7 dbms_stats.backup_column_stats(schemaname, tablename, attname, comment)
+ */
+-- No.8-7-1
+SELECT dbms_stats.backup_column_stats('s0', 'st0', 'id', 'comment');
+NOTICE: arguments are s0.st0, id, comment
+ backup_column_stats
+---------------------
+ 1
+(1 row)
+
+-- No.8-7-2
+SELECT dbms_stats.backup_column_stats('s00', 's0', 'id', 'comment');
+ERROR: schema "s00" does not exist
+/*
+ * Delete stab function dbms_stats.backup
+ */
+DROP FUNCTION dbms_stats.backup(
+ backup_id int8,
+ regclass,
+ attnum int2);
+ALTER FUNCTION dbms_stats.truth_func_backup(
+ backup_id int8,
+ regclass,
+ attnum int2)
+ RENAME TO backup;
+DROP FUNCTION dbms_stats.backup(
+ regclass,
+ attname text,
+ comment text);
+ALTER FUNCTION dbms_stats.truth_func_backup(
+ regclass,
+ attname text,
+ comment text)
+ RENAME TO backup;
+VACUUM ANALYZE;
+/*
+ * create backup statistics state A
+ */
+DELETE FROM dbms_stats.backup_history;
+INSERT INTO dbms_stats.backup_history(id, time, unit)
+ VALUES (1, '2012-02-29 23:59:56.999999', 'd');
+SELECT setval('dbms_stats.backup_history_id_seq',1);
+ setval
+--------
+ 1
+(1 row)
+
+SELECT dbms_stats.backup();
+ backup
+--------
+ 2
+(1 row)
+
+UPDATE dbms_stats.backup_history
+ SET time = '2012-02-29 23:59:57'
+ WHERE id = 2;
+SELECT dbms_stats.backup('s0.st0');
+ backup
+--------
+ 3
+(1 row)
+
+UPDATE dbms_stats.backup_history
+ SET time = '2012-02-29 23:59:57.000001'
+ WHERE id = 3;
+SELECT dbms_stats.backup();
+ backup
+--------
+ 4
+(1 row)
+
+UPDATE dbms_stats.backup_history
+ SET time = '2012-02-29 23:59:58'
+ WHERE id = 4;
+DELETE FROM dbms_stats.relation_stats_backup
+ WHERE id = 4;
+SELECT dbms_stats.backup('s0.st0', 'id');
+ backup
+--------
+ 5
+(1 row)
+
+UPDATE dbms_stats.backup_history
+ SET time = '2012-03-01 00:00:00'
+ WHERE id = 5;
+SELECT dbms_stats.backup('s0.st0');
+ backup
+--------
+ 6
+(1 row)
+
+UPDATE dbms_stats.backup_history
+ SET time = '2012-03-01 00:00:02'
+ WHERE id = 6;
+SELECT dbms_stats.backup('public.st0');
+ backup
+--------
+ 7
+(1 row)
+
+UPDATE dbms_stats.backup_history
+ SET time = '2012-03-01 00:00:04'
+ WHERE id = 7;
+INSERT INTO dbms_stats.backup_history(time, unit)
+ VALUES ('2012-03-01 00:00:06', 's');
+SELECT dbms_stats.backup(8, c.oid, NULL)
+ FROM pg_catalog.pg_class c,
+ pg_catalog.pg_namespace n
+ WHERE n.nspname = 's0'
+ AND c.relnamespace = n.oid
+ AND c.relkind IN ('r', 'i');
+ backup
+--------
+ 8
+ 8
+ 8
+ 8
+ 8
+ 8
+(6 rows)
+
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+ id | time | unit | comment
+----+-------------------------------------+------+---------
+ 1 | Wed Feb 29 23:59:56.999999 2012 PST | d | (null)
+ 2 | Wed Feb 29 23:59:57 2012 PST | d | (null)
+ 3 | Wed Feb 29 23:59:57.000001 2012 PST | t | (null)
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(8 rows)
+
+VACUUM ANALYZE;
+/*
+ * Stab function dbms_stats.restore
+ */
+ALTER FUNCTION dbms_stats.restore(int8, regclass, text)
+ RENAME TO truth_func_restore;
+CREATE FUNCTION dbms_stats.restore(int8, regclass DEFAULT NULL, text DEFAULT NULL)
+RETURNS SETOF regclass AS
+$$
+BEGIN
+ RAISE NOTICE 'arguments are "%, %, %"', $1, $2, $3;
+ RETURN QUERY
+ SELECT c.oid::regclass
+ FROM pg_class c, dbms_stats.relation_stats_backup b
+ WHERE (c.oid = $2 OR $2 IS NULL)
+ AND c.oid = b.relid
+ AND c.relkind IN ('r', 'i')
+ AND (b.id <= $1 OR $1 IS NOT NULL)
+ GROUP BY c.oid
+ ORDER BY c.oid::regclass::text;
+END;
+$$
+LANGUAGE plpgsql;
+/*
+ * No.10-3 dbms_stats.restore_table_stats(regclass, as_of_timestamp)
+ */
+-- No.10-3-1
+SELECT dbms_stats.restore_table_stats('s0.st0', '2012-02-29 23:59:57');
+NOTICE: arguments are "2, s0.st0, <NULL>"
+CONTEXT: SQL function "restore_table_stats" statement 1
+ restore_table_stats
+---------------------
+ s0.st0
+(1 row)
+
+-- No.10-3-2
+SELECT dbms_stats.restore_table_stats('s0.st0', '2012-02-29 23:59:57.000002');
+NOTICE: arguments are "3, s0.st0, <NULL>"
+CONTEXT: SQL function "restore_table_stats" statement 1
+ restore_table_stats
+---------------------
+ s0.st0
+(1 row)
+
+-- No.10-3-3
+SELECT dbms_stats.restore_table_stats('s0.st0', '2012-01-01 00:00:00');
+NOTICE: arguments are "<NULL>, s0.st0, <NULL>"
+CONTEXT: SQL function "restore_table_stats" statement 1
+ restore_table_stats
+---------------------
+(0 rows)
+
+--#No.10-3-4 is skipped after lock tests
+-- No.10-3-5
+SELECT dbms_stats.restore_table_stats('s0.st0', '2012-02-29 23:59:57');
+NOTICE: arguments are "2, s0.st0, <NULL>"
+CONTEXT: SQL function "restore_table_stats" statement 1
+ restore_table_stats
+---------------------
+ s0.st0
+(1 row)
+
+-- No.10-3-6
+SELECT dbms_stats.restore_table_stats('st0', '2012-02-29 23:59:57');
+NOTICE: arguments are "2, st0, <NULL>"
+CONTEXT: SQL function "restore_table_stats" statement 1
+ restore_table_stats
+---------------------
+ st0
+(1 row)
+
+-- No.10-3-7
+SELECT dbms_stats.restore_table_stats('s00.s0', '2012-02-29 23:59:57');
+ERROR: schema "s00" does not exist
+LINE 1: SELECT dbms_stats.restore_table_stats('s00.s0', '2012-02-29 ...
+ ^
+/*
+ * Stab dbms_stats.restore_table_stats(regclass, as_of_timestamp)
+ */
+CREATE OR REPLACE FUNCTION dbms_stats.restore_table_stats(
+ relid regclass,
+ as_of_timestamp timestamp with time zone)
+RETURNS SETOF regclass AS
+$$
+BEGIN
+ RAISE NOTICE 'arguments are %, %', $1, $2;
+ RETURN QUERY
+ SELECT $1;
+END
+$$
+LANGUAGE plpgsql;
+/*
+ * No.10-4 dbms_stats.restore_table_stats(schemaname, tablename, as_of_timestamp)
+ */
+-- No.10-4-1
+SELECT dbms_stats.restore_table_stats('s0', 'st0', '2012-02-29 23:59:57');
+NOTICE: arguments are s0.st0, Wed Feb 29 23:59:57 2012 PST
+CONTEXT: SQL function "restore_table_stats" statement 1
+ restore_table_stats
+---------------------
+ s0.st0
+(1 row)
+
+/*
+ * No.10-5 dbms_stats.restore_column_stats(regclass, attname, as_of_timestamp)
+ */
+-- No.10-5-1
+SELECT dbms_stats.restore_column_stats('s0.st0', 'id', '2012-02-29 23:59:57');
+NOTICE: arguments are "2, s0.st0, id"
+CONTEXT: SQL function "restore_column_stats" statement 1
+ restore_column_stats
+----------------------
+ s0.st0
+(1 row)
+
+-- No.10-5-2
+SELECT dbms_stats.restore_column_stats('s0.st0', 'id', '2012-02-29 23:59:57.000002');
+NOTICE: arguments are "3, s0.st0, id"
+CONTEXT: SQL function "restore_column_stats" statement 1
+ restore_column_stats
+----------------------
+ s0.st0
+(1 row)
+
+-- No.10-5-3
+SELECT dbms_stats.restore_column_stats('s0.st0', 'id', '2012-01-01 00:00:00');
+NOTICE: arguments are "<NULL>, s0.st0, id"
+CONTEXT: SQL function "restore_column_stats" statement 1
+ restore_column_stats
+----------------------
+(0 rows)
+
+--#No.10-5-4 is skipped after lock tests
+-- No.10-5-5
+SELECT dbms_stats.restore_column_stats('s0.st0', 'id', '2012-02-29 23:59:57');
+NOTICE: arguments are "2, s0.st0, id"
+CONTEXT: SQL function "restore_column_stats" statement 1
+ restore_column_stats
+----------------------
+ s0.st0
+(1 row)
+
+-- No.10-5-6
+SELECT dbms_stats.restore_column_stats('st0', 'id', '2012-02-29 23:59:57');
+NOTICE: arguments are "2, st0, id"
+CONTEXT: SQL function "restore_column_stats" statement 1
+ restore_column_stats
+----------------------
+ st0
+(1 row)
+
+-- No.10-5-7
+SELECT dbms_stats.restore_column_stats('s00.s0', 'id', '2012-02-29 23:59:57');
+ERROR: schema "s00" does not exist
+LINE 1: SELECT dbms_stats.restore_column_stats('s00.s0', 'id', '2012...
+ ^
+/*
+ * No.10-6 dbms_stats.restore_column_stats(
+ * schemaname, tablename, attname, as_of_timestamp)
+ */
+-- No.10-6-1
+SELECT dbms_stats.restore_column_stats('s0', 'st0', 'id', '2012-02-29 23:59:57');
+NOTICE: arguments are "2, s0.st0, id"
+CONTEXT: SQL function "restore_column_stats" statement 1
+ restore_column_stats
+----------------------
+ s0.st0
+(1 row)
+
+/*
+ * No.15-1 dbms_stats.purge_stats
+ */
+-- No.15-1-1
+SELECT * FROM dbms_stats.backup_history;
+ id | time | unit | comment
+----+-------------------------------------+------+---------
+ 1 | Wed Feb 29 23:59:56.999999 2012 PST | d | (null)
+ 2 | Wed Feb 29 23:59:57 2012 PST | d | (null)
+ 3 | Wed Feb 29 23:59:57.000001 2012 PST | t | (null)
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(8 rows)
+
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+----------+---------------
+ (null) | ExclusiveLock
+(1 row)
+
+SELECT id, unit, comment FROM dbms_stats.purge_stats(2);
+ id | unit | comment
+----+------+---------
+ 1 | d | (null)
+ 2 | d | (null)
+(2 rows)
+
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+ relation | mode
+---------------------------------------+--------------------------
+ dbms_stats.backup_history | RowExclusiveLock
+ dbms_stats.backup_history | ShareUpdateExclusiveLock
+ dbms_stats.backup_history_pkey | RowExclusiveLock
+ dbms_stats.column_stats_backup | RowExclusiveLock
+ dbms_stats.column_stats_backup | ShareUpdateExclusiveLock
+ dbms_stats.column_stats_backup_pkey | RowExclusiveLock
+ dbms_stats.relation_stats_backup | RowExclusiveLock
+ dbms_stats.relation_stats_backup | ShareUpdateExclusiveLock
+ dbms_stats.relation_stats_backup_pkey | RowExclusiveLock
+ (null) | ExclusiveLock
+ (null) | ExclusiveLock
+(11 rows)
+
+COMMIT;
+SELECT * FROM dbms_stats.backup_history;
+ id | time | unit | comment
+----+-------------------------------------+------+---------
+ 3 | Wed Feb 29 23:59:57.000001 2012 PST | t | (null)
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(6 rows)
+
+-- No.15-1-6
+SELECT id, unit, comment FROM dbms_stats.purge_stats(NULL);
+ERROR: backup id is required
+-- No.15-1-7
+SELECT id, unit, comment FROM dbms_stats.purge_stats(-1);
+ERROR: backup id -1 does not exist
+-- No.15-1-8
+SELECT id, unit, comment FROM dbms_stats.purge_stats(2, NULL);
+ERROR: force is not null
+-- No.15-1-4
+SELECT * FROM dbms_stats.backup_history;
+ id | time | unit | comment
+----+-------------------------------------+------+---------
+ 3 | Wed Feb 29 23:59:57.000001 2012 PST | t | (null)
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(6 rows)
+
+SELECT id, unit, comment FROM dbms_stats.purge_stats(3);
+ id | unit | comment
+----+------+---------
+ 3 | t | (null)
+(1 row)
+
+SELECT * FROM dbms_stats.backup_history;
+ id | time | unit | comment
+----+------------------------------+------+---------
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(5 rows)
+
+-- No.15-1-5
+SELECT * FROM dbms_stats.backup_history;
+ id | time | unit | comment
+----+------------------------------+------+---------
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(5 rows)
+
+SELECT id, unit, comment FROM dbms_stats.purge_stats(6);
+WARNING: at least one database-wise backup must be remain
+HINT: use true as 2nd parameter, if you want to purge forcibly
+ id | unit | comment
+----+------+---------
+(0 rows)
+
+SELECT * FROM dbms_stats.backup_history;
+ id | time | unit | comment
+----+------------------------------+------+---------
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(5 rows)
+
+-- No.15-1-2
+SELECT * FROM dbms_stats.backup_history;
+ id | time | unit | comment
+----+------------------------------+------+---------
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(5 rows)
+
+SELECT id, unit, comment FROM dbms_stats.purge_stats(8);
+WARNING: at least one database-wise backup must be remain
+HINT: use true as 2nd parameter, if you want to purge forcibly
+ id | unit | comment
+----+------+---------
+(0 rows)
+
+SELECT * FROM dbms_stats.backup_history;
+ id | time | unit | comment
+----+------------------------------+------+---------
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(5 rows)
+
+-- No.15-1-3
+SELECT * FROM dbms_stats.backup_history;
+ id | time | unit | comment
+----+------------------------------+------+---------
+ 4 | Wed Feb 29 23:59:58 2012 PST | d | (null)
+ 5 | Thu Mar 01 00:00:00 2012 PST | c | (null)
+ 6 | Thu Mar 01 00:00:02 2012 PST | t | (null)
+ 7 | Thu Mar 01 00:00:04 2012 PST | t | (null)
+ 8 | Thu Mar 01 00:00:06 2012 PST | s | (null)
+(5 rows)
+
+SELECT id, unit, comment FROM dbms_stats.purge_stats(8, true);
+ id | unit | comment
+----+------+---------
+ 4 | d | (null)
+ 5 | c | (null)
+ 6 | t | (null)
+ 7 | t | (null)
+ 8 | s | (null)
+(5 rows)
+
+SELECT * FROM dbms_stats.backup_history;
+ id | time | unit | comment
+----+------+------+---------
+(0 rows)
+
+/*
+ * create backup statistics state A
+ */
+DELETE FROM dbms_stats.backup_history;
+INSERT INTO dbms_stats.backup_history(id, time, unit)
+ VALUES (1, '2012-02-29 23:59:56.999999', 'd');
+SELECT setval('dbms_stats.backup_history_id_seq',1);
+ setval
+--------
+ 1
+(1 row)
+
+SELECT dbms_stats.backup();
+ backup
+--------
+ 2
+(1 row)
+
+UPDATE dbms_stats.backup_history
+ SET time = '2012-02-29 23:59:57'
+ WHERE id = 2;
+SELECT dbms_stats.backup('s0.st0');
+ backup
+--------
+ 3
+(1 row)
+
+UPDATE dbms_stats.backup_history
+ SET time = '2012-02-29 23:59:57.000001'
+ WHERE id = 3;
+SELECT dbms_stats.backup();
+ backup
+--------
+ 4
+(1 row)
+
+UPDATE dbms_stats.backup_history
+ SET time = '2012-02-29 23:59:58'
+ WHERE id = 4;
+DELETE FROM dbms_stats.relation_stats_backup
+ WHERE id = 4;
+SELECT dbms_stats.backup('s0.st0', 'id');
+ backup
+--------
+ 5
+(1 row)
+
+UPDATE dbms_stats.backup_history
+ SET time = '2012-03-01 00:00:00'
+ WHERE id = 5;
+SELECT dbms_stats.backup('s0.st0');
+ backup
+--------
+ 6
+(1 row)
+
+UPDATE dbms_stats.backup_history
+ SET time = '2012-03-01 00:00:02'
+ WHERE id = 6;
+SELECT dbms_stats.backup('public.st0');
+ backup
+--------
+ 7
+(1 row)
+
+UPDATE dbms_stats.backup_history
+ SET time = '2012-03-01 00:00:04'
+ WHERE id = 7;
+INSERT INTO dbms_stats.backup_history(time, unit)
+ VALUES ('2012-03-01 00:00:06', 's');
+SELECT dbms_stats.backup(8, c.oid, NULL)
+ FROM pg_catalog.pg_class c,
+ pg_catalog.pg_namespace n
+ WHERE n.nspname = 's0'
+ AND c.relnamespace = n.oid
+ AND c.relkind IN ('r', 'i');
+ backup
+--------
+ 8
+ 8
+ 8
+ 8
+ 8
+ 8
+(6 rows)
+
+/*
+ * restore test when only backup data does not exist 's0' schema
+ */
+DELETE FROM dbms_stats.column_stats_backup;
+DELETE FROM dbms_stats.relation_stats_backup
+ WHERE relname LIKE 's0.%';
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 9
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+ count
+-------
+ 0
+(1 row)
+
+-- No.10-2-8
+SELECT dbms_stats.restore_schema_stats('s0', '2012-03-01 00:00:04');
+ restore_schema_stats
+----------------------
+(0 rows)
+
+/*
+ * restore test when there are only backup hisotory
+ */
+DELETE FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+ count
+-------
+ 0
+(1 row)
+
+-- No.10-1-5
+SELECT dbms_stats.restore_database_stats('2012-02-29 23:59:58');
+ restore_database_stats
+------------------------
+(0 rows)
+
+-- No.10-2-5
+SELECT dbms_stats.restore_schema_stats('s0', '2012-02-29 23:59:58');
+ restore_schema_stats
+----------------------
+(0 rows)
+
+/*
+ * restore when Backup does not exist
+ */
+DELETE FROM dbms_stats.backup_history;
+SELECT count(*) FROM dbms_stats.backup_history;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+ count
+-------
+ 0
+(1 row)
+
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+ count
+-------
+ 0
+(1 row)
+
+-- No.10-1-4
+SELECT dbms_stats.restore_database_stats('2012-02-29 23:59:57');
+ restore_database_stats
+------------------------
+(0 rows)
+
+-- No.10-2-4
+SELECT dbms_stats.restore_schema_stats('s0', '2012-02-29 23:59:57');
+ restore_schema_stats
+----------------------
+(0 rows)
+
+-- No.10-3-4
+SELECT dbms_stats.restore_table_stats('s0.st0', '2012-02-29 23:59:57');
+NOTICE: arguments are s0.st0, Wed Feb 29 23:59:57 2012 PST
+ restore_table_stats
+---------------------
+ s0.st0
+(1 row)
+
+-- No.10-5-4
+SELECT dbms_stats.restore_column_stats('s0.st0', 'id', '2012-02-29 23:59:57');
+NOTICE: arguments are "<NULL>, s0.st0, id"
+CONTEXT: SQL function "restore_column_stats" statement 1
+ restore_column_stats
+----------------------
+(0 rows)
+
+/*
+ * Delete stab function dbms_stats.restore
+ */
+DROP FUNCTION dbms_stats.restore(int8, regclass, text);
+ALTER FUNCTION dbms_stats.truth_func_restore(int8, regclass, text)
+ RENAME TO restore;
+/*
+ * No.18-1 dummy statistics view for general users privileges.
+ */
+\c - regular_user
+-- No.18-1-1
+SELECT count(*) FROM dbms_stats.relation_stats_locked WHERE false;
+ count
+-------
+ 0
+(1 row)
+
+-- No.18-1-2
+SELECT count(*) FROM dbms_stats.column_stats_locked WHERE false;
+ count
+-------
+ 0
+(1 row)
+
+-- No.18-1-3
+SELECT count(*) FROM dbms_stats.stats WHERE false;
+ count
+-------
+ 0
+(1 row)
+
+-- No.18-1-4
+SELECT count(*) FROM dbms_stats._relation_stats_locked WHERE false;
+ERROR: permission denied for relation _relation_stats_locked
+-- No.18-1-5
+SELECT count(*) FROM dbms_stats._columnns_user WHERE false;
+ERROR: relation "dbms_stats._columnns_user" does not exist
+LINE 1: SELECT count(*) FROM dbms_stats._columnns_user WHERE false;
+ ^
+\c - postgres
+LOAD 'pg_dbms_stats';
--- /dev/null
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+
+COPY (SELECT n2.nspname,
+ cl.relname,
+ r.relpages,
+ r.reltuples,
+ r.curpages,
+ r.last_analyze,
+ r.last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ co.stainherit,
+ co.stanullfrac,
+ co.stawidth,
+ co.stadistinct,
+ co.stakind1,
+ co.stakind2,
+ co.stakind3,
+ co.stakind4,
+ co.staop1,
+ co.staop2,
+ co.staop3,
+ co.staop4,
+ co.stanumbers1,
+ co.stanumbers2,
+ co.stanumbers3,
+ co.stanumbers4,
+ co.stavalues1,
+ co.stavalues2,
+ co.stavalues3,
+ co.stavalues4
+ FROM dbms_stats.column_stats_effective co
+ JOIN pg_attribute a
+ ON (co.starelid = a.attrelid AND co.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN dbms_stats.relation_stats_effective r
+ ON co.starelid = r.relid
+ JOIN pg_catalog.pg_class cl
+ ON r.relid = cl.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON cl.relnamespace = n2.oid
+ -- WHERE n2.nspname = 'public'
+ -- AND cl.relname = 'test'
+ -- AND a.attname = 'id'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
--- /dev/null
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+
+COPY (SELECT n2.nspname,
+ cl.relname,
+ r.relpages,
+ r.reltuples,
+ r.relallvisible,
+ r.curpages,
+ r.last_analyze,
+ r.last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ co.stainherit,
+ co.stanullfrac,
+ co.stawidth,
+ co.stadistinct,
+ co.stakind1,
+ co.stakind2,
+ co.stakind3,
+ co.stakind4,
+ co.stakind5,
+ co.staop1,
+ co.staop2,
+ co.staop3,
+ co.staop4,
+ co.staop5,
+ co.stanumbers1,
+ co.stanumbers2,
+ co.stanumbers3,
+ co.stanumbers4,
+ co.stanumbers5,
+ co.stavalues1,
+ co.stavalues2,
+ co.stavalues3,
+ co.stavalues4,
+ co.stavalues5
+ FROM dbms_stats.column_stats_effective co
+ JOIN pg_attribute a
+ ON (co.starelid = a.attrelid AND co.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN dbms_stats.relation_stats_effective r
+ ON co.starelid = r.relid
+ JOIN pg_catalog.pg_class cl
+ ON r.relid = cl.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON cl.relnamespace = n2.oid
+ -- WHERE n2.nspname = 'public'
+ -- AND cl.relname = 'test'
+ -- AND a.attname = 'id'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
--- /dev/null
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+
+COPY (SELECT n2.nspname,
+ c.relname,
+ c.relpages,
+ c.reltuples,
+ (pg_relation_size(c.oid) / current_setting('block_size')::int4)::int4
+ AS curpages,
+ pg_catalog.pg_stat_get_last_analyze_time(c.oid)
+ AS last_analyze,
+ pg_catalog.pg_stat_get_last_autoanalyze_time(c.oid)
+ AS last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ s.stainherit,
+ s.stanullfrac,
+ s.stawidth,
+ s.stadistinct,
+ s.stakind1,
+ s.stakind2,
+ s.stakind3,
+ s.stakind4,
+ s.staop1,
+ s.staop2,
+ s.staop3,
+ s.staop4,
+ s.stanumbers1,
+ s.stanumbers2,
+ s.stanumbers3,
+ s.stanumbers4,
+ s.stavalues1,
+ s.stavalues2,
+ s.stavalues3,
+ s.stavalues4
+ FROM pg_statistic s
+ JOIN pg_attribute a
+ ON (s.starelid = a.attrelid AND s.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN pg_catalog.pg_class c
+ ON s.starelid = c.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON c.relnamespace = n2.oid
+ WHERE c.relkind IN ('r', 'i')
+ AND NOT n2.nspname IN ('pg_catalog',
+ 'pg_toast',
+ 'information_schema',
+ 'dbms_stats')
+ -- AND n2.nspname = 'public'
+ -- AND c.relname = 'test'
+ -- AND a.attname = 'id'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
--- /dev/null
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+
+COPY (SELECT n2.nspname,
+ c.relname,
+ c.relpages,
+ c.reltuples,
+ c.relallvisible,
+ (pg_relation_size(c.oid) / current_setting('block_size')::int4)::int4
+ AS curpages,
+ pg_catalog.pg_stat_get_last_analyze_time(c.oid)
+ AS last_analyze,
+ pg_catalog.pg_stat_get_last_autoanalyze_time(c.oid)
+ AS last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ s.stainherit,
+ s.stanullfrac,
+ s.stawidth,
+ s.stadistinct,
+ s.stakind1,
+ s.stakind2,
+ s.stakind3,
+ s.stakind4,
+ s.stakind5,
+ s.staop1,
+ s.staop2,
+ s.staop3,
+ s.staop4,
+ s.staop5,
+ s.stanumbers1,
+ s.stanumbers2,
+ s.stanumbers3,
+ s.stanumbers4,
+ s.stanumbers5,
+ s.stavalues1,
+ s.stavalues2,
+ s.stavalues3,
+ s.stavalues4,
+ s.stavalues5
+ FROM pg_statistic s
+ JOIN pg_attribute a
+ ON (s.starelid = a.attrelid AND s.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN pg_catalog.pg_class c
+ ON s.starelid = c.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON c.relnamespace = n2.oid
+ WHERE c.relkind IN ('r', 'i', 'f')
+ AND NOT n2.nspname IN ('pg_catalog',
+ 'pg_toast',
+ 'information_schema',
+ 'dbms_stats')
+ -- AND n2.nspname = 'public'
+ -- AND c.relname = 'test'
+ -- AND a.attname = 'id'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
--- /dev/null
+/*
+ * import.c
+ *
+ * Copyright (c) 2012, NIPPON TELEGRAPH AND TELEPHONE CORPORATION
+ */
+#include "postgres.h"
+
+#include "access/xact.h"
+#include "catalog/namespace.h"
+#include "catalog/pg_type.h"
+#include "commands/copy.h"
+#include "executor/spi.h"
+#include "libpq/pqformat.h"
+#include "mb/pg_wchar.h"
+#include "tcop/tcopprot.h"
+#include "utils/builtins.h"
+#include "utils/lsyscache.h"
+#include "utils/syscache.h"
+#if PG_VERSION_NUM >= 90200
+#include "catalog/pg_class.h"
+#endif
+
+#include "pg_dbms_stats.h"
+
+#if PG_VERSION_NUM >= 90200
+#define RELATION_PARAM_NUM 9
+#else
+#define RELATION_PARAM_NUM 8
+#endif
+
+extern PGDLLIMPORT bool standard_conforming_strings;
+
+PG_FUNCTION_INFO_V1(dbms_stats_import);
+
+Datum dbms_stats_import(PG_FUNCTION_ARGS);
+
+static void get_args(FunctionCallInfo fcinfo, char **nspname, char **relname,
+ char **attname, char **filename);
+static void spi_exec_utility(const char *query);
+static void spi_exec_query(const char *query, int nargs, Oid *argtypes,
+ SPIPlanPtr *plan, Datum *values, const char *nulls, int result);
+static void import_stats_from_file(char *filename, char *nspname, char *relname,
+ char *attname);
+
+/*
+ * dbms_stats_import
+ * Import exported statistics from stdin or a file.
+ *
+ * Order of arguments:
+ * 1) schema name
+ * 2) relation oid
+ * 3) attribute name
+ * 4) absolute path of source file, or 'stdin' (case insensitive)
+ */
+Datum
+dbms_stats_import(PG_FUNCTION_ARGS)
+{
+ char *nspname;
+ char *relname;
+ char *attname;
+ char *filename; /* filename, or NULL for STDIN */
+ int ret;
+ int i;
+ uint32 r_num;
+ HeapTuple *r_tups;
+ TupleDesc r_tupdesc;
+ SPIPlanPtr r_upd_plan = NULL;
+ SPIPlanPtr r_ins_plan = NULL;
+ SPIPlanPtr c_sel_plan = NULL;
+ SPIPlanPtr c_del_plan = NULL;
+ SPIPlanPtr c_ins_plan = NULL;
+
+ /* get validated arguments */
+ get_args(fcinfo, &nspname, &relname, &attname, &filename);
+
+ /* for debug use */
+ elog(DEBUG3, "%s() f=%s n=%s r=%s a=%s", __FUNCTION__,
+ filename ? filename : "(null)",
+ nspname ? nspname : "(null)",
+ relname ? relname : "(null)",
+ attname ? attname : "(null)");
+
+ /* connect to SPI */
+ ret = SPI_connect();
+ if (ret != SPI_OK_CONNECT)
+ elog(ERROR, "pg_dbms_stats: SPI_connect => %d", ret);
+
+ /* lock dummy statistics tables. */
+ spi_exec_utility("LOCK dbms_stats._relation_stats_locked"
+ " IN SHARE UPDATE EXCLUSIVE MODE");
+ spi_exec_utility("LOCK dbms_stats._column_stats_locked"
+ " IN SHARE UPDATE EXCLUSIVE MODE");
+
+ /*
+ * Create a temp table to save the statistics to import.
+ * This table should fit with the content of export files.
+ */
+ spi_exec_utility("CREATE TEMP TABLE dbms_stats_work_stats ("
+ "nspname name NOT NULL,"
+ "relname name NOT NULL,"
+ "relpages int4 NOT NULL,"
+ "reltuples float4 NOT NULL,"
+#if PG_VERSION_NUM >= 90200
+ "relallvisible int4 NOT NULL,"
+#endif
+ "curpages int4 NOT NULL,"
+ "last_analyze timestamp with time zone,"
+ "last_autoanalyze timestamp with time zone,"
+ "attname name,"
+ "nspname_of_typename name,"
+ "typname name,"
+ "atttypmod int4,"
+ "stainherit bool,"
+ "stanullfrac float4,"
+ "stawidth int4,"
+ "stadistinct float4,"
+ "stakind1 int2,"
+ "stakind2 int2,"
+ "stakind3 int2,"
+ "stakind4 int2,"
+#if PG_VERSION_NUM >= 90200
+ "stakind5 int2,"
+#endif
+ "staop1 oid,"
+ "staop2 oid,"
+ "staop3 oid,"
+ "staop4 oid,"
+#if PG_VERSION_NUM >= 90200
+ "staop5 oid,"
+#endif
+ "stanumbers1 float4[],"
+ "stanumbers2 float4[],"
+ "stanumbers3 float4[],"
+ "stanumbers4 float4[],"
+#if PG_VERSION_NUM >= 90200
+ "stanumbers5 float4[],"
+#endif
+ "stavalues1 dbms_stats.anyarray,"
+ "stavalues2 dbms_stats.anyarray,"
+ "stavalues3 dbms_stats.anyarray,"
+ "stavalues4 dbms_stats.anyarray"
+#if PG_VERSION_NUM >= 90200
+ ",stavalues5 dbms_stats.anyarray"
+#endif
+ ")");
+
+ /* load the statistics from export file to the temp table */
+ import_stats_from_file(filename, nspname, relname, attname);
+
+ /* Determine the Oid of local table from the tablename and schemaname. */
+ /* TODO 可視ページ数に対応する */
+ ret = SPI_execute("SELECT DISTINCT w.nspname, w.relname, c.oid, "
+ "w.relpages, w.reltuples, "
+ "w.curpages, w.last_analyze, w.last_autoanalyze "
+#if PG_VERSION_NUM >= 90200
+ ",w.relallvisible "
+#endif
+ "FROM pg_catalog.pg_class c "
+ "JOIN pg_catalog.pg_namespace n "
+ "ON (c.relnamespace = n.oid) "
+ "RIGHT JOIN dbms_stats_work_stats w "
+ "ON (w.relname = c.relname AND w.nspname = n.nspname) "
+ "ORDER BY 1, 2", false, 0);
+ if (ret != SPI_OK_SELECT)
+ elog(ERROR, "pg_dbms_stats: SPI_execute => %d", ret);
+
+ /*
+ * If there is no record in the staging table after loading source and
+ * deleting unnecessary records, we treat it as an error.
+ */
+ if (SPI_processed == 0)
+ elog(ERROR, "no per-table statistic data to be imported");
+
+ /* */
+ r_num = SPI_processed;
+ r_tups = SPI_tuptable->vals;
+ r_tupdesc = SPI_tuptable->tupdesc;
+ for (i = 0; i < r_num; i++)
+ {
+ bool isnull;
+ Datum w_nspname;
+ Datum w_relname;
+ Datum w_relid;
+ Datum values[9];
+ char nulls[9] = {'t', 't', 't', 't', 't', 't', 't', 't', 't'};
+ Oid r_types[9] = {NAMEOID, NAMEOID, INT4OID, FLOAT4OID, INT4OID,
+ TIMESTAMPTZOID, TIMESTAMPTZOID, OIDOID, INT4OID};
+ Oid c_types[5] = {OIDOID, INT2OID, NAMEOID, NAMEOID,
+ NAMEOID};
+ uint32 c_num;
+ TupleDesc c_tupdesc;
+ HeapTuple *c_tups;
+ int j;
+
+ values[0] = w_nspname = SPI_getbinval(r_tups[i], r_tupdesc, 1, &isnull);
+ values[1] = w_relname = SPI_getbinval(r_tups[i], r_tupdesc, 2, &isnull);
+ values[7] = w_relid = SPI_getbinval(r_tups[i], r_tupdesc, 3, &isnull);
+ if (isnull)
+ {
+ elog(WARNING, "relation \"%s.%s\" does not exist",
+ DatumGetName(w_nspname)->data,
+ DatumGetName(w_relname)->data);
+ continue;
+ }
+
+ values[2] = SPI_getbinval(r_tups[i], r_tupdesc, 4, &isnull);
+ values[3] = SPI_getbinval(r_tups[i], r_tupdesc, 5, &isnull);
+ values[4] = SPI_getbinval(r_tups[i], r_tupdesc, 6, &isnull);
+ values[5] = SPI_getbinval(r_tups[i], r_tupdesc, 7, &isnull);
+ nulls[5] = isnull ? 'n' : 't';
+ values[6] = SPI_getbinval(r_tups[i], r_tupdesc, 8, &isnull);
+ nulls[6] = isnull ? 'n' : 't';
+ values[8] = SPI_getbinval(r_tups[i], r_tupdesc, 9, &isnull);
+
+ /*
+ * First we try UPDATE with the oid. When no record matched, try
+ * INSERT. We can't use DELETE-then-INSERT method because we have FK
+ * on _relation_stats_locked so DELETE would delete child records in
+ * _column_stats_locked undesirably.
+ */
+ spi_exec_query("UPDATE dbms_stats._relation_stats_locked SET "
+ "relname = quote_ident($1) || '.' || quote_ident($2), "
+ "relpages = $3, reltuples = $4, "
+#if PG_VERSION_NUM >= 90200
+ "relallvisible = $9, "
+#endif
+ "curpages = $5, last_analyze = $6, last_autoanalyze = $7 "
+ "WHERE relid = $8",
+ RELATION_PARAM_NUM, r_types, &r_upd_plan, values, nulls,
+ SPI_OK_UPDATE);
+ if (SPI_processed == 0)
+ {
+ spi_exec_query("INSERT INTO dbms_stats._relation_stats_locked "
+ "(relname, relpages, reltuples, curpages, "
+ "last_analyze, last_autoanalyze, relid"
+#if PG_VERSION_NUM >= 90200
+ ", relallvisible"
+#endif
+ ") VALUES (quote_ident($1) || '.' || quote_ident($2), "
+ "$3, $4, $5, $6, $7, $8"
+#if PG_VERSION_NUM >= 90200
+ ", $9"
+#endif
+ ")",
+ RELATION_PARAM_NUM, r_types, &r_ins_plan, values, nulls,
+ SPI_OK_INSERT);
+ /* If we failed to insert, we can't proceed. */
+ if (SPI_processed != 1)
+ elog(ERROR, "failed to insert import data");
+ }
+
+ elog(DEBUG2, "\"%s.%s\" relation statistic import",
+ DatumGetName(w_nspname)->data, DatumGetName(w_relname)->data);
+
+ /*
+ * Determine the attnum of the attribute with given name, and load
+ * statistics from temp table into dbms._column_stats_locked.
+ */
+ spi_exec_query("SELECT w.stainherit, w.attname, a.attnum, "
+ "w.nspname_of_typename, tn.nspname, "
+ "w.typname, t.typname, w.atttypmod, a.atttypmod "
+ "FROM pg_catalog.pg_class c "
+ "JOIN pg_catalog.pg_namespace cn "
+ "ON (cn.oid = c.relnamespace) "
+ "JOIN pg_catalog.pg_attribute a "
+ "ON (a.attrelid = c.oid) "
+ "JOIN pg_catalog.pg_type t "
+ "ON (t.oid = a.atttypid) "
+ "JOIN pg_catalog.pg_namespace tn "
+ "ON (tn.oid = t.typnamespace) "
+ "RIGHT JOIN dbms_stats_work_stats w "
+ "ON (w.nspname = cn.nspname AND w.relname = c.relname "
+ "AND (w.attname = a.attname OR w.attname = '')) "
+ "WHERE w.nspname = $1 AND w.relname = $2 "
+ "AND a.attnum > 0"
+ "ORDER BY 1, 3, 2",
+ 2, r_types, &c_sel_plan, values, NULL, SPI_OK_SELECT);
+
+ /* This query ought to return at least one record. */
+ if (SPI_processed == 0)
+ elog(ERROR, "no per-column statistic data to be imported");
+
+ values[0] = w_relid;
+ values[2] = w_nspname;
+ values[3] = w_relname;
+
+ c_num = SPI_processed;
+ c_tups = SPI_tuptable->vals;
+ c_tupdesc = SPI_tuptable->tupdesc;
+ for (j = 0; j < c_num; j++)
+ {
+ char *w_typnamespace;
+ char *a_typnamespace;
+ char *w_typname;
+ char *a_typname;
+ int w_typmod;
+ int a_typmod;
+
+ /*
+ * If we have only per-relation statistics in source, all of
+ * column_stats_effective for per-column statistics are NULL.
+ */
+ (void) SPI_getbinval(c_tups[j], c_tupdesc, 1, &isnull);
+ if (isnull)
+ continue;
+
+ /*
+ * If there is no column with given name, we skip the rest of
+ * import process.
+ */
+ values[4] = SPI_getbinval(c_tups[j], c_tupdesc, 2, &isnull);
+ values[1] = SPI_getbinval(c_tups[j], c_tupdesc, 3, &isnull);
+ if (isnull)
+ {
+ elog(WARNING, "column \"%s\" of \"%s.%s\" does not exist",
+ DatumGetName(values[4])->data,
+ DatumGetName(w_nspname)->data,
+ DatumGetName(w_relname)->data);
+ continue;
+ }
+
+ /*
+ * If the destination column has different data type from source
+ * column, we stop importing to avoid corrupted statistics.
+ */
+ w_typnamespace = DatumGetName(SPI_getbinval(c_tups[j], c_tupdesc, 4,
+ &isnull))->data;
+ a_typnamespace = DatumGetName(SPI_getbinval(c_tups[j], c_tupdesc, 5,
+ &isnull))->data;
+ w_typname = DatumGetName(SPI_getbinval(c_tups[j], c_tupdesc, 6,
+ &isnull))->data;
+ a_typname = DatumGetName(SPI_getbinval(c_tups[j], c_tupdesc, 7,
+ &isnull))->data;
+ if (strcmp(w_typnamespace, a_typnamespace) != 0 ||
+ strcmp(w_typname, a_typname) != 0)
+ {
+ ereport(WARNING,
+ (errcode(ERRCODE_DATATYPE_MISMATCH),
+ errmsg("column \"%s\" is of type \"%s.%s\""
+ " but import data is of type \"%s.%s\"",
+ DatumGetName(values[4])->data,
+ a_typnamespace, a_typname,
+ w_typnamespace, w_typname)));
+ continue;
+ }
+
+ /*
+ * If the atttypmod of the destination column is different from the
+ * one of source, column, we stop importing to avoid corrupted
+ * statistics.
+ */
+ w_typmod = DatumGetInt32(SPI_getbinval(c_tups[j], c_tupdesc, 8,
+ &isnull));
+ a_typmod = DatumGetInt32(SPI_getbinval(c_tups[j], c_tupdesc, 9,
+ &isnull));
+ if (w_typmod != a_typmod)
+ {
+ ereport(WARNING,
+ (errcode(ERRCODE_DATATYPE_MISMATCH),
+ errmsg("column \"%s\" is of atttypmod %d"
+ " but import data is of atttypmod %d",
+ DatumGetName(values[4])->data,
+ a_typmod, a_typmod)));
+ continue;
+ }
+
+ /*
+ * First delete old dummy statistics, and import new one. We use
+ * DELETE-then-INSERT method here to simplify codes.
+ */
+ spi_exec_query("DELETE FROM dbms_stats._column_stats_locked "
+ "WHERE starelid = $1 AND staattnum = $2", 2, c_types,
+ &c_del_plan, values, NULL, SPI_OK_DELETE);
+
+ spi_exec_query("INSERT INTO dbms_stats._column_stats_locked "
+ "SELECT $1, $2, "
+ "stainherit, stanullfrac, stawidth, stadistinct, "
+ "stakind1, stakind2, stakind3, stakind4, "
+#if PG_VERSION_NUM >= 90200
+ "stakind5, "
+#endif
+ "staop1, staop2, staop3, staop4, "
+#if PG_VERSION_NUM >= 90200
+ "staop5, "
+#endif
+ "stanumbers1, stanumbers2, stanumbers3, stanumbers4, "
+#if PG_VERSION_NUM >= 90200
+ "stanumbers5, "
+#endif
+ "stavalues1, stavalues2, stavalues3, stavalues4 "
+#if PG_VERSION_NUM >= 90200
+ ", stavalues5 "
+#endif
+ "FROM dbms_stats_work_stats "
+ "WHERE nspname = $3 AND relname = $4 "
+ "AND attname = $5 "
+ "ORDER BY 3",
+ 5, c_types, &c_ins_plan, values, NULL, SPI_OK_INSERT);
+
+ elog(DEBUG2, "\"%s.%s.%s\" column statistic import",
+ DatumGetName(w_nspname)->data,
+ DatumGetName(w_relname)->data, DatumGetName(values[4])->data);
+ }
+
+ if (c_num == 0)
+ elog(DEBUG2, "\"%s.%s\" column statistic no data",
+ DatumGetName(w_nspname)->data, DatumGetName(w_relname)->data);
+ }
+
+ /* release the cached plan */
+ SPI_freeplan(r_upd_plan);
+ SPI_freeplan(r_ins_plan);
+ SPI_freeplan(c_sel_plan);
+ SPI_freeplan(c_del_plan);
+ SPI_freeplan(c_ins_plan);
+
+ /* delete the temp table */
+ spi_exec_utility("DROP TABLE dbms_stats_work_stats");
+
+ /* disconnect SPI */
+ ret = SPI_finish();
+ if (ret != SPI_OK_FINISH)
+ elog(ERROR, "pg_dbms_stats: SPI_finish => %d", ret);
+
+ /*
+ * Recover the protocol state because it has been invalidated by our
+ * COPY-from-stdin.
+ */
+ if (filename == NULL)
+ pq_puttextmessage('C', "dbms_stats_import");
+
+ PG_RETURN_VOID();
+}
+
+/*
+ * spi_exec_utility
+ * Execute given utility command via SPI.
+ */
+static void
+spi_exec_utility(const char *query)
+{
+ int ret;
+
+ ret = SPI_exec(query, 0);
+ if (ret != SPI_OK_UTILITY)
+ elog(ERROR, "pg_dbms_stats: SPI_exec => %d", ret);
+}
+
+/*
+ * spi_exec_query
+ * Execute given SQL command via SPI.
+ * The plan will be cached by SPI_prepare if it hasn't been.
+ */
+static void
+spi_exec_query(const char *query, int nargs, Oid *argtypes, SPIPlanPtr *plan,
+ Datum *values, const char *nulls, int result)
+{
+ int ret;
+
+ if (*plan == NULL)
+ *plan = SPI_prepare(query, nargs, argtypes);
+
+ ret = SPI_execute_plan(*plan, values, nulls, false, 0);
+ if (ret != result)
+ elog(ERROR, "pg_dbms_stats: SPI_execute_plan => %d", ret);
+}
+
+static char *
+get_text_arg(FunctionCallInfo fcinfo, int n, bool is_name)
+{
+ text *arg;
+ char *s;
+ int len;
+ char *result;
+
+ arg = PG_GETARG_TEXT_PP(n);
+ s = text_to_cstring(arg);
+ PG_FREE_IF_COPY(arg, n);
+
+ if (!is_name)
+ return s;
+
+ len = strlen(s);
+
+ /* Truncate oversize input */
+ if (len >= NAMEDATALEN)
+ len = pg_mbcliplen(s, len, NAMEDATALEN - 1);
+
+ /* We use palloc0 here to ensure result is zero-padded */
+ result = (char *) palloc0(NAMEDATALEN);
+ memcpy(result, s, len);
+ pfree(s);
+
+ return result;
+}
+
+/*
+ * get_args
+ * Retrieve arguments from FunctionCallInfo and validate them. We assume
+ * that order of arguments is:
+ * 1) schema name
+ * 2) relation oid
+ * 3) attribute name
+ * 4) absolute path of source file, or 'stdin' (case insensitive)
+ */
+static void
+get_args(FunctionCallInfo fcinfo, char **nspname, char **relname,
+ char **attname, char **filename)
+{
+ Oid nspid;
+ Oid relid;
+ AttrNumber attnum;
+ HeapTuple tp;
+ Form_pg_class reltup;
+ char relkind;
+
+ *nspname = *relname = *attname = *filename = NULL;
+
+ /*
+ * First of all, check whether combination of arguments is consistent.
+ *
+ * 1) relid and attname can't be used with schemaname.
+ * 2) relid is required when attname is given.
+ */
+ if (!PG_ARGISNULL(0) && (!PG_ARGISNULL(1) || !PG_ARGISNULL(2)))
+ elog(ERROR, "relid and attnum can not be used with schemaname");
+ else if (PG_ARGISNULL(1) && !PG_ARGISNULL(2))
+ elog(ERROR, "relation is required");
+
+ /* filepath validation */
+ if (!PG_ARGISNULL(3))
+ {
+ *filename = get_text_arg(fcinfo, 3, false);
+
+ /*
+ * If given filepath is "stdin", clear filename to tell caller to
+ * import from standard input. Note that we accept only absolute path
+ * for security reason.
+ */
+ if (pg_strcasecmp(*filename, "stdin") == 0)
+ *filename = NULL;
+ else if (!is_absolute_path(*filename))
+ ereport(ERROR,
+ (errcode(ERRCODE_INVALID_NAME),
+ errmsg("relative path not allowed for dbms_stats_export"
+ " to file")));
+ }
+
+ /* schemaname validation */
+ if (!PG_ARGISNULL(0))
+ {
+ *nspname = get_text_arg(fcinfo, 0, true);
+
+ /* check that a schema with given name exists */
+ get_namespace_oid(*nspname, false);
+
+ /* check that given schema is not one of system schemas */
+ if (dbms_stats_is_system_schema_internal(*nspname))
+ elog(ERROR, "\"%s\" is a system catalog", *nspname);
+ }
+
+ /* table oid validation */
+ if (!PG_ARGISNULL(1))
+ {
+ relid = PG_GETARG_OID(1);
+ tp = SearchSysCache1(RELOID, ObjectIdGetDatum(relid));
+ if (!HeapTupleIsValid(tp))
+ elog(ERROR, "relid %d does not exist", relid);
+
+ /* check that the target is an ordinary table or an index */
+ reltup = (Form_pg_class) GETSTRUCT(tp);
+ *relname = pstrdup(reltup->relname.data);
+ relkind = reltup->relkind;
+ nspid = reltup->relnamespace;
+ ReleaseSysCache(tp);
+
+ if (relkind != RELKIND_RELATION && relkind != RELKIND_INDEX
+#if PG_VERSION_NUM >= 90200
+ && relkind != RELKIND_FOREIGN_TABLE
+#endif
+ )
+ elog(ERROR, "relkind of \"%s\" is \"%c\", can not import",
+ get_rel_name(relid), relkind);
+
+ /* check that the relation is not in one of system schemas */
+ *nspname = get_namespace_name(nspid);
+ if (dbms_stats_is_system_schema_internal(*nspname))
+ elog(ERROR, "\"%s\" is a system catalog", *nspname);
+
+ /* attribute name validation */
+ if (!PG_ARGISNULL(2))
+ {
+ *attname = get_text_arg(fcinfo, 2, true);
+ attnum = get_attnum(relid, *attname);
+ if (!AttributeNumberIsValid(attnum))
+ elog(ERROR, "column \"%s\" of \"%s.%s\" does not exist", *attname, *nspname, *relname);
+ }
+ }
+}
+
+/*
+ * appendLiteral - Format a string as a SQL literal, append to buf
+ *
+ * This function was copied from simple_quote_literal() in
+ * src/backend/utils/adt/ruleutils.c
+ */
+static void
+appendLiteral(StringInfo buf, const char *val)
+{
+ const char *valptr;
+
+ /*
+ * We form the string literal according to the prevailing setting of
+ * standard_conforming_strings; we never use E''. User is responsible for
+ * making sure result is used correctly.
+ */
+ appendStringInfoChar(buf, '\'');
+ for (valptr = val; *valptr; valptr++)
+ {
+ char ch = *valptr;
+
+ if (SQL_STR_DOUBLE(ch, !standard_conforming_strings))
+ appendStringInfoChar(buf, ch);
+ appendStringInfoChar(buf, ch);
+ }
+ appendStringInfoChar(buf, '\'');
+}
+
+/*
+ * import_stats_from_file
+ * load data from file or stdin into work table, and delete unnecessary
+ * records.
+ */
+static void
+import_stats_from_file(char *filename, char *nspname, char *relname,
+ char *attname)
+{
+ StringInfoData buf;
+ List *parsetree_list;
+ uint64 processed;
+ Datum values[3];
+ Oid argtypes[3] = { CSTRINGOID, CSTRINGOID, CSTRINGOID };
+ char nulls[3] = { 'n', 'n', 'n' };
+ int nargs;
+ int ret;
+
+ /* for debug use */
+ elog(DEBUG3, "%s() f=%s n=%s r=%s a=%s", __FUNCTION__,
+ filename ? filename : "(null)",
+ nspname ? nspname : "(null)",
+ relname ? relname : "(null)",
+ attname ? attname : "(null)");
+
+ /*
+ * Construct COPY statement. NULL for filename indicates that source is
+ * stdin.
+ */
+ initStringInfo(&buf);
+ appendStringInfoString(&buf, "COPY dbms_stats_work_stats FROM ");
+ if (filename == NULL)
+ appendStringInfoString(&buf, "stdin");
+ else
+ appendLiteral(&buf, filename);
+
+ appendStringInfoString(&buf, " (FORMAT 'binary')");
+
+ /* Execute COPY FROM command. */
+ parsetree_list = pg_parse_query(buf.data);
+ processed = DoCopy((CopyStmt *)linitial(parsetree_list), buf.data);
+
+ if (processed == 0)
+ elog(ERROR, "no data to be imported");
+
+ /*
+ * Delete the statistics other than the specified object's statistic from
+ * the temp table. We can skip DELETEing staging data when schemaname is
+ * NULL, because it means database-wise import.
+ */
+ if (nspname == NULL)
+ return;
+
+ resetStringInfo(&buf);
+ appendStringInfoString(&buf,
+ "DELETE FROM dbms_stats_work_stats "
+ " WHERE nspname <> $1::text ");
+ values[0] = CStringGetDatum(nspname);
+ nulls[0] = 't';
+ nargs = 1;
+
+ if (relname != NULL)
+ {
+ values[1] = CStringGetDatum(relname);
+ nulls[1] = 't';
+ nargs++;
+ appendStringInfoString(&buf, " OR (relname <> $2::text) ");
+
+ if (attname != NULL)
+ {
+ values[2] = CStringGetDatum(attname);
+ nulls[2] = 't';
+ nargs++;
+ appendStringInfoString(&buf, " OR (attname <> $3::text) ");
+ }
+ }
+
+ ret = SPI_execute_with_args(buf.data, nargs, argtypes, values, nulls,
+ false, 0);
+ if (ret != SPI_OK_DELETE)
+ elog(ERROR, "pg_dbms_stats: SPI_execute_with_args => %d", ret);
+}
+
+#ifdef UNIT_TEST
+void test_import(int *passed, int *total);
+static void test_spi_exec_query(int *passed, int *total);
+static void test_spi_exec_utility(int *passed, int *total);
+static void test_appendLiteral(int *passed, int *total);
+
+#define StringEq(actual, expected) \
+ (strcmp((actual), (expected)) == 0 ? 1 : \
+ (elog(WARNING, "%s-%d failed: [%s]", \
+ __FUNCTION__, caseno, (actual)), 0))
+
+/*
+ * Test appendLiteral function
+ */
+static void
+test_appendLiteral(int *passed, int *total)
+{
+ bool org_standard_conforming_strings;
+ int caseno = 0;
+ StringInfoData buf;
+
+ /* Backup current GUC parameters */
+ NewGUCNestLevel();
+ org_standard_conforming_strings = standard_conforming_strings;
+
+ /* Initialize resources for tests */
+ initStringInfo(&buf);
+
+ /*
+ * *-*-1:
+ * - no special char
+ */
+ caseno++;
+ resetStringInfo(&buf);
+ appendStringInfoString(&buf, "BEFORE");
+ appendLiteral(&buf, "\"abc 123\tあいう\n\"");
+ if (StringEq(buf.data, "BEFORE'\"abc 123\tあいう\n\"'"))
+ {
+ elog(WARNING, "%s-%d ok", __FUNCTION__, caseno);
+ (*passed)++;
+ }
+
+ /*
+ * *-*-2:
+ * - contains special chars (single quote, back slash),
+ * - standard_conforming_strings is true
+ */
+ caseno++;
+ resetStringInfo(&buf);
+ appendStringInfoString(&buf, "BEFORE");
+ standard_conforming_strings = true;
+ appendLiteral(&buf, "'abc 123\tあいう\n\\");
+ if (StringEq(buf.data, "BEFORE'''abc 123\tあいう\n\\'"))
+ {
+ elog(WARNING, "%s-%d ok", __FUNCTION__, caseno);
+ (*passed)++;
+ }
+
+ /*
+ * *-*-3:
+ * - contains special chars (single quote, back slash),
+ * - standard_conforming_strings is false
+ */
+ caseno++;
+ resetStringInfo(&buf);
+ appendStringInfoString(&buf, "BEFORE");
+ standard_conforming_strings = false;
+ appendLiteral(&buf, "'abc 123\tあいう\n\\");
+ if (StringEq(buf.data, "BEFORE'''abc 123\tあいう\n\\\\'"))
+ {
+ elog(WARNING, "%s-%d ok", __FUNCTION__, caseno);
+ (*passed)++;
+ }
+
+ /*
+ * *-*-4:
+ * - empty string
+ */
+ caseno++;
+ resetStringInfo(&buf);
+ appendStringInfoString(&buf, "BEFORE");
+ appendLiteral(&buf, "");
+ if (StringEq(buf.data, "BEFORE''"))
+ {
+ elog(WARNING, "%s-%d ok", __FUNCTION__, caseno);
+ (*passed)++;
+ }
+
+ /* report # of tests */
+ *total += caseno;
+
+ /* Restore GUC parameters */
+ standard_conforming_strings = org_standard_conforming_strings;
+}
+
+static void
+test_spi_exec_query(int *passed, int *total)
+{
+ int rc;
+ volatile int caseno = 0;
+ SPIPlanPtr ptr = NULL;
+ SPIPlanPtr org_ptr;
+
+ /* Initialize */
+ rc = SPI_connect();
+ if (rc != SPI_OK_CONNECT)
+ elog(ERROR, "could not connect SPI: %s", SPI_result_code_string(rc));
+
+ /*
+ * *-*-1
+ * - plan is not cached
+ */
+ caseno++;
+ BeginInternalSubTransaction("test");
+ PG_TRY();
+ {
+ spi_exec_query("SELECT 1", 0, NULL, &ptr, NULL, NULL, SPI_OK_SELECT);
+ if (ptr != NULL && SPI_processed == 1)
+ {
+ elog(WARNING, "%s-%d ok", __FUNCTION__, caseno);
+ (*passed)++;
+ }
+ ReleaseCurrentSubTransaction();
+ }
+ PG_CATCH();
+ {
+ elog(WARNING, "*-*-%d failed", caseno);
+ RollbackAndReleaseCurrentSubTransaction();
+ SPI_restore_connection();
+ }
+ PG_END_TRY();
+
+ /*
+ * *-*-2
+ * - plan is cached
+ */
+ caseno++;
+ BeginInternalSubTransaction("test");
+ PG_TRY();
+ {
+ org_ptr = ptr;
+ spi_exec_query(NULL, 0, NULL, &ptr, NULL, NULL, SPI_OK_SELECT);
+ if (ptr == org_ptr && SPI_processed == 1)
+ {
+ elog(WARNING, "%s-%d ok", __FUNCTION__, caseno);
+ (*passed)++;
+ }
+ ReleaseCurrentSubTransaction();
+ }
+ PG_CATCH();
+ {
+ elog(WARNING, "*-*-%d failed", caseno);
+ RollbackAndReleaseCurrentSubTransaction();
+ FlushErrorState();
+ SPI_restore_connection();
+ }
+ PG_END_TRY();
+ SPI_freeplan(ptr);
+ ptr = NULL;
+
+ /*
+ * *-*-3
+ * - query error
+ */
+ caseno++;
+ BeginInternalSubTransaction("test");
+ PG_TRY();
+ {
+ spi_exec_query("SELECT 1 / 0",
+ 0, NULL, &ptr, NULL, NULL, SPI_OK_SELECT);
+ elog(WARNING, "*-*-%d failed", caseno);
+ ReleaseCurrentSubTransaction();
+ }
+ PG_CATCH();
+ {
+ elog(WARNING, "%s-%d ok", __FUNCTION__, caseno);
+ (*passed)++;
+ RollbackAndReleaseCurrentSubTransaction();
+ FlushErrorState();
+ SPI_restore_connection();
+ }
+ PG_END_TRY();
+ SPI_freeplan(ptr);
+ ptr = NULL;
+
+ /*
+ * *-*-4
+ * - query success
+ */
+ caseno++;
+ BeginInternalSubTransaction("test");
+ PG_TRY();
+ {
+ spi_exec_query("SELECT 1", 0, NULL, &ptr, NULL, NULL, SPI_OK_SELECT);
+ if (ptr != NULL && SPI_processed == 1)
+ {
+ elog(WARNING, "%s-%d ok", __FUNCTION__, caseno);
+ (*passed)++;
+ }
+ ReleaseCurrentSubTransaction();
+ }
+ PG_CATCH();
+ {
+ elog(WARNING, "*-*-%d failed", caseno);
+ PG_RE_THROW();
+ RollbackAndReleaseCurrentSubTransaction();
+ SPI_restore_connection();
+ }
+ PG_END_TRY();
+ SPI_freeplan(ptr);
+ ptr = NULL;
+
+ /* report # of tests */
+ (*total) += caseno;
+
+ /* Cleanup */
+ rc = SPI_finish();
+ if (rc != SPI_OK_FINISH && rc != SPI_ERROR_UNCONNECTED)
+ elog(ERROR, "could not finish SPI: %s", SPI_result_code_string(rc));
+}
+
+static void
+test_spi_exec_utility(int *passed, int *total)
+{
+ int rc;
+ volatile int caseno = 0;
+
+ /* Initialize */
+ rc = SPI_connect();
+ if (rc != SPI_OK_CONNECT)
+ elog(ERROR, "could not connect SPI: %s", SPI_result_code_string(rc));
+
+ /*
+ * *-*-1
+ * - query error
+ */
+ caseno++;
+ BeginInternalSubTransaction("test");
+ PG_TRY();
+ {
+ spi_exec_utility("RESET dummy_parameter");
+ elog(WARNING, "*-*-%d failed", caseno);
+ ReleaseCurrentSubTransaction();
+ }
+ PG_CATCH();
+ {
+ elog(WARNING, "%s-%d ok", __FUNCTION__, caseno);
+ (*passed)++;
+ RollbackAndReleaseCurrentSubTransaction();
+ FlushErrorState();
+ SPI_restore_connection();
+ }
+ PG_END_TRY();
+
+ /*
+ * *-*-2
+ * - query success
+ */
+ caseno++;
+ BeginInternalSubTransaction("test");
+ PG_TRY();
+ {
+ spi_exec_utility("RESET client_min_messages");
+ elog(WARNING, "%s-%d ok", __FUNCTION__, caseno);
+ (*passed)++;
+ ReleaseCurrentSubTransaction();
+ }
+ PG_CATCH();
+ {
+ elog(WARNING, "*-*-%d failed", caseno);
+ RollbackAndReleaseCurrentSubTransaction();
+ SPI_restore_connection();
+ }
+ PG_END_TRY();
+
+ /* report # of tests */
+ (*total) += caseno;
+
+ /* Cleanup */
+ rc = SPI_finish();
+ if (rc != SPI_OK_FINISH && rc != SPI_ERROR_UNCONNECTED)
+ elog(ERROR, "could not finish SPI: %s", SPI_result_code_string(rc));
+}
+
+/*
+ * Unit test entry point for import.c. This will be called by PG_init()
+ * function, after initialization for this extension is completed .
+ * This funciton should add the numbers of tests passed and the total number of
+ * tests to parameter passed and total respectively.
+ */
+void
+test_import(int *passed, int *total)
+{
+ int local_passed = 0;
+ int local_total = 0;
+
+ elog(WARNING, "==========");
+
+ /* Do tests here */
+ test_appendLiteral(&local_passed, &local_total);
+ test_spi_exec_query(&local_passed, &local_total);
+ test_spi_exec_utility(&local_passed, &local_total);
+
+ elog(WARNING, "%s %d/%d passed", __FUNCTION__, local_passed, local_total);
+ *passed += local_passed;
+ *total += local_total;
+}
+
+#endif
--- /dev/null
+\pset null '(null)'
+CREATE TABLE s0.st3();
+/*
+ * No.16-1 export_plain_stats.sql.sample
+ */
+-- No.16-1-1
+ANALYZE;
+DELETE FROM dbms_stats._column_stats_locked;
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+UPDATE dbms_stats._relation_stats_locked
+ SET (relpages, reltuples, curpages) = (0,0,0);
+UPDATE dbms_stats._column_stats_locked SET
+ stanullfrac = -staattnum,
+ stawidth = -staattnum,
+ stadistinct = -staattnum,
+ stakind1 = 2,
+ stakind2 = 3,
+ stakind3 = 4,
+ stakind4 = 1,
+ staop1 = 22,
+ staop2 = 23,
+ staop3 = 24,
+ staop4 = 21,
+ stanumbers1 = ARRAY[-staattnum,22],
+ stanumbers2 = ARRAY[-staattnum,23],
+ stanumbers3 = ARRAY[-staattnum,24],
+ stanumbers4 = ARRAY[-staattnum,21],
+ stavalues1 = stavalues3,
+ stavalues2 = stavalues2,
+ stavalues3 = stavalues1,
+ stavalues4 = stavalues4;
+\i export_plain_stats.sql.sample
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+TRUNCATE dbms_stats.work;
+-- No.16-1-2
+\! sed '/ORDER/i\\ AND n2.nspname = '"\'s0\'" export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+-- No.16-1-3
+\! sed '/ORDER/i\\ AND c.relname = '"\'st0\'" export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+-- No.16-1-4
+\! sed '/ORDER/i\\ AND c.relname = '"\'pg_toast_1262\'" export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+-- No.16-1-5
+\! sed '/ORDER/i\\ AND c.relname = '"\'st0_idx\'" export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+-- No.16-1-6
+\! sed '/ORDER/i\\ AND c.relname = '"\'ss0\'" export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+-- No.16-1-7
+\! sed '/ORDER/i\\ AND c.relname = '"\'sc0\'" export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+-- No.16-1-8
+\! sed '/ORDER/i\\ AND c.relname = '"\'sft0\'" export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+-- No.16-1-9
+\! sed '/ORDER/i\\ AND n2.nspname = '"\'s0\'"' AND a.attname = '\'id\' export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+-- No.16-1-10
+\! sed '/ORDER/i\\ AND n2.nspname = '"\'s0\'"' AND a.attname IS NULL' export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+-- No.16-1-11
+\! sed '/ORDER/i\\ AND n2.nspname = '"\'s1\'"' AND c.relname IS NULL' export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+
+/*
+ * No.16-2 export_effective_stats.sql.sample
+ */
+-- No.16-2-1
+VACUUM ANALYZE;
+SELECT dbms_stats.lock_database_stats();
+UPDATE dbms_stats._relation_stats_locked
+ SET (relpages, reltuples, curpages) = (NULL, NULL, NULL);
+UPDATE dbms_stats._column_stats_locked
+ SET (stanullfrac, stawidth, stadistinct,
+ stakind1, stakind2, stakind3, stakind4,
+ staop1, staop2, staop3, staop4,
+ stanumbers1, stanumbers2, stanumbers3, stanumbers4,
+ stavalues1, stavalues2, stavalues3, stavalues4)
+ = (NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL)
+ WHERE starelid = 's0.st0'::regclass;
+\i export_effective_stats.sql.sample
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+TRUNCATE dbms_stats.work;
+-- No.16-2-2
+\! sed '/ORDER/i\\ WHERE n2.nspname = '"\'s0\'" export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+-- No.16-2-3
+\! sed '/ORDER/i\\ WHERE cl.relname = '"\'st0\'" export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+-- No.16-2-4
+\! sed '/ORDER/i\\ WHERE cl.relname = '"\'pg_toast_1262\'" export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+-- No.16-2-5
+\! sed '/ORDER/i\\ WHERE cl.relname = '"\'st0_idx\'" export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+-- No.16-2-6
+\! sed '/ORDER/i\\ WHERE cl.relname = '"\'ss0\'" export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+-- No.16-2-7
+\! sed '/ORDER/i\\ WHERE cl.relname = '"\'sc0\'" export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+-- No.16-2-8
+\! sed '/ORDER/i\\ WHERE cl.relname = '"\'sft0\'" export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+-- No.16-2-9
+\! sed '/ORDER/i\\ WHERE n2.nspname = '"\'s0\'"' AND a.attname = '"\'id\'" export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+-- No.16-2-10
+\! sed '/ORDER/i\\ WHERE n2.nspname = '"\'s0\'"' AND a.attname IS NULL' export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+-- No.16-2-11
+\! sed '/ORDER/i\\ WHERE n2.nspname = '"\'s0\'"' AND cl.relname IS NULL' export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+
+/*
+ * Stab function dbms_stats.import
+ */
+ALTER FUNCTION dbms_stats.import(
+ nspname text,
+ relid regclass,
+ attname text,
+ src text
+) RENAME TO truth_import;
+CREATE FUNCTION dbms_stats.import(
+ nspname text,
+ relid regclass,
+ attname text,
+ src text
+) RETURNS void AS
+$$
+BEGIN
+ RAISE NOTICE 'arguments are "%", "%", "%", "%"', $1, $2, $3, $4;
+ RETURN;
+END
+$$
+LANGUAGE plpgsql;
+/*
+ * No.17-1 dbms_stats.import_database_stats(src)
+ */
+-- No.17-1-1
+SELECT dbms_stats.import_database_stats('@abs_srcdir@/export_stats.dmp');
+
+/*
+ * No.17-2 dbms_stats.import_schema_stats(schemaname, src)
+ */
+-- No.17-2-1
+SELECT dbms_stats.import_schema_stats('s0', '@abs_srcdir@/export_stats.dmp');
+
+/*
+ * No.17-3 dbms_stats.import_table_stats(relid, src)
+ */
+-- No.17-3-1
+SELECT dbms_stats.import_table_stats('s0.st0', '@abs_srcdir@/export_stats.dmp');
+
+/*
+ * No.17-4 dbms_stats.import_table_stats(schemaname, tablename, src)
+ */
+-- No.17-4-1
+SELECT dbms_stats.import_table_stats('s0', 'st0', '@abs_srcdir@/export_stats.dmp');
+
+/*
+ * No.17-5 dbms_stats.import_column_stats (relid, attname, src)
+ */
+-- No.17-5-1
+SELECT dbms_stats.import_column_stats('s0.st0', 'id', '@abs_srcdir@/export_stats.dmp');
+
+/*
+ * No.17-6 dbms_stats.import_column_stats (schemaname, tablename, attname, src)
+ */
+-- No.17-6-1
+SELECT dbms_stats.import_column_stats('s0', 'st0', 'id','@abs_srcdir@/export_stats.dmp');
+
+/*
+ * Delete stab function dbms_stats.import
+ */
+DROP FUNCTION dbms_stats.import(
+ nspname text,
+ relid regclass,
+ attname text,
+ src text
+);
+ALTER FUNCTION dbms_stats.truth_import(
+ nspname text,
+ relid regclass,
+ attname text,
+ src text
+) RENAME TO import;
--- /dev/null
+\pset null '(null)'
+CREATE TABLE s0.st3();
+/*
+ * No.16-1 export_plain_stats.sql.sample
+ */
+-- No.16-1-1
+ANALYZE;
+DELETE FROM dbms_stats._column_stats_locked;
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+UPDATE dbms_stats._relation_stats_locked
+ SET (relpages, reltuples, relallvisible, curpages) = (0,0,0,0);
+UPDATE dbms_stats._column_stats_locked SET
+ stanullfrac = -staattnum,
+ stawidth = -staattnum,
+ stadistinct = -staattnum,
+ stakind1 = 2,
+ stakind2 = 3,
+ stakind3 = 4,
+ stakind4 = 1,
+ stakind5 = 5,
+ staop1 = 22,
+ staop2 = 23,
+ staop3 = 24,
+ staop4 = 21,
+ staop5 = 25,
+ stanumbers1 = ARRAY[-staattnum,22],
+ stanumbers2 = ARRAY[-staattnum,23],
+ stanumbers3 = ARRAY[-staattnum,24],
+ stanumbers4 = ARRAY[-staattnum,21],
+ stanumbers5 = ARRAY[-staattnum,25],
+ stavalues1 = stavalues3,
+ stavalues2 = stavalues2,
+ stavalues3 = stavalues1,
+ stavalues4 = stavalues4,
+ stavalues5 = stavalues5;
+\i export_plain_stats.sql.sample
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+TRUNCATE dbms_stats.work;
+-- No.16-1-2
+\! sed '/ORDER/i\\ AND n2.nspname = '"\'s0\'" export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+-- No.16-1-3
+\! sed '/ORDER/i\\ AND c.relname = '"\'st0\'" export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+-- No.16-1-4
+\! sed '/ORDER/i\\ AND c.relname = '"\'pg_toast_1262\'" export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+-- No.16-1-5
+\! sed '/ORDER/i\\ AND c.relname = '"\'st0_idx\'" export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+-- No.16-1-6
+\! sed '/ORDER/i\\ AND c.relname = '"\'ss0\'" export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+-- No.16-1-7
+\! sed '/ORDER/i\\ AND c.relname = '"\'sc0\'" export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+-- No.16-1-8
+\! sed '/ORDER/i\\ AND c.relname = '"\'sft0\'" export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+-- No.16-1-9
+\! sed '/ORDER/i\\ AND n2.nspname = '"\'s0\'"' AND a.attname = '\'id\' export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+-- No.16-1-10
+\! sed '/ORDER/i\\ AND n2.nspname = '"\'s0\'"' AND a.attname IS NULL' export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+-- No.16-1-11
+\! sed '/ORDER/i\\ AND n2.nspname = '"\'s1\'"' AND c.relname IS NULL' export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+
+/*
+ * No.16-2 export_effective_stats.sql.sample
+ */
+-- No.16-2-1
+VACUUM ANALYZE;
+SELECT dbms_stats.lock_database_stats();
+UPDATE dbms_stats._relation_stats_locked
+ SET (relpages, reltuples, relallvisible, curpages) = (NULL, NULL, NULL, NULL);
+UPDATE dbms_stats._column_stats_locked
+ SET (stanullfrac, stawidth, stadistinct,
+ stakind1, stakind2, stakind3, stakind4, stakind5,
+ staop1, staop2, staop3, staop4, staop5,
+ stanumbers1, stanumbers2, stanumbers3, stanumbers4, stanumbers5,
+ stavalues1, stavalues2, stavalues3, stavalues4, stavalues5)
+ = (NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL)
+ WHERE starelid = 's0.st0'::regclass;
+\i export_effective_stats.sql.sample
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+TRUNCATE dbms_stats.work;
+-- No.16-2-2
+\! sed '/ORDER/i\\ WHERE n2.nspname = '"\'s0\'" export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+-- No.16-2-3
+\! sed '/ORDER/i\\ WHERE cl.relname = '"\'st0\'" export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+-- No.16-2-4
+\! sed '/ORDER/i\\ WHERE cl.relname = '"\'pg_toast_1262\'" export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+-- No.16-2-5
+\! sed '/ORDER/i\\ WHERE cl.relname = '"\'st0_idx\'" export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+-- No.16-2-6
+\! sed '/ORDER/i\\ WHERE cl.relname = '"\'ss0\'" export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+-- No.16-2-7
+\! sed '/ORDER/i\\ WHERE cl.relname = '"\'sc0\'" export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+-- No.16-2-8
+\! sed '/ORDER/i\\ WHERE cl.relname = '"\'sft0\'" export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+-- No.16-2-9
+\! sed '/ORDER/i\\ WHERE n2.nspname = '"\'s0\'"' AND a.attname = '"\'id\'" export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+-- No.16-2-10
+\! sed '/ORDER/i\\ WHERE n2.nspname = '"\'s0\'"' AND a.attname IS NULL' export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+-- No.16-2-11
+\! sed '/ORDER/i\\ WHERE n2.nspname = '"\'s0\'"' AND cl.relname IS NULL' export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+
+/*
+ * Stab function dbms_stats.import
+ */
+ALTER FUNCTION dbms_stats.import(
+ nspname text,
+ relid regclass,
+ attname text,
+ src text
+) RENAME TO truth_import;
+CREATE FUNCTION dbms_stats.import(
+ nspname text,
+ relid regclass,
+ attname text,
+ src text
+) RETURNS void AS
+$$
+BEGIN
+ RAISE NOTICE 'arguments are "%", "%", "%", "%"', $1, $2, $3, $4;
+ RETURN;
+END
+$$
+LANGUAGE plpgsql;
+/*
+ * No.17-1 dbms_stats.import_database_stats(src)
+ */
+-- No.17-1-1
+SELECT dbms_stats.import_database_stats('@abs_srcdir@/export_stats.dmp');
+
+/*
+ * No.17-2 dbms_stats.import_schema_stats(schemaname, src)
+ */
+-- No.17-2-1
+SELECT dbms_stats.import_schema_stats('s0', '@abs_srcdir@/export_stats.dmp');
+
+/*
+ * No.17-3 dbms_stats.import_table_stats(relid, src)
+ */
+-- No.17-3-1
+SELECT dbms_stats.import_table_stats('s0.st0', '@abs_srcdir@/export_stats.dmp');
+
+/*
+ * No.17-4 dbms_stats.import_table_stats(schemaname, tablename, src)
+ */
+-- No.17-4-1
+SELECT dbms_stats.import_table_stats('s0', 'st0', '@abs_srcdir@/export_stats.dmp');
+
+/*
+ * No.17-5 dbms_stats.import_column_stats (relid, attname, src)
+ */
+-- No.17-5-1
+SELECT dbms_stats.import_column_stats('s0.st0', 'id', '@abs_srcdir@/export_stats.dmp');
+
+/*
+ * No.17-6 dbms_stats.import_column_stats (schemaname, tablename, attname, src)
+ */
+-- No.17-6-1
+SELECT dbms_stats.import_column_stats('s0', 'st0', 'id','@abs_srcdir@/export_stats.dmp');
+
+/*
+ * Delete stab function dbms_stats.import
+ */
+DROP FUNCTION dbms_stats.import(
+ nspname text,
+ relid regclass,
+ attname text,
+ src text
+);
+ALTER FUNCTION dbms_stats.truth_import(
+ nspname text,
+ relid regclass,
+ attname text,
+ src text
+) RENAME TO import;
--- /dev/null
+\pset null '(null)'
+CREATE TABLE s0.st3();
+/*
+ * No.16-1 export_plain_stats.sql.sample
+ */
+-- No.16-1-1
+ANALYZE;
+DELETE FROM dbms_stats._column_stats_locked;
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+ s0.st3
+(15 rows)
+
+UPDATE dbms_stats._relation_stats_locked
+ SET (relpages, reltuples, curpages) = (0,0,0);
+UPDATE dbms_stats._column_stats_locked SET
+ stanullfrac = -staattnum,
+ stawidth = -staattnum,
+ stadistinct = -staattnum,
+ stakind1 = 2,
+ stakind2 = 3,
+ stakind3 = 4,
+ stakind4 = 1,
+ staop1 = 22,
+ staop2 = 23,
+ staop3 = 24,
+ staop4 = 21,
+ stanumbers1 = ARRAY[-staattnum,22],
+ stanumbers2 = ARRAY[-staattnum,23],
+ stanumbers3 = ARRAY[-staattnum,24],
+ stanumbers4 = ARRAY[-staattnum,21],
+ stavalues1 = stavalues3,
+ stavalues2 = stavalues2,
+ stavalues3 = stavalues1,
+ stavalues4 = stavalues4;
+\i export_plain_stats.sql.sample
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ c.relname,
+ c.relpages,
+ c.reltuples,
+ (pg_relation_size(c.oid) / current_setting('block_size')::int4)::int4
+ AS curpages,
+ pg_catalog.pg_stat_get_last_analyze_time(c.oid)
+ AS last_analyze,
+ pg_catalog.pg_stat_get_last_autoanalyze_time(c.oid)
+ AS last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ s.stainherit,
+ s.stanullfrac,
+ s.stawidth,
+ s.stadistinct,
+ s.stakind1,
+ s.stakind2,
+ s.stakind3,
+ s.stakind4,
+ s.staop1,
+ s.staop2,
+ s.staop3,
+ s.staop4,
+ s.stanumbers1,
+ s.stanumbers2,
+ s.stanumbers3,
+ s.stanumbers4,
+ s.stavalues1,
+ s.stavalues2,
+ s.stavalues3,
+ s.stavalues4
+ FROM pg_statistic s
+ JOIN pg_attribute a
+ ON (s.starelid = a.attrelid AND s.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN pg_catalog.pg_class c
+ ON s.starelid = c.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON c.relnamespace = n2.oid
+ WHERE c.relkind IN ('r', 'i')
+ AND NOT n2.nspname IN ('pg_catalog',
+ 'pg_toast',
+ 'information_schema',
+ 'dbms_stats')
+ -- AND n2.nspname = 'public'
+ -- AND c.relname = 'test'
+ -- AND a.attname = 'id'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+---------+---------+----------+-----------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+------------------------+-------------+-------------+-------------+------------------+------------+------------+------------
+ public | pt0 | 0 | 0 | 0 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ public | pt0_idx | 2 | 0 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ public | st0 | 1 | 2 | 1 | id | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2} | (null) | (null) | (null)
+ public | st0 | 1 | 2 | 1 | name | pg_catalog | bpchar | 9 | f | 0 | 6 | -0.5 | 1 | 3 | 0 | 0 | 1054 | 1058 | 0 | 0 | {1} | {1} | (null) | (null) | {"test "} | (null) | (null) | (null)
+ public | st0_idx | 2 | 2 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ public | st1 | 45 | 10000 | 45 | str | pg_catalog | text | -1 | f | 0 | 2 | 3 | 1 | 3 | 0 | 0 | 98 | 664 | 0 | 0 | {0.3334,0.3333,0.3333} | {0.3332} | (null) | (null) | {1,0,2} | (null) | (null) | (null)
+ public | st1 | 45 | 10000 | 45 | val | pg_catalog | int4 | -1 | f | 0 | 4 | 3 | 1 | 3 | 0 | 0 | 96 | 97 | 0 | 0 | {0.3334,0.3333,0.3333} | {0.3332} | (null) | (null) | {1,0,2} | (null) | (null) | (null)
+ public | st1_exp | 30 | 10000 | 30 | lower | pg_catalog | text | -1 | f | 0 | 5 | 3 | 1 | 3 | 0 | 0 | 98 | 664 | 0 | 0 | {0.3334,0.3333,0.3333} | {0.3332} | (null) | (null) | {1,0,2} | (null) | (null) | (null)
+ public | st1_idx | 30 | 10000 | 30 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | id | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2} | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | id | pg_catalog | int4 | -1 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | num | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {10,20} | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | num | pg_catalog | int4 | -1 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {10,20,40,50,60} | (null) | (null) | (null)
+ s0 | st0_idx | 2 | 2 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st1 | 1 | 3 | 1 | id | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {4,5,6} | (null) | (null) | (null)
+ s0 | st1 | 1 | 3 | 1 | num | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {40,50,60} | (null) | (null) | (null)
+ s0 | st1_idx | 2 | 3 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st2 | 1 | 3 | 1 | id | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2,3} | (null) | (null) | (null)
+ s0 | st2 | 1 | 3 | 1 | txt | pg_catalog | text | -1 | f | 0 | 5 | -1 | 2 | 3 | 0 | 0 | 664 | 664 | 0 | 0 | (null) | {0.5} | (null) | (null) | {1,comment,test} | (null) | (null) | (null)
+ s0 | st2_idx | 2 | 3 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st3 | 0 | 0 | 0 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s1 | st0 | 1 | 4 | 1 | id | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2,3,4} | (null) | (null) | (null)
+ s1 | st0 | 1 | 4 | 1 | num | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {15,25,35,45} | (null) | (null) | (null)
+(23 rows)
+
+TRUNCATE dbms_stats.work;
+-- No.16-1-2
+\! sed '/ORDER/i\\ AND n2.nspname = '"\'s0\'" export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ c.relname,
+ c.relpages,
+ c.reltuples,
+ (pg_relation_size(c.oid) / current_setting('block_size')::int4)::int4
+ AS curpages,
+ pg_catalog.pg_stat_get_last_analyze_time(c.oid)
+ AS last_analyze,
+ pg_catalog.pg_stat_get_last_autoanalyze_time(c.oid)
+ AS last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ s.stainherit,
+ s.stanullfrac,
+ s.stawidth,
+ s.stadistinct,
+ s.stakind1,
+ s.stakind2,
+ s.stakind3,
+ s.stakind4,
+ s.staop1,
+ s.staop2,
+ s.staop3,
+ s.staop4,
+ s.stanumbers1,
+ s.stanumbers2,
+ s.stanumbers3,
+ s.stanumbers4,
+ s.stavalues1,
+ s.stavalues2,
+ s.stavalues3,
+ s.stavalues4
+ FROM pg_statistic s
+ JOIN pg_attribute a
+ ON (s.starelid = a.attrelid AND s.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN pg_catalog.pg_class c
+ ON s.starelid = c.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON c.relnamespace = n2.oid
+ WHERE c.relkind IN ('r', 'i')
+ AND NOT n2.nspname IN ('pg_catalog',
+ 'pg_toast',
+ 'information_schema',
+ 'dbms_stats')
+ -- AND n2.nspname = 'public'
+ -- AND c.relname = 'test'
+ -- AND a.attname = 'id'
+ AND n2.nspname = 's0'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+---------+---------+----------+-----------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+------------------+------------+------------+------------
+ s0 | st0 | 1 | 2 | 1 | id | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2} | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | id | pg_catalog | int4 | -1 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | num | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {10,20} | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | num | pg_catalog | int4 | -1 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {10,20,40,50,60} | (null) | (null) | (null)
+ s0 | st0_idx | 2 | 2 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st1 | 1 | 3 | 1 | id | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {4,5,6} | (null) | (null) | (null)
+ s0 | st1 | 1 | 3 | 1 | num | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {40,50,60} | (null) | (null) | (null)
+ s0 | st1_idx | 2 | 3 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st2 | 1 | 3 | 1 | id | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2,3} | (null) | (null) | (null)
+ s0 | st2 | 1 | 3 | 1 | txt | pg_catalog | text | -1 | f | 0 | 5 | -1 | 2 | 3 | 0 | 0 | 664 | 664 | 0 | 0 | (null) | {0.5} | (null) | (null) | {1,comment,test} | (null) | (null) | (null)
+ s0 | st2_idx | 2 | 3 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st3 | 0 | 0 | 0 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+(12 rows)
+
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+-- No.16-1-3
+\! sed '/ORDER/i\\ AND c.relname = '"\'st0\'" export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ c.relname,
+ c.relpages,
+ c.reltuples,
+ (pg_relation_size(c.oid) / current_setting('block_size')::int4)::int4
+ AS curpages,
+ pg_catalog.pg_stat_get_last_analyze_time(c.oid)
+ AS last_analyze,
+ pg_catalog.pg_stat_get_last_autoanalyze_time(c.oid)
+ AS last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ s.stainherit,
+ s.stanullfrac,
+ s.stawidth,
+ s.stadistinct,
+ s.stakind1,
+ s.stakind2,
+ s.stakind3,
+ s.stakind4,
+ s.staop1,
+ s.staop2,
+ s.staop3,
+ s.staop4,
+ s.stanumbers1,
+ s.stanumbers2,
+ s.stanumbers3,
+ s.stanumbers4,
+ s.stavalues1,
+ s.stavalues2,
+ s.stavalues3,
+ s.stavalues4
+ FROM pg_statistic s
+ JOIN pg_attribute a
+ ON (s.starelid = a.attrelid AND s.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN pg_catalog.pg_class c
+ ON s.starelid = c.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON c.relnamespace = n2.oid
+ WHERE c.relkind IN ('r', 'i')
+ AND NOT n2.nspname IN ('pg_catalog',
+ 'pg_toast',
+ 'information_schema',
+ 'dbms_stats')
+ -- AND n2.nspname = 'public'
+ -- AND c.relname = 'test'
+ -- AND a.attname = 'id'
+ AND c.relname = 'st0'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+---------+---------+----------+-----------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+------------------+------------+------------+------------
+ public | st0 | 1 | 2 | 1 | id | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2} | (null) | (null) | (null)
+ public | st0 | 1 | 2 | 1 | name | pg_catalog | bpchar | 9 | f | 0 | 6 | -0.5 | 1 | 3 | 0 | 0 | 1054 | 1058 | 0 | 0 | {1} | {1} | (null) | (null) | {"test "} | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | id | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2} | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | id | pg_catalog | int4 | -1 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | num | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {10,20} | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | num | pg_catalog | int4 | -1 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {10,20,40,50,60} | (null) | (null) | (null)
+ s1 | st0 | 1 | 4 | 1 | id | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2,3,4} | (null) | (null) | (null)
+ s1 | st0 | 1 | 4 | 1 | num | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {15,25,35,45} | (null) | (null) | (null)
+(8 rows)
+
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+-- No.16-1-4
+\! sed '/ORDER/i\\ AND c.relname = '"\'pg_toast_1262\'" export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ c.relname,
+ c.relpages,
+ c.reltuples,
+ (pg_relation_size(c.oid) / current_setting('block_size')::int4)::int4
+ AS curpages,
+ pg_catalog.pg_stat_get_last_analyze_time(c.oid)
+ AS last_analyze,
+ pg_catalog.pg_stat_get_last_autoanalyze_time(c.oid)
+ AS last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ s.stainherit,
+ s.stanullfrac,
+ s.stawidth,
+ s.stadistinct,
+ s.stakind1,
+ s.stakind2,
+ s.stakind3,
+ s.stakind4,
+ s.staop1,
+ s.staop2,
+ s.staop3,
+ s.staop4,
+ s.stanumbers1,
+ s.stanumbers2,
+ s.stanumbers3,
+ s.stanumbers4,
+ s.stavalues1,
+ s.stavalues2,
+ s.stavalues3,
+ s.stavalues4
+ FROM pg_statistic s
+ JOIN pg_attribute a
+ ON (s.starelid = a.attrelid AND s.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN pg_catalog.pg_class c
+ ON s.starelid = c.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON c.relnamespace = n2.oid
+ WHERE c.relkind IN ('r', 'i')
+ AND NOT n2.nspname IN ('pg_catalog',
+ 'pg_toast',
+ 'information_schema',
+ 'dbms_stats')
+ -- AND n2.nspname = 'public'
+ -- AND c.relname = 'test'
+ -- AND a.attname = 'id'
+ AND c.relname = 'pg_toast_1262'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+---------+---------+----------+-----------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+------------+------------+------------+------------
+(0 rows)
+
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+-- No.16-1-5
+\! sed '/ORDER/i\\ AND c.relname = '"\'st0_idx\'" export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ c.relname,
+ c.relpages,
+ c.reltuples,
+ (pg_relation_size(c.oid) / current_setting('block_size')::int4)::int4
+ AS curpages,
+ pg_catalog.pg_stat_get_last_analyze_time(c.oid)
+ AS last_analyze,
+ pg_catalog.pg_stat_get_last_autoanalyze_time(c.oid)
+ AS last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ s.stainherit,
+ s.stanullfrac,
+ s.stawidth,
+ s.stadistinct,
+ s.stakind1,
+ s.stakind2,
+ s.stakind3,
+ s.stakind4,
+ s.staop1,
+ s.staop2,
+ s.staop3,
+ s.staop4,
+ s.stanumbers1,
+ s.stanumbers2,
+ s.stanumbers3,
+ s.stanumbers4,
+ s.stavalues1,
+ s.stavalues2,
+ s.stavalues3,
+ s.stavalues4
+ FROM pg_statistic s
+ JOIN pg_attribute a
+ ON (s.starelid = a.attrelid AND s.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN pg_catalog.pg_class c
+ ON s.starelid = c.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON c.relnamespace = n2.oid
+ WHERE c.relkind IN ('r', 'i')
+ AND NOT n2.nspname IN ('pg_catalog',
+ 'pg_toast',
+ 'information_schema',
+ 'dbms_stats')
+ -- AND n2.nspname = 'public'
+ -- AND c.relname = 'test'
+ -- AND a.attname = 'id'
+ AND c.relname = 'st0_idx'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+---------+---------+----------+-----------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+------------+------------+------------+------------
+ public | st0_idx | 2 | 2 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st0_idx | 2 | 2 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+(2 rows)
+
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+-- No.16-1-6
+\! sed '/ORDER/i\\ AND c.relname = '"\'ss0\'" export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ c.relname,
+ c.relpages,
+ c.reltuples,
+ (pg_relation_size(c.oid) / current_setting('block_size')::int4)::int4
+ AS curpages,
+ pg_catalog.pg_stat_get_last_analyze_time(c.oid)
+ AS last_analyze,
+ pg_catalog.pg_stat_get_last_autoanalyze_time(c.oid)
+ AS last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ s.stainherit,
+ s.stanullfrac,
+ s.stawidth,
+ s.stadistinct,
+ s.stakind1,
+ s.stakind2,
+ s.stakind3,
+ s.stakind4,
+ s.staop1,
+ s.staop2,
+ s.staop3,
+ s.staop4,
+ s.stanumbers1,
+ s.stanumbers2,
+ s.stanumbers3,
+ s.stanumbers4,
+ s.stavalues1,
+ s.stavalues2,
+ s.stavalues3,
+ s.stavalues4
+ FROM pg_statistic s
+ JOIN pg_attribute a
+ ON (s.starelid = a.attrelid AND s.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN pg_catalog.pg_class c
+ ON s.starelid = c.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON c.relnamespace = n2.oid
+ WHERE c.relkind IN ('r', 'i')
+ AND NOT n2.nspname IN ('pg_catalog',
+ 'pg_toast',
+ 'information_schema',
+ 'dbms_stats')
+ -- AND n2.nspname = 'public'
+ -- AND c.relname = 'test'
+ -- AND a.attname = 'id'
+ AND c.relname = 'ss0'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+---------+---------+----------+-----------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+------------+------------+------------+------------
+(0 rows)
+
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+-- No.16-1-7
+\! sed '/ORDER/i\\ AND c.relname = '"\'sc0\'" export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ c.relname,
+ c.relpages,
+ c.reltuples,
+ (pg_relation_size(c.oid) / current_setting('block_size')::int4)::int4
+ AS curpages,
+ pg_catalog.pg_stat_get_last_analyze_time(c.oid)
+ AS last_analyze,
+ pg_catalog.pg_stat_get_last_autoanalyze_time(c.oid)
+ AS last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ s.stainherit,
+ s.stanullfrac,
+ s.stawidth,
+ s.stadistinct,
+ s.stakind1,
+ s.stakind2,
+ s.stakind3,
+ s.stakind4,
+ s.staop1,
+ s.staop2,
+ s.staop3,
+ s.staop4,
+ s.stanumbers1,
+ s.stanumbers2,
+ s.stanumbers3,
+ s.stanumbers4,
+ s.stavalues1,
+ s.stavalues2,
+ s.stavalues3,
+ s.stavalues4
+ FROM pg_statistic s
+ JOIN pg_attribute a
+ ON (s.starelid = a.attrelid AND s.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN pg_catalog.pg_class c
+ ON s.starelid = c.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON c.relnamespace = n2.oid
+ WHERE c.relkind IN ('r', 'i')
+ AND NOT n2.nspname IN ('pg_catalog',
+ 'pg_toast',
+ 'information_schema',
+ 'dbms_stats')
+ -- AND n2.nspname = 'public'
+ -- AND c.relname = 'test'
+ -- AND a.attname = 'id'
+ AND c.relname = 'sc0'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+---------+---------+----------+-----------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+------------+------------+------------+------------
+(0 rows)
+
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+-- No.16-1-8
+\! sed '/ORDER/i\\ AND c.relname = '"\'sft0\'" export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ c.relname,
+ c.relpages,
+ c.reltuples,
+ (pg_relation_size(c.oid) / current_setting('block_size')::int4)::int4
+ AS curpages,
+ pg_catalog.pg_stat_get_last_analyze_time(c.oid)
+ AS last_analyze,
+ pg_catalog.pg_stat_get_last_autoanalyze_time(c.oid)
+ AS last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ s.stainherit,
+ s.stanullfrac,
+ s.stawidth,
+ s.stadistinct,
+ s.stakind1,
+ s.stakind2,
+ s.stakind3,
+ s.stakind4,
+ s.staop1,
+ s.staop2,
+ s.staop3,
+ s.staop4,
+ s.stanumbers1,
+ s.stanumbers2,
+ s.stanumbers3,
+ s.stanumbers4,
+ s.stavalues1,
+ s.stavalues2,
+ s.stavalues3,
+ s.stavalues4
+ FROM pg_statistic s
+ JOIN pg_attribute a
+ ON (s.starelid = a.attrelid AND s.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN pg_catalog.pg_class c
+ ON s.starelid = c.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON c.relnamespace = n2.oid
+ WHERE c.relkind IN ('r', 'i')
+ AND NOT n2.nspname IN ('pg_catalog',
+ 'pg_toast',
+ 'information_schema',
+ 'dbms_stats')
+ -- AND n2.nspname = 'public'
+ -- AND c.relname = 'test'
+ -- AND a.attname = 'id'
+ AND c.relname = 'sft0'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+---------+---------+----------+-----------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+------------+------------+------------+------------
+(0 rows)
+
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+-- No.16-1-9
+\! sed '/ORDER/i\\ AND n2.nspname = '"\'s0\'"' AND a.attname = '\'id\' export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ c.relname,
+ c.relpages,
+ c.reltuples,
+ (pg_relation_size(c.oid) / current_setting('block_size')::int4)::int4
+ AS curpages,
+ pg_catalog.pg_stat_get_last_analyze_time(c.oid)
+ AS last_analyze,
+ pg_catalog.pg_stat_get_last_autoanalyze_time(c.oid)
+ AS last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ s.stainherit,
+ s.stanullfrac,
+ s.stawidth,
+ s.stadistinct,
+ s.stakind1,
+ s.stakind2,
+ s.stakind3,
+ s.stakind4,
+ s.staop1,
+ s.staop2,
+ s.staop3,
+ s.staop4,
+ s.stanumbers1,
+ s.stanumbers2,
+ s.stanumbers3,
+ s.stanumbers4,
+ s.stavalues1,
+ s.stavalues2,
+ s.stavalues3,
+ s.stavalues4
+ FROM pg_statistic s
+ JOIN pg_attribute a
+ ON (s.starelid = a.attrelid AND s.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN pg_catalog.pg_class c
+ ON s.starelid = c.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON c.relnamespace = n2.oid
+ WHERE c.relkind IN ('r', 'i')
+ AND NOT n2.nspname IN ('pg_catalog',
+ 'pg_toast',
+ 'information_schema',
+ 'dbms_stats')
+ -- AND n2.nspname = 'public'
+ -- AND c.relname = 'test'
+ -- AND a.attname = 'id'
+ AND n2.nspname = 's0' AND a.attname = 'id'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+---------+---------+----------+-----------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------+------------+------------
+ s0 | st0 | 1 | 2 | 1 | id | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2} | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | id | pg_catalog | int4 | -1 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null)
+ s0 | st1 | 1 | 3 | 1 | id | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {4,5,6} | (null) | (null) | (null)
+ s0 | st2 | 1 | 3 | 1 | id | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2,3} | (null) | (null) | (null)
+(4 rows)
+
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+-- No.16-1-10
+\! sed '/ORDER/i\\ AND n2.nspname = '"\'s0\'"' AND a.attname IS NULL' export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ c.relname,
+ c.relpages,
+ c.reltuples,
+ (pg_relation_size(c.oid) / current_setting('block_size')::int4)::int4
+ AS curpages,
+ pg_catalog.pg_stat_get_last_analyze_time(c.oid)
+ AS last_analyze,
+ pg_catalog.pg_stat_get_last_autoanalyze_time(c.oid)
+ AS last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ s.stainherit,
+ s.stanullfrac,
+ s.stawidth,
+ s.stadistinct,
+ s.stakind1,
+ s.stakind2,
+ s.stakind3,
+ s.stakind4,
+ s.staop1,
+ s.staop2,
+ s.staop3,
+ s.staop4,
+ s.stanumbers1,
+ s.stanumbers2,
+ s.stanumbers3,
+ s.stanumbers4,
+ s.stavalues1,
+ s.stavalues2,
+ s.stavalues3,
+ s.stavalues4
+ FROM pg_statistic s
+ JOIN pg_attribute a
+ ON (s.starelid = a.attrelid AND s.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN pg_catalog.pg_class c
+ ON s.starelid = c.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON c.relnamespace = n2.oid
+ WHERE c.relkind IN ('r', 'i')
+ AND NOT n2.nspname IN ('pg_catalog',
+ 'pg_toast',
+ 'information_schema',
+ 'dbms_stats')
+ -- AND n2.nspname = 'public'
+ -- AND c.relname = 'test'
+ -- AND a.attname = 'id'
+ AND n2.nspname = 's0' AND a.attname IS NULL
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+---------+---------+----------+-----------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+------------+------------+------------+------------
+ s0 | st0_idx | 2 | 2 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st1_idx | 2 | 3 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st2_idx | 2 | 3 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st3 | 0 | 0 | 0 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+(4 rows)
+
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+-- No.16-1-11
+\! sed '/ORDER/i\\ AND n2.nspname = '"\'s1\'"' AND c.relname IS NULL' export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ c.relname,
+ c.relpages,
+ c.reltuples,
+ (pg_relation_size(c.oid) / current_setting('block_size')::int4)::int4
+ AS curpages,
+ pg_catalog.pg_stat_get_last_analyze_time(c.oid)
+ AS last_analyze,
+ pg_catalog.pg_stat_get_last_autoanalyze_time(c.oid)
+ AS last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ s.stainherit,
+ s.stanullfrac,
+ s.stawidth,
+ s.stadistinct,
+ s.stakind1,
+ s.stakind2,
+ s.stakind3,
+ s.stakind4,
+ s.staop1,
+ s.staop2,
+ s.staop3,
+ s.staop4,
+ s.stanumbers1,
+ s.stanumbers2,
+ s.stanumbers3,
+ s.stanumbers4,
+ s.stavalues1,
+ s.stavalues2,
+ s.stavalues3,
+ s.stavalues4
+ FROM pg_statistic s
+ JOIN pg_attribute a
+ ON (s.starelid = a.attrelid AND s.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN pg_catalog.pg_class c
+ ON s.starelid = c.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON c.relnamespace = n2.oid
+ WHERE c.relkind IN ('r', 'i')
+ AND NOT n2.nspname IN ('pg_catalog',
+ 'pg_toast',
+ 'information_schema',
+ 'dbms_stats')
+ -- AND n2.nspname = 'public'
+ -- AND c.relname = 'test'
+ -- AND a.attname = 'id'
+ AND n2.nspname = 's1' AND c.relname IS NULL
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+---------+---------+----------+-----------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+------------+------------+------------+------------
+(0 rows)
+
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+/*
+ * No.16-2 export_effective_stats.sql.sample
+ */
+-- No.16-2-1
+VACUUM ANALYZE;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ st1_idx
+ st1_exp
+ s1.st0
+ s0.st3
+(15 rows)
+
+UPDATE dbms_stats._relation_stats_locked
+ SET (relpages, reltuples, curpages) = (NULL, NULL, NULL);
+UPDATE dbms_stats._column_stats_locked
+ SET (stanullfrac, stawidth, stadistinct,
+ stakind1, stakind2, stakind3, stakind4,
+ staop1, staop2, staop3, staop4,
+ stanumbers1, stanumbers2, stanumbers3, stanumbers4,
+ stavalues1, stavalues2, stavalues3, stavalues4)
+ = (NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL)
+ WHERE starelid = 's0.st0'::regclass;
+\i export_effective_stats.sql.sample
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ cl.relname,
+ r.relpages,
+ r.reltuples,
+ r.curpages,
+ r.last_analyze,
+ r.last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ co.stainherit,
+ co.stanullfrac,
+ co.stawidth,
+ co.stadistinct,
+ co.stakind1,
+ co.stakind2,
+ co.stakind3,
+ co.stakind4,
+ co.staop1,
+ co.staop2,
+ co.staop3,
+ co.staop4,
+ co.stanumbers1,
+ co.stanumbers2,
+ co.stanumbers3,
+ co.stanumbers4,
+ co.stavalues1,
+ co.stavalues2,
+ co.stavalues3,
+ co.stavalues4
+ FROM dbms_stats.column_stats_effective co
+ JOIN pg_attribute a
+ ON (co.starelid = a.attrelid AND co.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN dbms_stats.relation_stats_effective r
+ ON co.starelid = r.relid
+ JOIN pg_catalog.pg_class cl
+ ON r.relid = cl.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON cl.relnamespace = n2.oid
+ -- WHERE n2.nspname = 'public'
+ -- AND cl.relname = 'test'
+ -- AND a.attname = 'id'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+---------+---------+----------+-----------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+------------------+------------+------------------+------------
+ public | pt0 | 0 | 0 | 0 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ public | pt0_idx | 2 | 0 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ public | st0 | 1 | 2 | 1 | id | pg_catalog | int4 | -1 | f | -1 | -1 | -1 | 2 | 3 | 4 | 1 | 22 | 23 | 24 | 21 | {-1,22} | {-1,23} | {-1,24} | {-1,21} | (null) | (null) | {1,2} | (null)
+ public | st0 | 1 | 2 | 1 | name | pg_catalog | bpchar | 9 | f | -2 | -2 | -2 | 2 | 3 | 4 | 1 | 22 | 23 | 24 | 21 | {-2,22} | {-2,23} | {-2,24} | {-2,21} | (null) | (null) | {"test "} | (null)
+ public | st0_idx | 2 | 2 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ public | st1 | 45 | 10000 | 45 | str | pg_catalog | text | -1 | f | -2 | -2 | -2 | 2 | 3 | 4 | 1 | 22 | 23 | 24 | 21 | {-2,22} | {-2,23} | {-2,24} | {-2,21} | (null) | (null) | {1,0,2} | (null)
+ public | st1 | 45 | 10000 | 45 | val | pg_catalog | int4 | -1 | f | -1 | -1 | -1 | 2 | 3 | 4 | 1 | 22 | 23 | 24 | 21 | {-1,22} | {-1,23} | {-1,24} | {-1,21} | (null) | (null) | {1,0,2} | (null)
+ public | st1_exp | 30 | 10000 | 30 | lower | pg_catalog | text | -1 | f | -1 | -1 | -1 | 2 | 3 | 4 | 1 | 22 | 23 | 24 | 21 | {-1,22} | {-1,23} | {-1,24} | {-1,21} | (null) | (null) | {1,0,2} | (null)
+ public | st1_idx | 30 | 10000 | 30 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | id | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2} | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | id | pg_catalog | int4 | -1 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | num | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {10,20} | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | num | pg_catalog | int4 | -1 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {10,20,40,50,60} | (null) | (null) | (null)
+ s0 | st0_idx | 2 | 2 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st1 | 1 | 3 | 1 | id | pg_catalog | int4 | -1 | f | -1 | -1 | -1 | 2 | 3 | 4 | 1 | 22 | 23 | 24 | 21 | {-1,22} | {-1,23} | {-1,24} | {-1,21} | (null) | (null) | {4,5,6} | (null)
+ s0 | st1 | 1 | 3 | 1 | num | pg_catalog | int4 | -1 | f | -2 | -2 | -2 | 2 | 3 | 4 | 1 | 22 | 23 | 24 | 21 | {-2,22} | {-2,23} | {-2,24} | {-2,21} | (null) | (null) | {40,50,60} | (null)
+ s0 | st1_idx | 2 | 3 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st2 | 1 | 3 | 1 | id | pg_catalog | int4 | -1 | f | -1 | -1 | -1 | 2 | 3 | 4 | 1 | 22 | 23 | 24 | 21 | {-1,22} | {-1,23} | {-1,24} | {-1,21} | (null) | (null) | {1,2,3} | (null)
+ s0 | st2 | 1 | 3 | 1 | txt | pg_catalog | text | -1 | f | -2 | -2 | -2 | 2 | 3 | 4 | 1 | 22 | 23 | 24 | 21 | {-2,22} | {-2,23} | {-2,24} | {-2,21} | (null) | (null) | {1,comment,test} | (null)
+ s0 | st2_idx | 2 | 3 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st3 | 0 | 0 | 0 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s1 | st0 | 1 | 4 | 1 | id | pg_catalog | int4 | -1 | f | -1 | -1 | -1 | 2 | 3 | 4 | 1 | 22 | 23 | 24 | 21 | {-1,22} | {-1,23} | {-1,24} | {-1,21} | (null) | (null) | {1,2,3,4} | (null)
+ s1 | st0 | 1 | 4 | 1 | num | pg_catalog | int4 | -1 | f | -2 | -2 | -2 | 2 | 3 | 4 | 1 | 22 | 23 | 24 | 21 | {-2,22} | {-2,23} | {-2,24} | {-2,21} | (null) | (null) | {15,25,35,45} | (null)
+(23 rows)
+
+TRUNCATE dbms_stats.work;
+-- No.16-2-2
+\! sed '/ORDER/i\\ WHERE n2.nspname = '"\'s0\'" export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ cl.relname,
+ r.relpages,
+ r.reltuples,
+ r.curpages,
+ r.last_analyze,
+ r.last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ co.stainherit,
+ co.stanullfrac,
+ co.stawidth,
+ co.stadistinct,
+ co.stakind1,
+ co.stakind2,
+ co.stakind3,
+ co.stakind4,
+ co.staop1,
+ co.staop2,
+ co.staop3,
+ co.staop4,
+ co.stanumbers1,
+ co.stanumbers2,
+ co.stanumbers3,
+ co.stanumbers4,
+ co.stavalues1,
+ co.stavalues2,
+ co.stavalues3,
+ co.stavalues4
+ FROM dbms_stats.column_stats_effective co
+ JOIN pg_attribute a
+ ON (co.starelid = a.attrelid AND co.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN dbms_stats.relation_stats_effective r
+ ON co.starelid = r.relid
+ JOIN pg_catalog.pg_class cl
+ ON r.relid = cl.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON cl.relnamespace = n2.oid
+ -- WHERE n2.nspname = 'public'
+ -- AND cl.relname = 'test'
+ -- AND a.attname = 'id'
+ WHERE n2.nspname = 's0'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+---------+---------+----------+-----------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+------------------+------------+------------------+------------
+ s0 | st0 | 1 | 2 | 1 | id | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2} | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | id | pg_catalog | int4 | -1 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | num | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {10,20} | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | num | pg_catalog | int4 | -1 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {10,20,40,50,60} | (null) | (null) | (null)
+ s0 | st0_idx | 2 | 2 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st1 | 1 | 3 | 1 | id | pg_catalog | int4 | -1 | f | -1 | -1 | -1 | 2 | 3 | 4 | 1 | 22 | 23 | 24 | 21 | {-1,22} | {-1,23} | {-1,24} | {-1,21} | (null) | (null) | {4,5,6} | (null)
+ s0 | st1 | 1 | 3 | 1 | num | pg_catalog | int4 | -1 | f | -2 | -2 | -2 | 2 | 3 | 4 | 1 | 22 | 23 | 24 | 21 | {-2,22} | {-2,23} | {-2,24} | {-2,21} | (null) | (null) | {40,50,60} | (null)
+ s0 | st1_idx | 2 | 3 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st2 | 1 | 3 | 1 | id | pg_catalog | int4 | -1 | f | -1 | -1 | -1 | 2 | 3 | 4 | 1 | 22 | 23 | 24 | 21 | {-1,22} | {-1,23} | {-1,24} | {-1,21} | (null) | (null) | {1,2,3} | (null)
+ s0 | st2 | 1 | 3 | 1 | txt | pg_catalog | text | -1 | f | -2 | -2 | -2 | 2 | 3 | 4 | 1 | 22 | 23 | 24 | 21 | {-2,22} | {-2,23} | {-2,24} | {-2,21} | (null) | (null) | {1,comment,test} | (null)
+ s0 | st2_idx | 2 | 3 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st3 | 0 | 0 | 0 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+(12 rows)
+
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+-- No.16-2-3
+\! sed '/ORDER/i\\ WHERE cl.relname = '"\'st0\'" export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ cl.relname,
+ r.relpages,
+ r.reltuples,
+ r.curpages,
+ r.last_analyze,
+ r.last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ co.stainherit,
+ co.stanullfrac,
+ co.stawidth,
+ co.stadistinct,
+ co.stakind1,
+ co.stakind2,
+ co.stakind3,
+ co.stakind4,
+ co.staop1,
+ co.staop2,
+ co.staop3,
+ co.staop4,
+ co.stanumbers1,
+ co.stanumbers2,
+ co.stanumbers3,
+ co.stanumbers4,
+ co.stavalues1,
+ co.stavalues2,
+ co.stavalues3,
+ co.stavalues4
+ FROM dbms_stats.column_stats_effective co
+ JOIN pg_attribute a
+ ON (co.starelid = a.attrelid AND co.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN dbms_stats.relation_stats_effective r
+ ON co.starelid = r.relid
+ JOIN pg_catalog.pg_class cl
+ ON r.relid = cl.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON cl.relnamespace = n2.oid
+ -- WHERE n2.nspname = 'public'
+ -- AND cl.relname = 'test'
+ -- AND a.attname = 'id'
+ WHERE cl.relname = 'st0'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+---------+---------+----------+-----------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+------------------+------------+---------------+------------
+ public | st0 | 1 | 2 | 1 | id | pg_catalog | int4 | -1 | f | -1 | -1 | -1 | 2 | 3 | 4 | 1 | 22 | 23 | 24 | 21 | {-1,22} | {-1,23} | {-1,24} | {-1,21} | (null) | (null) | {1,2} | (null)
+ public | st0 | 1 | 2 | 1 | name | pg_catalog | bpchar | 9 | f | -2 | -2 | -2 | 2 | 3 | 4 | 1 | 22 | 23 | 24 | 21 | {-2,22} | {-2,23} | {-2,24} | {-2,21} | (null) | (null) | {"test "} | (null)
+ s0 | st0 | 1 | 2 | 1 | id | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2} | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | id | pg_catalog | int4 | -1 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | num | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {10,20} | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | num | pg_catalog | int4 | -1 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {10,20,40,50,60} | (null) | (null) | (null)
+ s1 | st0 | 1 | 4 | 1 | id | pg_catalog | int4 | -1 | f | -1 | -1 | -1 | 2 | 3 | 4 | 1 | 22 | 23 | 24 | 21 | {-1,22} | {-1,23} | {-1,24} | {-1,21} | (null) | (null) | {1,2,3,4} | (null)
+ s1 | st0 | 1 | 4 | 1 | num | pg_catalog | int4 | -1 | f | -2 | -2 | -2 | 2 | 3 | 4 | 1 | 22 | 23 | 24 | 21 | {-2,22} | {-2,23} | {-2,24} | {-2,21} | (null) | (null) | {15,25,35,45} | (null)
+(8 rows)
+
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+-- No.16-2-4
+\! sed '/ORDER/i\\ WHERE cl.relname = '"\'pg_toast_1262\'" export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ cl.relname,
+ r.relpages,
+ r.reltuples,
+ r.curpages,
+ r.last_analyze,
+ r.last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ co.stainherit,
+ co.stanullfrac,
+ co.stawidth,
+ co.stadistinct,
+ co.stakind1,
+ co.stakind2,
+ co.stakind3,
+ co.stakind4,
+ co.staop1,
+ co.staop2,
+ co.staop3,
+ co.staop4,
+ co.stanumbers1,
+ co.stanumbers2,
+ co.stanumbers3,
+ co.stanumbers4,
+ co.stavalues1,
+ co.stavalues2,
+ co.stavalues3,
+ co.stavalues4
+ FROM dbms_stats.column_stats_effective co
+ JOIN pg_attribute a
+ ON (co.starelid = a.attrelid AND co.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN dbms_stats.relation_stats_effective r
+ ON co.starelid = r.relid
+ JOIN pg_catalog.pg_class cl
+ ON r.relid = cl.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON cl.relnamespace = n2.oid
+ -- WHERE n2.nspname = 'public'
+ -- AND cl.relname = 'test'
+ -- AND a.attname = 'id'
+ WHERE cl.relname = 'pg_toast_1262'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+---------+---------+----------+-----------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+------------+------------+------------+------------
+(0 rows)
+
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+-- No.16-2-5
+\! sed '/ORDER/i\\ WHERE cl.relname = '"\'st0_idx\'" export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ cl.relname,
+ r.relpages,
+ r.reltuples,
+ r.curpages,
+ r.last_analyze,
+ r.last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ co.stainherit,
+ co.stanullfrac,
+ co.stawidth,
+ co.stadistinct,
+ co.stakind1,
+ co.stakind2,
+ co.stakind3,
+ co.stakind4,
+ co.staop1,
+ co.staop2,
+ co.staop3,
+ co.staop4,
+ co.stanumbers1,
+ co.stanumbers2,
+ co.stanumbers3,
+ co.stanumbers4,
+ co.stavalues1,
+ co.stavalues2,
+ co.stavalues3,
+ co.stavalues4
+ FROM dbms_stats.column_stats_effective co
+ JOIN pg_attribute a
+ ON (co.starelid = a.attrelid AND co.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN dbms_stats.relation_stats_effective r
+ ON co.starelid = r.relid
+ JOIN pg_catalog.pg_class cl
+ ON r.relid = cl.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON cl.relnamespace = n2.oid
+ -- WHERE n2.nspname = 'public'
+ -- AND cl.relname = 'test'
+ -- AND a.attname = 'id'
+ WHERE cl.relname = 'st0_idx'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+---------+---------+----------+-----------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+------------+------------+------------+------------
+ public | st0_idx | 2 | 2 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st0_idx | 2 | 2 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+(2 rows)
+
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+-- No.16-2-6
+\! sed '/ORDER/i\\ WHERE cl.relname = '"\'ss0\'" export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ cl.relname,
+ r.relpages,
+ r.reltuples,
+ r.curpages,
+ r.last_analyze,
+ r.last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ co.stainherit,
+ co.stanullfrac,
+ co.stawidth,
+ co.stadistinct,
+ co.stakind1,
+ co.stakind2,
+ co.stakind3,
+ co.stakind4,
+ co.staop1,
+ co.staop2,
+ co.staop3,
+ co.staop4,
+ co.stanumbers1,
+ co.stanumbers2,
+ co.stanumbers3,
+ co.stanumbers4,
+ co.stavalues1,
+ co.stavalues2,
+ co.stavalues3,
+ co.stavalues4
+ FROM dbms_stats.column_stats_effective co
+ JOIN pg_attribute a
+ ON (co.starelid = a.attrelid AND co.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN dbms_stats.relation_stats_effective r
+ ON co.starelid = r.relid
+ JOIN pg_catalog.pg_class cl
+ ON r.relid = cl.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON cl.relnamespace = n2.oid
+ -- WHERE n2.nspname = 'public'
+ -- AND cl.relname = 'test'
+ -- AND a.attname = 'id'
+ WHERE cl.relname = 'ss0'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+---------+---------+----------+-----------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+------------+------------+------------+------------
+(0 rows)
+
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+-- No.16-2-7
+\! sed '/ORDER/i\\ WHERE cl.relname = '"\'sc0\'" export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ cl.relname,
+ r.relpages,
+ r.reltuples,
+ r.curpages,
+ r.last_analyze,
+ r.last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ co.stainherit,
+ co.stanullfrac,
+ co.stawidth,
+ co.stadistinct,
+ co.stakind1,
+ co.stakind2,
+ co.stakind3,
+ co.stakind4,
+ co.staop1,
+ co.staop2,
+ co.staop3,
+ co.staop4,
+ co.stanumbers1,
+ co.stanumbers2,
+ co.stanumbers3,
+ co.stanumbers4,
+ co.stavalues1,
+ co.stavalues2,
+ co.stavalues3,
+ co.stavalues4
+ FROM dbms_stats.column_stats_effective co
+ JOIN pg_attribute a
+ ON (co.starelid = a.attrelid AND co.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN dbms_stats.relation_stats_effective r
+ ON co.starelid = r.relid
+ JOIN pg_catalog.pg_class cl
+ ON r.relid = cl.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON cl.relnamespace = n2.oid
+ -- WHERE n2.nspname = 'public'
+ -- AND cl.relname = 'test'
+ -- AND a.attname = 'id'
+ WHERE cl.relname = 'sc0'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+---------+---------+----------+-----------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+------------+------------+------------+------------
+(0 rows)
+
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+-- No.16-2-8
+\! sed '/ORDER/i\\ WHERE cl.relname = '"\'sft0\'" export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ cl.relname,
+ r.relpages,
+ r.reltuples,
+ r.curpages,
+ r.last_analyze,
+ r.last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ co.stainherit,
+ co.stanullfrac,
+ co.stawidth,
+ co.stadistinct,
+ co.stakind1,
+ co.stakind2,
+ co.stakind3,
+ co.stakind4,
+ co.staop1,
+ co.staop2,
+ co.staop3,
+ co.staop4,
+ co.stanumbers1,
+ co.stanumbers2,
+ co.stanumbers3,
+ co.stanumbers4,
+ co.stavalues1,
+ co.stavalues2,
+ co.stavalues3,
+ co.stavalues4
+ FROM dbms_stats.column_stats_effective co
+ JOIN pg_attribute a
+ ON (co.starelid = a.attrelid AND co.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN dbms_stats.relation_stats_effective r
+ ON co.starelid = r.relid
+ JOIN pg_catalog.pg_class cl
+ ON r.relid = cl.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON cl.relnamespace = n2.oid
+ -- WHERE n2.nspname = 'public'
+ -- AND cl.relname = 'test'
+ -- AND a.attname = 'id'
+ WHERE cl.relname = 'sft0'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+---------+---------+----------+-----------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+------------+------------+------------+------------
+(0 rows)
+
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+-- No.16-2-9
+\! sed '/ORDER/i\\ WHERE n2.nspname = '"\'s0\'"' AND a.attname = '"\'id\'" export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ cl.relname,
+ r.relpages,
+ r.reltuples,
+ r.curpages,
+ r.last_analyze,
+ r.last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ co.stainherit,
+ co.stanullfrac,
+ co.stawidth,
+ co.stadistinct,
+ co.stakind1,
+ co.stakind2,
+ co.stakind3,
+ co.stakind4,
+ co.staop1,
+ co.staop2,
+ co.staop3,
+ co.staop4,
+ co.stanumbers1,
+ co.stanumbers2,
+ co.stanumbers3,
+ co.stanumbers4,
+ co.stavalues1,
+ co.stavalues2,
+ co.stavalues3,
+ co.stavalues4
+ FROM dbms_stats.column_stats_effective co
+ JOIN pg_attribute a
+ ON (co.starelid = a.attrelid AND co.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN dbms_stats.relation_stats_effective r
+ ON co.starelid = r.relid
+ JOIN pg_catalog.pg_class cl
+ ON r.relid = cl.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON cl.relnamespace = n2.oid
+ -- WHERE n2.nspname = 'public'
+ -- AND cl.relname = 'test'
+ -- AND a.attname = 'id'
+ WHERE n2.nspname = 's0' AND a.attname = 'id'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+---------+---------+----------+-----------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------+------------+------------
+ s0 | st0 | 1 | 2 | 1 | id | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2} | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | id | pg_catalog | int4 | -1 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 97 | 97 | 0 | 0 | (null) | {1} | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null)
+ s0 | st1 | 1 | 3 | 1 | id | pg_catalog | int4 | -1 | f | -1 | -1 | -1 | 2 | 3 | 4 | 1 | 22 | 23 | 24 | 21 | {-1,22} | {-1,23} | {-1,24} | {-1,21} | (null) | (null) | {4,5,6} | (null)
+ s0 | st2 | 1 | 3 | 1 | id | pg_catalog | int4 | -1 | f | -1 | -1 | -1 | 2 | 3 | 4 | 1 | 22 | 23 | 24 | 21 | {-1,22} | {-1,23} | {-1,24} | {-1,21} | (null) | (null) | {1,2,3} | (null)
+(4 rows)
+
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+-- No.16-2-10
+\! sed '/ORDER/i\\ WHERE n2.nspname = '"\'s0\'"' AND a.attname IS NULL' export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ cl.relname,
+ r.relpages,
+ r.reltuples,
+ r.curpages,
+ r.last_analyze,
+ r.last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ co.stainherit,
+ co.stanullfrac,
+ co.stawidth,
+ co.stadistinct,
+ co.stakind1,
+ co.stakind2,
+ co.stakind3,
+ co.stakind4,
+ co.staop1,
+ co.staop2,
+ co.staop3,
+ co.staop4,
+ co.stanumbers1,
+ co.stanumbers2,
+ co.stanumbers3,
+ co.stanumbers4,
+ co.stavalues1,
+ co.stavalues2,
+ co.stavalues3,
+ co.stavalues4
+ FROM dbms_stats.column_stats_effective co
+ JOIN pg_attribute a
+ ON (co.starelid = a.attrelid AND co.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN dbms_stats.relation_stats_effective r
+ ON co.starelid = r.relid
+ JOIN pg_catalog.pg_class cl
+ ON r.relid = cl.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON cl.relnamespace = n2.oid
+ -- WHERE n2.nspname = 'public'
+ -- AND cl.relname = 'test'
+ -- AND a.attname = 'id'
+ WHERE n2.nspname = 's0' AND a.attname IS NULL
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+---------+---------+----------+-----------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+------------+------------+------------+------------
+ s0 | st0_idx | 2 | 2 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st1_idx | 2 | 3 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st2_idx | 2 | 3 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st3 | 0 | 0 | 0 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+(4 rows)
+
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+-- No.16-2-11
+\! sed '/ORDER/i\\ WHERE n2.nspname = '"\'s0\'"' AND cl.relname IS NULL' export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ cl.relname,
+ r.relpages,
+ r.reltuples,
+ r.curpages,
+ r.last_analyze,
+ r.last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ co.stainherit,
+ co.stanullfrac,
+ co.stawidth,
+ co.stadistinct,
+ co.stakind1,
+ co.stakind2,
+ co.stakind3,
+ co.stakind4,
+ co.staop1,
+ co.staop2,
+ co.staop3,
+ co.staop4,
+ co.stanumbers1,
+ co.stanumbers2,
+ co.stanumbers3,
+ co.stanumbers4,
+ co.stavalues1,
+ co.stavalues2,
+ co.stavalues3,
+ co.stavalues4
+ FROM dbms_stats.column_stats_effective co
+ JOIN pg_attribute a
+ ON (co.starelid = a.attrelid AND co.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN dbms_stats.relation_stats_effective r
+ ON co.starelid = r.relid
+ JOIN pg_catalog.pg_class cl
+ ON r.relid = cl.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON cl.relnamespace = n2.oid
+ -- WHERE n2.nspname = 'public'
+ -- AND cl.relname = 'test'
+ -- AND a.attname = 'id'
+ WHERE n2.nspname = 's0' AND cl.relname IS NULL
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | staop1 | staop2 | staop3 | staop4 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stavalues1 | stavalues2 | stavalues3 | stavalues4
+---------+---------+----------+-----------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+------------+------------+------------+------------
+(0 rows)
+
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+/*
+ * Stab function dbms_stats.import
+ */
+ALTER FUNCTION dbms_stats.import(
+ nspname text,
+ relid regclass,
+ attname text,
+ src text
+) RENAME TO truth_import;
+CREATE FUNCTION dbms_stats.import(
+ nspname text,
+ relid regclass,
+ attname text,
+ src text
+) RETURNS void AS
+$$
+BEGIN
+ RAISE NOTICE 'arguments are "%", "%", "%", "%"', $1, $2, $3, $4;
+ RETURN;
+END
+$$
+LANGUAGE plpgsql;
+/*
+ * No.17-1 dbms_stats.import_database_stats(src)
+ */
+-- No.17-1-1
+SELECT dbms_stats.import_database_stats('@abs_srcdir@/export_stats.dmp');
+NOTICE: arguments are "<NULL>", "<NULL>", "<NULL>", "@abs_srcdir@/export_stats.dmp"
+ import_database_stats
+-----------------------
+
+(1 row)
+
+/*
+ * No.17-2 dbms_stats.import_schema_stats(schemaname, src)
+ */
+-- No.17-2-1
+SELECT dbms_stats.import_schema_stats('s0', '@abs_srcdir@/export_stats.dmp');
+NOTICE: arguments are "s0", "<NULL>", "<NULL>", "@abs_srcdir@/export_stats.dmp"
+ import_schema_stats
+---------------------
+
+(1 row)
+
+/*
+ * No.17-3 dbms_stats.import_table_stats(relid, src)
+ */
+-- No.17-3-1
+SELECT dbms_stats.import_table_stats('s0.st0', '@abs_srcdir@/export_stats.dmp');
+NOTICE: arguments are "<NULL>", "s0.st0", "<NULL>", "@abs_srcdir@/export_stats.dmp"
+ import_table_stats
+--------------------
+
+(1 row)
+
+/*
+ * No.17-4 dbms_stats.import_table_stats(schemaname, tablename, src)
+ */
+-- No.17-4-1
+SELECT dbms_stats.import_table_stats('s0', 'st0', '@abs_srcdir@/export_stats.dmp');
+NOTICE: arguments are "<NULL>", "s0.st0", "<NULL>", "@abs_srcdir@/export_stats.dmp"
+ import_table_stats
+--------------------
+
+(1 row)
+
+/*
+ * No.17-5 dbms_stats.import_column_stats (relid, attname, src)
+ */
+-- No.17-5-1
+SELECT dbms_stats.import_column_stats('s0.st0', 'id', '@abs_srcdir@/export_stats.dmp');
+NOTICE: arguments are "<NULL>", "s0.st0", "id", "@abs_srcdir@/export_stats.dmp"
+ import_column_stats
+---------------------
+
+(1 row)
+
+/*
+ * No.17-6 dbms_stats.import_column_stats (schemaname, tablename, attname, src)
+ */
+-- No.17-6-1
+SELECT dbms_stats.import_column_stats('s0', 'st0', 'id','@abs_srcdir@/export_stats.dmp');
+NOTICE: arguments are "<NULL>", "s0.st0", "id", "@abs_srcdir@/export_stats.dmp"
+ import_column_stats
+---------------------
+
+(1 row)
+
+/*
+ * Delete stab function dbms_stats.import
+ */
+DROP FUNCTION dbms_stats.import(
+ nspname text,
+ relid regclass,
+ attname text,
+ src text
+);
+ALTER FUNCTION dbms_stats.truth_import(
+ nspname text,
+ relid regclass,
+ attname text,
+ src text
+) RENAME TO import;
--- /dev/null
+\pset null '(null)'
+CREATE TABLE s0.st3();
+/*
+ * No.16-1 export_plain_stats.sql.sample
+ */
+-- No.16-1-1
+ANALYZE;
+DELETE FROM dbms_stats._column_stats_locked;
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+ s0.st3
+(16 rows)
+
+UPDATE dbms_stats._relation_stats_locked
+ SET (relpages, reltuples, relallvisible, curpages) = (0,0,0,0);
+UPDATE dbms_stats._column_stats_locked SET
+ stanullfrac = -staattnum,
+ stawidth = -staattnum,
+ stadistinct = -staattnum,
+ stakind1 = 2,
+ stakind2 = 3,
+ stakind3 = 4,
+ stakind4 = 1,
+ stakind5 = 5,
+ staop1 = 22,
+ staop2 = 23,
+ staop3 = 24,
+ staop4 = 21,
+ staop5 = 25,
+ stanumbers1 = ARRAY[-staattnum,22],
+ stanumbers2 = ARRAY[-staattnum,23],
+ stanumbers3 = ARRAY[-staattnum,24],
+ stanumbers4 = ARRAY[-staattnum,21],
+ stanumbers5 = ARRAY[-staattnum,25],
+ stavalues1 = stavalues3,
+ stavalues2 = stavalues2,
+ stavalues3 = stavalues1,
+ stavalues4 = stavalues4,
+ stavalues5 = stavalues5;
+\i export_plain_stats.sql.sample
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ c.relname,
+ c.relpages,
+ c.reltuples,
+ c.relallvisible,
+ (pg_relation_size(c.oid) / current_setting('block_size')::int4)::int4
+ AS curpages,
+ pg_catalog.pg_stat_get_last_analyze_time(c.oid)
+ AS last_analyze,
+ pg_catalog.pg_stat_get_last_autoanalyze_time(c.oid)
+ AS last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ s.stainherit,
+ s.stanullfrac,
+ s.stawidth,
+ s.stadistinct,
+ s.stakind1,
+ s.stakind2,
+ s.stakind3,
+ s.stakind4,
+ s.stakind5,
+ s.staop1,
+ s.staop2,
+ s.staop3,
+ s.staop4,
+ s.staop5,
+ s.stanumbers1,
+ s.stanumbers2,
+ s.stanumbers3,
+ s.stanumbers4,
+ s.stanumbers5,
+ s.stavalues1,
+ s.stavalues2,
+ s.stavalues3,
+ s.stavalues4,
+ s.stavalues5
+ FROM pg_statistic s
+ JOIN pg_attribute a
+ ON (s.starelid = a.attrelid AND s.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN pg_catalog.pg_class c
+ ON s.starelid = c.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON c.relnamespace = n2.oid
+ WHERE c.relkind IN ('r', 'i', 'f')
+ AND NOT n2.nspname IN ('pg_catalog',
+ 'pg_toast',
+ 'information_schema',
+ 'dbms_stats')
+ -- AND n2.nspname = 'public'
+ -- AND c.relname = 'test'
+ -- AND a.attname = 'id'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | relallvisible | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+---------+---------+----------+-----------+---------------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+------------------------+-------------+-------------+-------------+-------------+------------------+------------+------------+------------+------------
+ public | pt0 | 0 | 0 | 0 | 0 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ public | pt0_idx | 2 | 0 | 0 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ public | st0 | 1 | 2 | 1 | 1 | id | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2} | (null) | (null) | (null) | (null)
+ public | st0 | 1 | 2 | 1 | 1 | name | pg_catalog | bpchar | 9 | f | 0 | 6 | -0.5 | 1 | 3 | 0 | 0 | 0 | 1054 | 1058 | 0 | 0 | 0 | {1} | {1} | (null) | (null) | (null) | {"test "} | (null) | (null) | (null) | (null)
+ public | st0_idx | 2 | 2 | 0 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ public | st1 | 45 | 10000 | 45 | 45 | str | pg_catalog | text | -1 | f | 0 | 2 | 3 | 1 | 3 | 0 | 0 | 0 | 98 | 664 | 0 | 0 | 0 | {0.3334,0.3333,0.3333} | {0.3332} | (null) | (null) | (null) | {1,0,2} | (null) | (null) | (null) | (null)
+ public | st1 | 45 | 10000 | 45 | 45 | val | pg_catalog | int4 | -1 | f | 0 | 4 | 3 | 1 | 3 | 0 | 0 | 0 | 96 | 97 | 0 | 0 | 0 | {0.3334,0.3333,0.3333} | {0.3332} | (null) | (null) | (null) | {1,0,2} | (null) | (null) | (null) | (null)
+ public | st1_exp | 30 | 10000 | 0 | 30 | lower | pg_catalog | text | -1 | f | 0 | 5 | 3 | 1 | 3 | 0 | 0 | 0 | 98 | 664 | 0 | 0 | 0 | {0.3334,0.3333,0.3333} | {0.3332} | (null) | (null) | (null) | {1,0,2} | (null) | (null) | (null) | (null)
+ public | st1_idx | 30 | 10000 | 0 | 30 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | sft0 | 0 | 0 | 0 | 0 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | 1 | id | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2} | (null) | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | 1 | id | pg_catalog | int4 | -1 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | 1 | num | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {10,20} | (null) | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | 1 | num | pg_catalog | int4 | -1 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {10,20,40,50,60} | (null) | (null) | (null) | (null)
+ s0 | st0_idx | 2 | 2 | 0 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st1 | 1 | 3 | 1 | 1 | id | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {4,5,6} | (null) | (null) | (null) | (null)
+ s0 | st1 | 1 | 3 | 1 | 1 | num | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {40,50,60} | (null) | (null) | (null) | (null)
+ s0 | st1_idx | 2 | 3 | 0 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st2 | 1 | 3 | 1 | 1 | id | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2,3} | (null) | (null) | (null) | (null)
+ s0 | st2 | 1 | 3 | 1 | 1 | txt | pg_catalog | text | -1 | f | 0 | 5 | -1 | 2 | 3 | 0 | 0 | 0 | 664 | 664 | 0 | 0 | 0 | (null) | {0.5} | (null) | (null) | (null) | {1,comment,test} | (null) | (null) | (null) | (null)
+ s0 | st2_idx | 2 | 3 | 0 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st3 | 0 | 0 | 0 | 0 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s1 | st0 | 1 | 4 | 1 | 1 | id | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2,3,4} | (null) | (null) | (null) | (null)
+ s1 | st0 | 1 | 4 | 1 | 1 | num | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {15,25,35,45} | (null) | (null) | (null) | (null)
+(24 rows)
+
+TRUNCATE dbms_stats.work;
+-- No.16-1-2
+\! sed '/ORDER/i\\ AND n2.nspname = '"\'s0\'" export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ c.relname,
+ c.relpages,
+ c.reltuples,
+ c.relallvisible,
+ (pg_relation_size(c.oid) / current_setting('block_size')::int4)::int4
+ AS curpages,
+ pg_catalog.pg_stat_get_last_analyze_time(c.oid)
+ AS last_analyze,
+ pg_catalog.pg_stat_get_last_autoanalyze_time(c.oid)
+ AS last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ s.stainherit,
+ s.stanullfrac,
+ s.stawidth,
+ s.stadistinct,
+ s.stakind1,
+ s.stakind2,
+ s.stakind3,
+ s.stakind4,
+ s.stakind5,
+ s.staop1,
+ s.staop2,
+ s.staop3,
+ s.staop4,
+ s.staop5,
+ s.stanumbers1,
+ s.stanumbers2,
+ s.stanumbers3,
+ s.stanumbers4,
+ s.stanumbers5,
+ s.stavalues1,
+ s.stavalues2,
+ s.stavalues3,
+ s.stavalues4,
+ s.stavalues5
+ FROM pg_statistic s
+ JOIN pg_attribute a
+ ON (s.starelid = a.attrelid AND s.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN pg_catalog.pg_class c
+ ON s.starelid = c.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON c.relnamespace = n2.oid
+ WHERE c.relkind IN ('r', 'i', 'f')
+ AND NOT n2.nspname IN ('pg_catalog',
+ 'pg_toast',
+ 'information_schema',
+ 'dbms_stats')
+ -- AND n2.nspname = 'public'
+ -- AND c.relname = 'test'
+ -- AND a.attname = 'id'
+ AND n2.nspname = 's0'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | relallvisible | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+---------+---------+----------+-----------+---------------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------------+------------+------------+------------+------------
+ s0 | sft0 | 0 | 0 | 0 | 0 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | 1 | id | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2} | (null) | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | 1 | id | pg_catalog | int4 | -1 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | 1 | num | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {10,20} | (null) | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | 1 | num | pg_catalog | int4 | -1 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {10,20,40,50,60} | (null) | (null) | (null) | (null)
+ s0 | st0_idx | 2 | 2 | 0 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st1 | 1 | 3 | 1 | 1 | id | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {4,5,6} | (null) | (null) | (null) | (null)
+ s0 | st1 | 1 | 3 | 1 | 1 | num | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {40,50,60} | (null) | (null) | (null) | (null)
+ s0 | st1_idx | 2 | 3 | 0 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st2 | 1 | 3 | 1 | 1 | id | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2,3} | (null) | (null) | (null) | (null)
+ s0 | st2 | 1 | 3 | 1 | 1 | txt | pg_catalog | text | -1 | f | 0 | 5 | -1 | 2 | 3 | 0 | 0 | 0 | 664 | 664 | 0 | 0 | 0 | (null) | {0.5} | (null) | (null) | (null) | {1,comment,test} | (null) | (null) | (null) | (null)
+ s0 | st2_idx | 2 | 3 | 0 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st3 | 0 | 0 | 0 | 0 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+(13 rows)
+
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+-- No.16-1-3
+\! sed '/ORDER/i\\ AND c.relname = '"\'st0\'" export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ c.relname,
+ c.relpages,
+ c.reltuples,
+ c.relallvisible,
+ (pg_relation_size(c.oid) / current_setting('block_size')::int4)::int4
+ AS curpages,
+ pg_catalog.pg_stat_get_last_analyze_time(c.oid)
+ AS last_analyze,
+ pg_catalog.pg_stat_get_last_autoanalyze_time(c.oid)
+ AS last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ s.stainherit,
+ s.stanullfrac,
+ s.stawidth,
+ s.stadistinct,
+ s.stakind1,
+ s.stakind2,
+ s.stakind3,
+ s.stakind4,
+ s.stakind5,
+ s.staop1,
+ s.staop2,
+ s.staop3,
+ s.staop4,
+ s.staop5,
+ s.stanumbers1,
+ s.stanumbers2,
+ s.stanumbers3,
+ s.stanumbers4,
+ s.stanumbers5,
+ s.stavalues1,
+ s.stavalues2,
+ s.stavalues3,
+ s.stavalues4,
+ s.stavalues5
+ FROM pg_statistic s
+ JOIN pg_attribute a
+ ON (s.starelid = a.attrelid AND s.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN pg_catalog.pg_class c
+ ON s.starelid = c.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON c.relnamespace = n2.oid
+ WHERE c.relkind IN ('r', 'i', 'f')
+ AND NOT n2.nspname IN ('pg_catalog',
+ 'pg_toast',
+ 'information_schema',
+ 'dbms_stats')
+ -- AND n2.nspname = 'public'
+ -- AND c.relname = 'test'
+ -- AND a.attname = 'id'
+ AND c.relname = 'st0'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | relallvisible | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+---------+---------+----------+-----------+---------------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------------+------------+------------+------------+------------
+ public | st0 | 1 | 2 | 1 | 1 | id | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2} | (null) | (null) | (null) | (null)
+ public | st0 | 1 | 2 | 1 | 1 | name | pg_catalog | bpchar | 9 | f | 0 | 6 | -0.5 | 1 | 3 | 0 | 0 | 0 | 1054 | 1058 | 0 | 0 | 0 | {1} | {1} | (null) | (null) | (null) | {"test "} | (null) | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | 1 | id | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2} | (null) | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | 1 | id | pg_catalog | int4 | -1 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | 1 | num | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {10,20} | (null) | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | 1 | num | pg_catalog | int4 | -1 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {10,20,40,50,60} | (null) | (null) | (null) | (null)
+ s1 | st0 | 1 | 4 | 1 | 1 | id | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2,3,4} | (null) | (null) | (null) | (null)
+ s1 | st0 | 1 | 4 | 1 | 1 | num | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {15,25,35,45} | (null) | (null) | (null) | (null)
+(8 rows)
+
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+-- No.16-1-4
+\! sed '/ORDER/i\\ AND c.relname = '"\'pg_toast_1262\'" export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ c.relname,
+ c.relpages,
+ c.reltuples,
+ c.relallvisible,
+ (pg_relation_size(c.oid) / current_setting('block_size')::int4)::int4
+ AS curpages,
+ pg_catalog.pg_stat_get_last_analyze_time(c.oid)
+ AS last_analyze,
+ pg_catalog.pg_stat_get_last_autoanalyze_time(c.oid)
+ AS last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ s.stainherit,
+ s.stanullfrac,
+ s.stawidth,
+ s.stadistinct,
+ s.stakind1,
+ s.stakind2,
+ s.stakind3,
+ s.stakind4,
+ s.stakind5,
+ s.staop1,
+ s.staop2,
+ s.staop3,
+ s.staop4,
+ s.staop5,
+ s.stanumbers1,
+ s.stanumbers2,
+ s.stanumbers3,
+ s.stanumbers4,
+ s.stanumbers5,
+ s.stavalues1,
+ s.stavalues2,
+ s.stavalues3,
+ s.stavalues4,
+ s.stavalues5
+ FROM pg_statistic s
+ JOIN pg_attribute a
+ ON (s.starelid = a.attrelid AND s.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN pg_catalog.pg_class c
+ ON s.starelid = c.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON c.relnamespace = n2.oid
+ WHERE c.relkind IN ('r', 'i', 'f')
+ AND NOT n2.nspname IN ('pg_catalog',
+ 'pg_toast',
+ 'information_schema',
+ 'dbms_stats')
+ -- AND n2.nspname = 'public'
+ -- AND c.relname = 'test'
+ -- AND a.attname = 'id'
+ AND c.relname = 'pg_toast_1262'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | relallvisible | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+---------+---------+----------+-----------+---------------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------+------------+------------+------------+------------
+(0 rows)
+
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+-- No.16-1-5
+\! sed '/ORDER/i\\ AND c.relname = '"\'st0_idx\'" export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ c.relname,
+ c.relpages,
+ c.reltuples,
+ c.relallvisible,
+ (pg_relation_size(c.oid) / current_setting('block_size')::int4)::int4
+ AS curpages,
+ pg_catalog.pg_stat_get_last_analyze_time(c.oid)
+ AS last_analyze,
+ pg_catalog.pg_stat_get_last_autoanalyze_time(c.oid)
+ AS last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ s.stainherit,
+ s.stanullfrac,
+ s.stawidth,
+ s.stadistinct,
+ s.stakind1,
+ s.stakind2,
+ s.stakind3,
+ s.stakind4,
+ s.stakind5,
+ s.staop1,
+ s.staop2,
+ s.staop3,
+ s.staop4,
+ s.staop5,
+ s.stanumbers1,
+ s.stanumbers2,
+ s.stanumbers3,
+ s.stanumbers4,
+ s.stanumbers5,
+ s.stavalues1,
+ s.stavalues2,
+ s.stavalues3,
+ s.stavalues4,
+ s.stavalues5
+ FROM pg_statistic s
+ JOIN pg_attribute a
+ ON (s.starelid = a.attrelid AND s.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN pg_catalog.pg_class c
+ ON s.starelid = c.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON c.relnamespace = n2.oid
+ WHERE c.relkind IN ('r', 'i', 'f')
+ AND NOT n2.nspname IN ('pg_catalog',
+ 'pg_toast',
+ 'information_schema',
+ 'dbms_stats')
+ -- AND n2.nspname = 'public'
+ -- AND c.relname = 'test'
+ -- AND a.attname = 'id'
+ AND c.relname = 'st0_idx'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | relallvisible | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+---------+---------+----------+-----------+---------------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------+------------+------------+------------+------------
+ public | st0_idx | 2 | 2 | 0 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st0_idx | 2 | 2 | 0 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+(2 rows)
+
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+-- No.16-1-6
+\! sed '/ORDER/i\\ AND c.relname = '"\'ss0\'" export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ c.relname,
+ c.relpages,
+ c.reltuples,
+ c.relallvisible,
+ (pg_relation_size(c.oid) / current_setting('block_size')::int4)::int4
+ AS curpages,
+ pg_catalog.pg_stat_get_last_analyze_time(c.oid)
+ AS last_analyze,
+ pg_catalog.pg_stat_get_last_autoanalyze_time(c.oid)
+ AS last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ s.stainherit,
+ s.stanullfrac,
+ s.stawidth,
+ s.stadistinct,
+ s.stakind1,
+ s.stakind2,
+ s.stakind3,
+ s.stakind4,
+ s.stakind5,
+ s.staop1,
+ s.staop2,
+ s.staop3,
+ s.staop4,
+ s.staop5,
+ s.stanumbers1,
+ s.stanumbers2,
+ s.stanumbers3,
+ s.stanumbers4,
+ s.stanumbers5,
+ s.stavalues1,
+ s.stavalues2,
+ s.stavalues3,
+ s.stavalues4,
+ s.stavalues5
+ FROM pg_statistic s
+ JOIN pg_attribute a
+ ON (s.starelid = a.attrelid AND s.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN pg_catalog.pg_class c
+ ON s.starelid = c.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON c.relnamespace = n2.oid
+ WHERE c.relkind IN ('r', 'i', 'f')
+ AND NOT n2.nspname IN ('pg_catalog',
+ 'pg_toast',
+ 'information_schema',
+ 'dbms_stats')
+ -- AND n2.nspname = 'public'
+ -- AND c.relname = 'test'
+ -- AND a.attname = 'id'
+ AND c.relname = 'ss0'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | relallvisible | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+---------+---------+----------+-----------+---------------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------+------------+------------+------------+------------
+(0 rows)
+
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+-- No.16-1-7
+\! sed '/ORDER/i\\ AND c.relname = '"\'sc0\'" export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ c.relname,
+ c.relpages,
+ c.reltuples,
+ c.relallvisible,
+ (pg_relation_size(c.oid) / current_setting('block_size')::int4)::int4
+ AS curpages,
+ pg_catalog.pg_stat_get_last_analyze_time(c.oid)
+ AS last_analyze,
+ pg_catalog.pg_stat_get_last_autoanalyze_time(c.oid)
+ AS last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ s.stainherit,
+ s.stanullfrac,
+ s.stawidth,
+ s.stadistinct,
+ s.stakind1,
+ s.stakind2,
+ s.stakind3,
+ s.stakind4,
+ s.stakind5,
+ s.staop1,
+ s.staop2,
+ s.staop3,
+ s.staop4,
+ s.staop5,
+ s.stanumbers1,
+ s.stanumbers2,
+ s.stanumbers3,
+ s.stanumbers4,
+ s.stanumbers5,
+ s.stavalues1,
+ s.stavalues2,
+ s.stavalues3,
+ s.stavalues4,
+ s.stavalues5
+ FROM pg_statistic s
+ JOIN pg_attribute a
+ ON (s.starelid = a.attrelid AND s.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN pg_catalog.pg_class c
+ ON s.starelid = c.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON c.relnamespace = n2.oid
+ WHERE c.relkind IN ('r', 'i', 'f')
+ AND NOT n2.nspname IN ('pg_catalog',
+ 'pg_toast',
+ 'information_schema',
+ 'dbms_stats')
+ -- AND n2.nspname = 'public'
+ -- AND c.relname = 'test'
+ -- AND a.attname = 'id'
+ AND c.relname = 'sc0'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | relallvisible | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+---------+---------+----------+-----------+---------------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------+------------+------------+------------+------------
+(0 rows)
+
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+-- No.16-1-8
+\! sed '/ORDER/i\\ AND c.relname = '"\'sft0\'" export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ c.relname,
+ c.relpages,
+ c.reltuples,
+ c.relallvisible,
+ (pg_relation_size(c.oid) / current_setting('block_size')::int4)::int4
+ AS curpages,
+ pg_catalog.pg_stat_get_last_analyze_time(c.oid)
+ AS last_analyze,
+ pg_catalog.pg_stat_get_last_autoanalyze_time(c.oid)
+ AS last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ s.stainherit,
+ s.stanullfrac,
+ s.stawidth,
+ s.stadistinct,
+ s.stakind1,
+ s.stakind2,
+ s.stakind3,
+ s.stakind4,
+ s.stakind5,
+ s.staop1,
+ s.staop2,
+ s.staop3,
+ s.staop4,
+ s.staop5,
+ s.stanumbers1,
+ s.stanumbers2,
+ s.stanumbers3,
+ s.stanumbers4,
+ s.stanumbers5,
+ s.stavalues1,
+ s.stavalues2,
+ s.stavalues3,
+ s.stavalues4,
+ s.stavalues5
+ FROM pg_statistic s
+ JOIN pg_attribute a
+ ON (s.starelid = a.attrelid AND s.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN pg_catalog.pg_class c
+ ON s.starelid = c.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON c.relnamespace = n2.oid
+ WHERE c.relkind IN ('r', 'i', 'f')
+ AND NOT n2.nspname IN ('pg_catalog',
+ 'pg_toast',
+ 'information_schema',
+ 'dbms_stats')
+ -- AND n2.nspname = 'public'
+ -- AND c.relname = 'test'
+ -- AND a.attname = 'id'
+ AND c.relname = 'sft0'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | relallvisible | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+---------+---------+----------+-----------+---------------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------+------------+------------+------------+------------
+ s0 | sft0 | 0 | 0 | 0 | 0 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+(1 row)
+
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+-- No.16-1-9
+\! sed '/ORDER/i\\ AND n2.nspname = '"\'s0\'"' AND a.attname = '\'id\' export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ c.relname,
+ c.relpages,
+ c.reltuples,
+ c.relallvisible,
+ (pg_relation_size(c.oid) / current_setting('block_size')::int4)::int4
+ AS curpages,
+ pg_catalog.pg_stat_get_last_analyze_time(c.oid)
+ AS last_analyze,
+ pg_catalog.pg_stat_get_last_autoanalyze_time(c.oid)
+ AS last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ s.stainherit,
+ s.stanullfrac,
+ s.stawidth,
+ s.stadistinct,
+ s.stakind1,
+ s.stakind2,
+ s.stakind3,
+ s.stakind4,
+ s.stakind5,
+ s.staop1,
+ s.staop2,
+ s.staop3,
+ s.staop4,
+ s.staop5,
+ s.stanumbers1,
+ s.stanumbers2,
+ s.stanumbers3,
+ s.stanumbers4,
+ s.stanumbers5,
+ s.stavalues1,
+ s.stavalues2,
+ s.stavalues3,
+ s.stavalues4,
+ s.stavalues5
+ FROM pg_statistic s
+ JOIN pg_attribute a
+ ON (s.starelid = a.attrelid AND s.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN pg_catalog.pg_class c
+ ON s.starelid = c.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON c.relnamespace = n2.oid
+ WHERE c.relkind IN ('r', 'i', 'f')
+ AND NOT n2.nspname IN ('pg_catalog',
+ 'pg_toast',
+ 'information_schema',
+ 'dbms_stats')
+ -- AND n2.nspname = 'public'
+ -- AND c.relname = 'test'
+ -- AND a.attname = 'id'
+ AND n2.nspname = 's0' AND a.attname = 'id'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | relallvisible | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+---------+---------+----------+-----------+---------------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+-------------+------------+------------+------------+------------
+ s0 | st0 | 1 | 2 | 1 | 1 | id | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2} | (null) | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | 1 | id | pg_catalog | int4 | -1 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null) | (null)
+ s0 | st1 | 1 | 3 | 1 | 1 | id | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {4,5,6} | (null) | (null) | (null) | (null)
+ s0 | st2 | 1 | 3 | 1 | 1 | id | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2,3} | (null) | (null) | (null) | (null)
+(4 rows)
+
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+-- No.16-1-10
+\! sed '/ORDER/i\\ AND n2.nspname = '"\'s0\'"' AND a.attname IS NULL' export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ c.relname,
+ c.relpages,
+ c.reltuples,
+ c.relallvisible,
+ (pg_relation_size(c.oid) / current_setting('block_size')::int4)::int4
+ AS curpages,
+ pg_catalog.pg_stat_get_last_analyze_time(c.oid)
+ AS last_analyze,
+ pg_catalog.pg_stat_get_last_autoanalyze_time(c.oid)
+ AS last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ s.stainherit,
+ s.stanullfrac,
+ s.stawidth,
+ s.stadistinct,
+ s.stakind1,
+ s.stakind2,
+ s.stakind3,
+ s.stakind4,
+ s.stakind5,
+ s.staop1,
+ s.staop2,
+ s.staop3,
+ s.staop4,
+ s.staop5,
+ s.stanumbers1,
+ s.stanumbers2,
+ s.stanumbers3,
+ s.stanumbers4,
+ s.stanumbers5,
+ s.stavalues1,
+ s.stavalues2,
+ s.stavalues3,
+ s.stavalues4,
+ s.stavalues5
+ FROM pg_statistic s
+ JOIN pg_attribute a
+ ON (s.starelid = a.attrelid AND s.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN pg_catalog.pg_class c
+ ON s.starelid = c.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON c.relnamespace = n2.oid
+ WHERE c.relkind IN ('r', 'i', 'f')
+ AND NOT n2.nspname IN ('pg_catalog',
+ 'pg_toast',
+ 'information_schema',
+ 'dbms_stats')
+ -- AND n2.nspname = 'public'
+ -- AND c.relname = 'test'
+ -- AND a.attname = 'id'
+ AND n2.nspname = 's0' AND a.attname IS NULL
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | relallvisible | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+---------+---------+----------+-----------+---------------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------+------------+------------+------------+------------
+ s0 | sft0 | 0 | 0 | 0 | 0 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st0_idx | 2 | 2 | 0 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st1_idx | 2 | 3 | 0 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st2_idx | 2 | 3 | 0 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st3 | 0 | 0 | 0 | 0 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+(5 rows)
+
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+-- No.16-1-11
+\! sed '/ORDER/i\\ AND n2.nspname = '"\'s1\'"' AND c.relname IS NULL' export_plain_stats.sql.sample > export_plain_stats.sql.sample_test
+\i export_plain_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ c.relname,
+ c.relpages,
+ c.reltuples,
+ c.relallvisible,
+ (pg_relation_size(c.oid) / current_setting('block_size')::int4)::int4
+ AS curpages,
+ pg_catalog.pg_stat_get_last_analyze_time(c.oid)
+ AS last_analyze,
+ pg_catalog.pg_stat_get_last_autoanalyze_time(c.oid)
+ AS last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ s.stainherit,
+ s.stanullfrac,
+ s.stawidth,
+ s.stadistinct,
+ s.stakind1,
+ s.stakind2,
+ s.stakind3,
+ s.stakind4,
+ s.stakind5,
+ s.staop1,
+ s.staop2,
+ s.staop3,
+ s.staop4,
+ s.staop5,
+ s.stanumbers1,
+ s.stanumbers2,
+ s.stanumbers3,
+ s.stanumbers4,
+ s.stanumbers5,
+ s.stavalues1,
+ s.stavalues2,
+ s.stavalues3,
+ s.stavalues4,
+ s.stavalues5
+ FROM pg_statistic s
+ JOIN pg_attribute a
+ ON (s.starelid = a.attrelid AND s.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN pg_catalog.pg_class c
+ ON s.starelid = c.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON c.relnamespace = n2.oid
+ WHERE c.relkind IN ('r', 'i', 'f')
+ AND NOT n2.nspname IN ('pg_catalog',
+ 'pg_toast',
+ 'information_schema',
+ 'dbms_stats')
+ -- AND n2.nspname = 'public'
+ -- AND c.relname = 'test'
+ -- AND a.attname = 'id'
+ AND n2.nspname = 's1' AND c.relname IS NULL
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | relallvisible | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+---------+---------+----------+-----------+---------------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------+------------+------------+------------+------------
+(0 rows)
+
+TRUNCATE dbms_stats.work;
+\! rm export_plain_stats.sql.sample_test
+/*
+ * No.16-2 export_effective_stats.sql.sample
+ */
+-- No.16-2-1
+VACUUM ANALYZE;
+SELECT dbms_stats.lock_database_stats();
+ lock_database_stats
+---------------------
+ pt0
+ pt0_idx
+ st0
+ st0_idx
+ st1
+ s0.st0
+ s0.st0_idx
+ s0.st1
+ s0.st1_idx
+ s0.st2
+ s0.st2_idx
+ s0.sft0
+ st1_idx
+ st1_exp
+ s1.st0
+ s0.st3
+(16 rows)
+
+UPDATE dbms_stats._relation_stats_locked
+ SET (relpages, reltuples, relallvisible, curpages) = (NULL, NULL, NULL, NULL);
+UPDATE dbms_stats._column_stats_locked
+ SET (stanullfrac, stawidth, stadistinct,
+ stakind1, stakind2, stakind3, stakind4, stakind5,
+ staop1, staop2, staop3, staop4, staop5,
+ stanumbers1, stanumbers2, stanumbers3, stanumbers4, stanumbers5,
+ stavalues1, stavalues2, stavalues3, stavalues4, stavalues5)
+ = (NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL, NULL)
+ WHERE starelid = 's0.st0'::regclass;
+\i export_effective_stats.sql.sample
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ cl.relname,
+ r.relpages,
+ r.reltuples,
+ r.relallvisible,
+ r.curpages,
+ r.last_analyze,
+ r.last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ co.stainherit,
+ co.stanullfrac,
+ co.stawidth,
+ co.stadistinct,
+ co.stakind1,
+ co.stakind2,
+ co.stakind3,
+ co.stakind4,
+ co.stakind5,
+ co.staop1,
+ co.staop2,
+ co.staop3,
+ co.staop4,
+ co.staop5,
+ co.stanumbers1,
+ co.stanumbers2,
+ co.stanumbers3,
+ co.stanumbers4,
+ co.stanumbers5,
+ co.stavalues1,
+ co.stavalues2,
+ co.stavalues3,
+ co.stavalues4,
+ co.stavalues5
+ FROM dbms_stats.column_stats_effective co
+ JOIN pg_attribute a
+ ON (co.starelid = a.attrelid AND co.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN dbms_stats.relation_stats_effective r
+ ON co.starelid = r.relid
+ JOIN pg_catalog.pg_class cl
+ ON r.relid = cl.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON cl.relnamespace = n2.oid
+ -- WHERE n2.nspname = 'public'
+ -- AND cl.relname = 'test'
+ -- AND a.attname = 'id'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | relallvisible | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+---------+---------+----------+-----------+---------------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------------+------------+------------------+------------+------------
+ public | pt0 | 0 | 0 | 0 | 0 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ public | pt0_idx | 2 | 0 | 0 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ public | st0 | 1 | 2 | 1 | 1 | id | pg_catalog | int4 | -1 | f | -1 | -1 | -1 | 2 | 3 | 4 | 1 | 5 | 22 | 23 | 24 | 21 | 25 | {-1,22} | {-1,23} | {-1,24} | {-1,21} | {-1,25} | (null) | (null) | {1,2} | (null) | (null)
+ public | st0 | 1 | 2 | 1 | 1 | name | pg_catalog | bpchar | 9 | f | -2 | -2 | -2 | 2 | 3 | 4 | 1 | 5 | 22 | 23 | 24 | 21 | 25 | {-2,22} | {-2,23} | {-2,24} | {-2,21} | {-2,25} | (null) | (null) | {"test "} | (null) | (null)
+ public | st0_idx | 2 | 2 | 0 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ public | st1 | 45 | 10000 | 45 | 45 | str | pg_catalog | text | -1 | f | -2 | -2 | -2 | 2 | 3 | 4 | 1 | 5 | 22 | 23 | 24 | 21 | 25 | {-2,22} | {-2,23} | {-2,24} | {-2,21} | {-2,25} | (null) | (null) | {1,0,2} | (null) | (null)
+ public | st1 | 45 | 10000 | 45 | 45 | val | pg_catalog | int4 | -1 | f | -1 | -1 | -1 | 2 | 3 | 4 | 1 | 5 | 22 | 23 | 24 | 21 | 25 | {-1,22} | {-1,23} | {-1,24} | {-1,21} | {-1,25} | (null) | (null) | {1,0,2} | (null) | (null)
+ public | st1_exp | 30 | 10000 | 0 | 30 | lower | pg_catalog | text | -1 | f | -1 | -1 | -1 | 2 | 3 | 4 | 1 | 5 | 22 | 23 | 24 | 21 | 25 | {-1,22} | {-1,23} | {-1,24} | {-1,21} | {-1,25} | (null) | (null) | {1,0,2} | (null) | (null)
+ public | st1_idx | 30 | 10000 | 0 | 30 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | sft0 | 0 | 0 | 0 | 0 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | 1 | id | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2} | (null) | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | 1 | id | pg_catalog | int4 | -1 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | 1 | num | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {10,20} | (null) | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | 1 | num | pg_catalog | int4 | -1 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {10,20,40,50,60} | (null) | (null) | (null) | (null)
+ s0 | st0_idx | 2 | 2 | 0 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st1 | 1 | 3 | 1 | 1 | id | pg_catalog | int4 | -1 | f | -1 | -1 | -1 | 2 | 3 | 4 | 1 | 5 | 22 | 23 | 24 | 21 | 25 | {-1,22} | {-1,23} | {-1,24} | {-1,21} | {-1,25} | (null) | (null) | {4,5,6} | (null) | (null)
+ s0 | st1 | 1 | 3 | 1 | 1 | num | pg_catalog | int4 | -1 | f | -2 | -2 | -2 | 2 | 3 | 4 | 1 | 5 | 22 | 23 | 24 | 21 | 25 | {-2,22} | {-2,23} | {-2,24} | {-2,21} | {-2,25} | (null) | (null) | {40,50,60} | (null) | (null)
+ s0 | st1_idx | 2 | 3 | 0 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st2 | 1 | 3 | 1 | 1 | id | pg_catalog | int4 | -1 | f | -1 | -1 | -1 | 2 | 3 | 4 | 1 | 5 | 22 | 23 | 24 | 21 | 25 | {-1,22} | {-1,23} | {-1,24} | {-1,21} | {-1,25} | (null) | (null) | {1,2,3} | (null) | (null)
+ s0 | st2 | 1 | 3 | 1 | 1 | txt | pg_catalog | text | -1 | f | -2 | -2 | -2 | 2 | 3 | 4 | 1 | 5 | 22 | 23 | 24 | 21 | 25 | {-2,22} | {-2,23} | {-2,24} | {-2,21} | {-2,25} | (null) | (null) | {1,comment,test} | (null) | (null)
+ s0 | st2_idx | 2 | 3 | 0 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st3 | 0 | 0 | 0 | 0 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s1 | st0 | 1 | 4 | 1 | 1 | id | pg_catalog | int4 | -1 | f | -1 | -1 | -1 | 2 | 3 | 4 | 1 | 5 | 22 | 23 | 24 | 21 | 25 | {-1,22} | {-1,23} | {-1,24} | {-1,21} | {-1,25} | (null) | (null) | {1,2,3,4} | (null) | (null)
+ s1 | st0 | 1 | 4 | 1 | 1 | num | pg_catalog | int4 | -1 | f | -2 | -2 | -2 | 2 | 3 | 4 | 1 | 5 | 22 | 23 | 24 | 21 | 25 | {-2,22} | {-2,23} | {-2,24} | {-2,21} | {-2,25} | (null) | (null) | {15,25,35,45} | (null) | (null)
+(24 rows)
+
+TRUNCATE dbms_stats.work;
+-- No.16-2-2
+\! sed '/ORDER/i\\ WHERE n2.nspname = '"\'s0\'" export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ cl.relname,
+ r.relpages,
+ r.reltuples,
+ r.relallvisible,
+ r.curpages,
+ r.last_analyze,
+ r.last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ co.stainherit,
+ co.stanullfrac,
+ co.stawidth,
+ co.stadistinct,
+ co.stakind1,
+ co.stakind2,
+ co.stakind3,
+ co.stakind4,
+ co.stakind5,
+ co.staop1,
+ co.staop2,
+ co.staop3,
+ co.staop4,
+ co.staop5,
+ co.stanumbers1,
+ co.stanumbers2,
+ co.stanumbers3,
+ co.stanumbers4,
+ co.stanumbers5,
+ co.stavalues1,
+ co.stavalues2,
+ co.stavalues3,
+ co.stavalues4,
+ co.stavalues5
+ FROM dbms_stats.column_stats_effective co
+ JOIN pg_attribute a
+ ON (co.starelid = a.attrelid AND co.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN dbms_stats.relation_stats_effective r
+ ON co.starelid = r.relid
+ JOIN pg_catalog.pg_class cl
+ ON r.relid = cl.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON cl.relnamespace = n2.oid
+ -- WHERE n2.nspname = 'public'
+ -- AND cl.relname = 'test'
+ -- AND a.attname = 'id'
+ WHERE n2.nspname = 's0'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | relallvisible | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+---------+---------+----------+-----------+---------------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------------+------------+------------------+------------+------------
+ s0 | sft0 | 0 | 0 | 0 | 0 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | 1 | id | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2} | (null) | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | 1 | id | pg_catalog | int4 | -1 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | 1 | num | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {10,20} | (null) | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | 1 | num | pg_catalog | int4 | -1 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {10,20,40,50,60} | (null) | (null) | (null) | (null)
+ s0 | st0_idx | 2 | 2 | 0 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st1 | 1 | 3 | 1 | 1 | id | pg_catalog | int4 | -1 | f | -1 | -1 | -1 | 2 | 3 | 4 | 1 | 5 | 22 | 23 | 24 | 21 | 25 | {-1,22} | {-1,23} | {-1,24} | {-1,21} | {-1,25} | (null) | (null) | {4,5,6} | (null) | (null)
+ s0 | st1 | 1 | 3 | 1 | 1 | num | pg_catalog | int4 | -1 | f | -2 | -2 | -2 | 2 | 3 | 4 | 1 | 5 | 22 | 23 | 24 | 21 | 25 | {-2,22} | {-2,23} | {-2,24} | {-2,21} | {-2,25} | (null) | (null) | {40,50,60} | (null) | (null)
+ s0 | st1_idx | 2 | 3 | 0 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st2 | 1 | 3 | 1 | 1 | id | pg_catalog | int4 | -1 | f | -1 | -1 | -1 | 2 | 3 | 4 | 1 | 5 | 22 | 23 | 24 | 21 | 25 | {-1,22} | {-1,23} | {-1,24} | {-1,21} | {-1,25} | (null) | (null) | {1,2,3} | (null) | (null)
+ s0 | st2 | 1 | 3 | 1 | 1 | txt | pg_catalog | text | -1 | f | -2 | -2 | -2 | 2 | 3 | 4 | 1 | 5 | 22 | 23 | 24 | 21 | 25 | {-2,22} | {-2,23} | {-2,24} | {-2,21} | {-2,25} | (null) | (null) | {1,comment,test} | (null) | (null)
+ s0 | st2_idx | 2 | 3 | 0 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st3 | 0 | 0 | 0 | 0 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+(13 rows)
+
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+-- No.16-2-3
+\! sed '/ORDER/i\\ WHERE cl.relname = '"\'st0\'" export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ cl.relname,
+ r.relpages,
+ r.reltuples,
+ r.relallvisible,
+ r.curpages,
+ r.last_analyze,
+ r.last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ co.stainherit,
+ co.stanullfrac,
+ co.stawidth,
+ co.stadistinct,
+ co.stakind1,
+ co.stakind2,
+ co.stakind3,
+ co.stakind4,
+ co.stakind5,
+ co.staop1,
+ co.staop2,
+ co.staop3,
+ co.staop4,
+ co.staop5,
+ co.stanumbers1,
+ co.stanumbers2,
+ co.stanumbers3,
+ co.stanumbers4,
+ co.stanumbers5,
+ co.stavalues1,
+ co.stavalues2,
+ co.stavalues3,
+ co.stavalues4,
+ co.stavalues5
+ FROM dbms_stats.column_stats_effective co
+ JOIN pg_attribute a
+ ON (co.starelid = a.attrelid AND co.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN dbms_stats.relation_stats_effective r
+ ON co.starelid = r.relid
+ JOIN pg_catalog.pg_class cl
+ ON r.relid = cl.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON cl.relnamespace = n2.oid
+ -- WHERE n2.nspname = 'public'
+ -- AND cl.relname = 'test'
+ -- AND a.attname = 'id'
+ WHERE cl.relname = 'st0'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | relallvisible | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+---------+---------+----------+-----------+---------------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------------+------------+---------------+------------+------------
+ public | st0 | 1 | 2 | 1 | 1 | id | pg_catalog | int4 | -1 | f | -1 | -1 | -1 | 2 | 3 | 4 | 1 | 5 | 22 | 23 | 24 | 21 | 25 | {-1,22} | {-1,23} | {-1,24} | {-1,21} | {-1,25} | (null) | (null) | {1,2} | (null) | (null)
+ public | st0 | 1 | 2 | 1 | 1 | name | pg_catalog | bpchar | 9 | f | -2 | -2 | -2 | 2 | 3 | 4 | 1 | 5 | 22 | 23 | 24 | 21 | 25 | {-2,22} | {-2,23} | {-2,24} | {-2,21} | {-2,25} | (null) | (null) | {"test "} | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | 1 | id | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2} | (null) | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | 1 | id | pg_catalog | int4 | -1 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | 1 | num | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {10,20} | (null) | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | 1 | num | pg_catalog | int4 | -1 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {10,20,40,50,60} | (null) | (null) | (null) | (null)
+ s1 | st0 | 1 | 4 | 1 | 1 | id | pg_catalog | int4 | -1 | f | -1 | -1 | -1 | 2 | 3 | 4 | 1 | 5 | 22 | 23 | 24 | 21 | 25 | {-1,22} | {-1,23} | {-1,24} | {-1,21} | {-1,25} | (null) | (null) | {1,2,3,4} | (null) | (null)
+ s1 | st0 | 1 | 4 | 1 | 1 | num | pg_catalog | int4 | -1 | f | -2 | -2 | -2 | 2 | 3 | 4 | 1 | 5 | 22 | 23 | 24 | 21 | 25 | {-2,22} | {-2,23} | {-2,24} | {-2,21} | {-2,25} | (null) | (null) | {15,25,35,45} | (null) | (null)
+(8 rows)
+
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+-- No.16-2-4
+\! sed '/ORDER/i\\ WHERE cl.relname = '"\'pg_toast_1262\'" export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ cl.relname,
+ r.relpages,
+ r.reltuples,
+ r.relallvisible,
+ r.curpages,
+ r.last_analyze,
+ r.last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ co.stainherit,
+ co.stanullfrac,
+ co.stawidth,
+ co.stadistinct,
+ co.stakind1,
+ co.stakind2,
+ co.stakind3,
+ co.stakind4,
+ co.stakind5,
+ co.staop1,
+ co.staop2,
+ co.staop3,
+ co.staop4,
+ co.staop5,
+ co.stanumbers1,
+ co.stanumbers2,
+ co.stanumbers3,
+ co.stanumbers4,
+ co.stanumbers5,
+ co.stavalues1,
+ co.stavalues2,
+ co.stavalues3,
+ co.stavalues4,
+ co.stavalues5
+ FROM dbms_stats.column_stats_effective co
+ JOIN pg_attribute a
+ ON (co.starelid = a.attrelid AND co.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN dbms_stats.relation_stats_effective r
+ ON co.starelid = r.relid
+ JOIN pg_catalog.pg_class cl
+ ON r.relid = cl.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON cl.relnamespace = n2.oid
+ -- WHERE n2.nspname = 'public'
+ -- AND cl.relname = 'test'
+ -- AND a.attname = 'id'
+ WHERE cl.relname = 'pg_toast_1262'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | relallvisible | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+---------+---------+----------+-----------+---------------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------+------------+------------+------------+------------
+(0 rows)
+
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+-- No.16-2-5
+\! sed '/ORDER/i\\ WHERE cl.relname = '"\'st0_idx\'" export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ cl.relname,
+ r.relpages,
+ r.reltuples,
+ r.relallvisible,
+ r.curpages,
+ r.last_analyze,
+ r.last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ co.stainherit,
+ co.stanullfrac,
+ co.stawidth,
+ co.stadistinct,
+ co.stakind1,
+ co.stakind2,
+ co.stakind3,
+ co.stakind4,
+ co.stakind5,
+ co.staop1,
+ co.staop2,
+ co.staop3,
+ co.staop4,
+ co.staop5,
+ co.stanumbers1,
+ co.stanumbers2,
+ co.stanumbers3,
+ co.stanumbers4,
+ co.stanumbers5,
+ co.stavalues1,
+ co.stavalues2,
+ co.stavalues3,
+ co.stavalues4,
+ co.stavalues5
+ FROM dbms_stats.column_stats_effective co
+ JOIN pg_attribute a
+ ON (co.starelid = a.attrelid AND co.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN dbms_stats.relation_stats_effective r
+ ON co.starelid = r.relid
+ JOIN pg_catalog.pg_class cl
+ ON r.relid = cl.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON cl.relnamespace = n2.oid
+ -- WHERE n2.nspname = 'public'
+ -- AND cl.relname = 'test'
+ -- AND a.attname = 'id'
+ WHERE cl.relname = 'st0_idx'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | relallvisible | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+---------+---------+----------+-----------+---------------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------+------------+------------+------------+------------
+ public | st0_idx | 2 | 2 | 0 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st0_idx | 2 | 2 | 0 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+(2 rows)
+
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+-- No.16-2-6
+\! sed '/ORDER/i\\ WHERE cl.relname = '"\'ss0\'" export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ cl.relname,
+ r.relpages,
+ r.reltuples,
+ r.relallvisible,
+ r.curpages,
+ r.last_analyze,
+ r.last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ co.stainherit,
+ co.stanullfrac,
+ co.stawidth,
+ co.stadistinct,
+ co.stakind1,
+ co.stakind2,
+ co.stakind3,
+ co.stakind4,
+ co.stakind5,
+ co.staop1,
+ co.staop2,
+ co.staop3,
+ co.staop4,
+ co.staop5,
+ co.stanumbers1,
+ co.stanumbers2,
+ co.stanumbers3,
+ co.stanumbers4,
+ co.stanumbers5,
+ co.stavalues1,
+ co.stavalues2,
+ co.stavalues3,
+ co.stavalues4,
+ co.stavalues5
+ FROM dbms_stats.column_stats_effective co
+ JOIN pg_attribute a
+ ON (co.starelid = a.attrelid AND co.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN dbms_stats.relation_stats_effective r
+ ON co.starelid = r.relid
+ JOIN pg_catalog.pg_class cl
+ ON r.relid = cl.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON cl.relnamespace = n2.oid
+ -- WHERE n2.nspname = 'public'
+ -- AND cl.relname = 'test'
+ -- AND a.attname = 'id'
+ WHERE cl.relname = 'ss0'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | relallvisible | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+---------+---------+----------+-----------+---------------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------+------------+------------+------------+------------
+(0 rows)
+
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+-- No.16-2-7
+\! sed '/ORDER/i\\ WHERE cl.relname = '"\'sc0\'" export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ cl.relname,
+ r.relpages,
+ r.reltuples,
+ r.relallvisible,
+ r.curpages,
+ r.last_analyze,
+ r.last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ co.stainherit,
+ co.stanullfrac,
+ co.stawidth,
+ co.stadistinct,
+ co.stakind1,
+ co.stakind2,
+ co.stakind3,
+ co.stakind4,
+ co.stakind5,
+ co.staop1,
+ co.staop2,
+ co.staop3,
+ co.staop4,
+ co.staop5,
+ co.stanumbers1,
+ co.stanumbers2,
+ co.stanumbers3,
+ co.stanumbers4,
+ co.stanumbers5,
+ co.stavalues1,
+ co.stavalues2,
+ co.stavalues3,
+ co.stavalues4,
+ co.stavalues5
+ FROM dbms_stats.column_stats_effective co
+ JOIN pg_attribute a
+ ON (co.starelid = a.attrelid AND co.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN dbms_stats.relation_stats_effective r
+ ON co.starelid = r.relid
+ JOIN pg_catalog.pg_class cl
+ ON r.relid = cl.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON cl.relnamespace = n2.oid
+ -- WHERE n2.nspname = 'public'
+ -- AND cl.relname = 'test'
+ -- AND a.attname = 'id'
+ WHERE cl.relname = 'sc0'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | relallvisible | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+---------+---------+----------+-----------+---------------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------+------------+------------+------------+------------
+(0 rows)
+
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+-- No.16-2-8
+\! sed '/ORDER/i\\ WHERE cl.relname = '"\'sft0\'" export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ cl.relname,
+ r.relpages,
+ r.reltuples,
+ r.relallvisible,
+ r.curpages,
+ r.last_analyze,
+ r.last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ co.stainherit,
+ co.stanullfrac,
+ co.stawidth,
+ co.stadistinct,
+ co.stakind1,
+ co.stakind2,
+ co.stakind3,
+ co.stakind4,
+ co.stakind5,
+ co.staop1,
+ co.staop2,
+ co.staop3,
+ co.staop4,
+ co.staop5,
+ co.stanumbers1,
+ co.stanumbers2,
+ co.stanumbers3,
+ co.stanumbers4,
+ co.stanumbers5,
+ co.stavalues1,
+ co.stavalues2,
+ co.stavalues3,
+ co.stavalues4,
+ co.stavalues5
+ FROM dbms_stats.column_stats_effective co
+ JOIN pg_attribute a
+ ON (co.starelid = a.attrelid AND co.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN dbms_stats.relation_stats_effective r
+ ON co.starelid = r.relid
+ JOIN pg_catalog.pg_class cl
+ ON r.relid = cl.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON cl.relnamespace = n2.oid
+ -- WHERE n2.nspname = 'public'
+ -- AND cl.relname = 'test'
+ -- AND a.attname = 'id'
+ WHERE cl.relname = 'sft0'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | relallvisible | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+---------+---------+----------+-----------+---------------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------+------------+------------+------------+------------
+ s0 | sft0 | 0 | 0 | 0 | 0 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+(1 row)
+
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+-- No.16-2-9
+\! sed '/ORDER/i\\ WHERE n2.nspname = '"\'s0\'"' AND a.attname = '"\'id\'" export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ cl.relname,
+ r.relpages,
+ r.reltuples,
+ r.relallvisible,
+ r.curpages,
+ r.last_analyze,
+ r.last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ co.stainherit,
+ co.stanullfrac,
+ co.stawidth,
+ co.stadistinct,
+ co.stakind1,
+ co.stakind2,
+ co.stakind3,
+ co.stakind4,
+ co.stakind5,
+ co.staop1,
+ co.staop2,
+ co.staop3,
+ co.staop4,
+ co.staop5,
+ co.stanumbers1,
+ co.stanumbers2,
+ co.stanumbers3,
+ co.stanumbers4,
+ co.stanumbers5,
+ co.stavalues1,
+ co.stavalues2,
+ co.stavalues3,
+ co.stavalues4,
+ co.stavalues5
+ FROM dbms_stats.column_stats_effective co
+ JOIN pg_attribute a
+ ON (co.starelid = a.attrelid AND co.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN dbms_stats.relation_stats_effective r
+ ON co.starelid = r.relid
+ JOIN pg_catalog.pg_class cl
+ ON r.relid = cl.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON cl.relnamespace = n2.oid
+ -- WHERE n2.nspname = 'public'
+ -- AND cl.relname = 'test'
+ -- AND a.attname = 'id'
+ WHERE n2.nspname = 's0' AND a.attname = 'id'
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | relallvisible | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+---------+---------+----------+-----------+---------------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+-------------+------------+------------+------------+------------
+ s0 | st0 | 1 | 2 | 1 | 1 | id | pg_catalog | int4 | -1 | f | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2} | (null) | (null) | (null) | (null)
+ s0 | st0 | 1 | 2 | 1 | 1 | id | pg_catalog | int4 | -1 | t | 0 | 4 | -1 | 2 | 3 | 0 | 0 | 0 | 97 | 97 | 0 | 0 | 0 | (null) | {1} | (null) | (null) | (null) | {1,2,4,5,6} | (null) | (null) | (null) | (null)
+ s0 | st1 | 1 | 3 | 1 | 1 | id | pg_catalog | int4 | -1 | f | -1 | -1 | -1 | 2 | 3 | 4 | 1 | 5 | 22 | 23 | 24 | 21 | 25 | {-1,22} | {-1,23} | {-1,24} | {-1,21} | {-1,25} | (null) | (null) | {4,5,6} | (null) | (null)
+ s0 | st2 | 1 | 3 | 1 | 1 | id | pg_catalog | int4 | -1 | f | -1 | -1 | -1 | 2 | 3 | 4 | 1 | 5 | 22 | 23 | 24 | 21 | 25 | {-1,22} | {-1,23} | {-1,24} | {-1,21} | {-1,25} | (null) | (null) | {1,2,3} | (null) | (null)
+(4 rows)
+
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+-- No.16-2-10
+\! sed '/ORDER/i\\ WHERE n2.nspname = '"\'s0\'"' AND a.attname IS NULL' export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ cl.relname,
+ r.relpages,
+ r.reltuples,
+ r.relallvisible,
+ r.curpages,
+ r.last_analyze,
+ r.last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ co.stainherit,
+ co.stanullfrac,
+ co.stawidth,
+ co.stadistinct,
+ co.stakind1,
+ co.stakind2,
+ co.stakind3,
+ co.stakind4,
+ co.stakind5,
+ co.staop1,
+ co.staop2,
+ co.staop3,
+ co.staop4,
+ co.staop5,
+ co.stanumbers1,
+ co.stanumbers2,
+ co.stanumbers3,
+ co.stanumbers4,
+ co.stanumbers5,
+ co.stavalues1,
+ co.stavalues2,
+ co.stavalues3,
+ co.stavalues4,
+ co.stavalues5
+ FROM dbms_stats.column_stats_effective co
+ JOIN pg_attribute a
+ ON (co.starelid = a.attrelid AND co.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN dbms_stats.relation_stats_effective r
+ ON co.starelid = r.relid
+ JOIN pg_catalog.pg_class cl
+ ON r.relid = cl.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON cl.relnamespace = n2.oid
+ -- WHERE n2.nspname = 'public'
+ -- AND cl.relname = 'test'
+ -- AND a.attname = 'id'
+ WHERE n2.nspname = 's0' AND a.attname IS NULL
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | relallvisible | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+---------+---------+----------+-----------+---------------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------+------------+------------+------------+------------
+ s0 | sft0 | 0 | 0 | 0 | 0 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st0_idx | 2 | 2 | 0 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st1_idx | 2 | 3 | 0 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st2_idx | 2 | 3 | 0 | 2 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+ s0 | st3 | 0 | 0 | 0 | 0 | | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null) | (null)
+(5 rows)
+
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+-- No.16-2-11
+\! sed '/ORDER/i\\ WHERE n2.nspname = '"\'s0\'"' AND cl.relname IS NULL' export_effective_stats.sql.sample > export_effective_stats.sql.sample_test
+\i export_effective_stats.sql.sample_test
+/*
+ * If you want the statistics of per-relation or per-column, please modify
+ * nspname, relname, and attname in 'WHERE' clause.
+ */
+BEGIN TRANSACTION ISOLATION LEVEL SERIALIZABLE;
+/*
+ * If you want to chage the output file name, please modify the following name.
+ */
+\o export_stats.dmp
+COPY (SELECT n2.nspname,
+ cl.relname,
+ r.relpages,
+ r.reltuples,
+ r.relallvisible,
+ r.curpages,
+ r.last_analyze,
+ r.last_autoanalyze,
+ COALESCE(a.attname, ''),
+ n1.nspname AS schemaname_of_atttype,
+ t.typname,
+ a.atttypmod,
+ co.stainherit,
+ co.stanullfrac,
+ co.stawidth,
+ co.stadistinct,
+ co.stakind1,
+ co.stakind2,
+ co.stakind3,
+ co.stakind4,
+ co.stakind5,
+ co.staop1,
+ co.staop2,
+ co.staop3,
+ co.staop4,
+ co.staop5,
+ co.stanumbers1,
+ co.stanumbers2,
+ co.stanumbers3,
+ co.stanumbers4,
+ co.stanumbers5,
+ co.stavalues1,
+ co.stavalues2,
+ co.stavalues3,
+ co.stavalues4,
+ co.stavalues5
+ FROM dbms_stats.column_stats_effective co
+ JOIN pg_attribute a
+ ON (co.starelid = a.attrelid AND co.staattnum = a.attnum)
+ JOIN pg_type t
+ ON a.atttypid = t.oid
+ JOIN pg_namespace n1
+ ON t.typnamespace = n1.oid
+ RIGHT JOIN dbms_stats.relation_stats_effective r
+ ON co.starelid = r.relid
+ JOIN pg_catalog.pg_class cl
+ ON r.relid = cl.oid
+ JOIN pg_catalog.pg_namespace n2
+ ON cl.relnamespace = n2.oid
+ -- WHERE n2.nspname = 'public'
+ -- AND cl.relname = 'test'
+ -- AND a.attname = 'id'
+ WHERE n2.nspname = 's0' AND cl.relname IS NULL
+ ORDER BY starelid, staattnum)
+TO STDOUT
+(FORMAT 'binary');
+\o
+COMMIT;
+COPY dbms_stats.work FROM '@abs_srcdir@/export_stats.dmp' (FORMAT 'binary');
+SELECT * FROM work_v;
+ nspname | relname | relpages | reltuples | relallvisible | curpages | attname | nspname_of_typename | typname | atttypmod | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | stavalues1 | stavalues2 | stavalues3 | stavalues4 | stavalues5
+---------+---------+----------+-----------+---------------+----------+---------+---------------------+---------+-----------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+-------------+-------------+-------------+-------------+-------------+------------+------------+------------+------------+------------
+(0 rows)
+
+\! rm export_effective_stats.sql.sample_test
+TRUNCATE dbms_stats.work;
+/*
+ * Stab function dbms_stats.import
+ */
+ALTER FUNCTION dbms_stats.import(
+ nspname text,
+ relid regclass,
+ attname text,
+ src text
+) RENAME TO truth_import;
+CREATE FUNCTION dbms_stats.import(
+ nspname text,
+ relid regclass,
+ attname text,
+ src text
+) RETURNS void AS
+$$
+BEGIN
+ RAISE NOTICE 'arguments are "%", "%", "%", "%"', $1, $2, $3, $4;
+ RETURN;
+END
+$$
+LANGUAGE plpgsql;
+/*
+ * No.17-1 dbms_stats.import_database_stats(src)
+ */
+-- No.17-1-1
+SELECT dbms_stats.import_database_stats('@abs_srcdir@/export_stats.dmp');
+NOTICE: arguments are "<NULL>", "<NULL>", "<NULL>", "@abs_srcdir@/export_stats.dmp"
+ import_database_stats
+-----------------------
+
+(1 row)
+
+/*
+ * No.17-2 dbms_stats.import_schema_stats(schemaname, src)
+ */
+-- No.17-2-1
+SELECT dbms_stats.import_schema_stats('s0', '@abs_srcdir@/export_stats.dmp');
+NOTICE: arguments are "s0", "<NULL>", "<NULL>", "@abs_srcdir@/export_stats.dmp"
+ import_schema_stats
+---------------------
+
+(1 row)
+
+/*
+ * No.17-3 dbms_stats.import_table_stats(relid, src)
+ */
+-- No.17-3-1
+SELECT dbms_stats.import_table_stats('s0.st0', '@abs_srcdir@/export_stats.dmp');
+NOTICE: arguments are "<NULL>", "s0.st0", "<NULL>", "@abs_srcdir@/export_stats.dmp"
+ import_table_stats
+--------------------
+
+(1 row)
+
+/*
+ * No.17-4 dbms_stats.import_table_stats(schemaname, tablename, src)
+ */
+-- No.17-4-1
+SELECT dbms_stats.import_table_stats('s0', 'st0', '@abs_srcdir@/export_stats.dmp');
+NOTICE: arguments are "<NULL>", "s0.st0", "<NULL>", "@abs_srcdir@/export_stats.dmp"
+ import_table_stats
+--------------------
+
+(1 row)
+
+/*
+ * No.17-5 dbms_stats.import_column_stats (relid, attname, src)
+ */
+-- No.17-5-1
+SELECT dbms_stats.import_column_stats('s0.st0', 'id', '@abs_srcdir@/export_stats.dmp');
+NOTICE: arguments are "<NULL>", "s0.st0", "id", "@abs_srcdir@/export_stats.dmp"
+ import_column_stats
+---------------------
+
+(1 row)
+
+/*
+ * No.17-6 dbms_stats.import_column_stats (schemaname, tablename, attname, src)
+ */
+-- No.17-6-1
+SELECT dbms_stats.import_column_stats('s0', 'st0', 'id','@abs_srcdir@/export_stats.dmp');
+NOTICE: arguments are "<NULL>", "s0.st0", "id", "@abs_srcdir@/export_stats.dmp"
+ import_column_stats
+---------------------
+
+(1 row)
+
+/*
+ * Delete stab function dbms_stats.import
+ */
+DROP FUNCTION dbms_stats.import(
+ nspname text,
+ relid regclass,
+ attname text,
+ src text
+);
+ALTER FUNCTION dbms_stats.truth_import(
+ nspname text,
+ relid regclass,
+ attname text,
+ src text
+) RENAME TO import;
--- /dev/null
+/* pg_dbms_stats/pg_dbms_stats--1.0.sql */
+
+-- complain if script is sourced in psql, rather than via CREATE EXTENSION
+\echo Use "CREATE EXTENSION dbms_stats" to load this file. \quit
+
+-- define alias of anyarray type because parser does not allow to use
+-- anyarray in type definitions.
+--
+CREATE FUNCTION dbms_stats.anyarray_in(cstring) RETURNS dbms_stats.anyarray
+ AS 'anyarray_in' LANGUAGE internal STRICT IMMUTABLE;
+CREATE FUNCTION dbms_stats.anyarray_out(dbms_stats.anyarray) RETURNS cstring
+ AS 'anyarray_out' LANGUAGE internal STRICT IMMUTABLE;
+CREATE FUNCTION dbms_stats.anyarray_recv(internal) RETURNS dbms_stats.anyarray
+ AS 'MODULE_PATHNAME', 'dbms_stats_array_recv' LANGUAGE C STRICT IMMUTABLE;
+CREATE FUNCTION dbms_stats.anyarray_send(dbms_stats.anyarray) RETURNS bytea
+ AS 'anyarray_send' LANGUAGE internal STRICT IMMUTABLE;
+CREATE TYPE dbms_stats.anyarray (
+ INPUT = dbms_stats.anyarray_in,
+ OUTPUT = dbms_stats.anyarray_out,
+ RECEIVE = dbms_stats.anyarray_recv,
+ SEND = dbms_stats.anyarray_send,
+ INTERNALLENGTH = VARIABLE,
+ ALIGNMENT = double,
+ STORAGE = extended,
+ CATEGORY = 'P'
+);
+
+--
+-- User defined stats tables
+--
+
+CREATE TABLE dbms_stats._relation_stats_locked (
+ relid oid NOT NULL,
+ relname text NOT NULL,
+ relpages int4,
+ reltuples float4,
+ curpages int4,
+ last_analyze timestamp with time zone,
+ last_autoanalyze timestamp with time zone,
+ PRIMARY KEY (relid)
+);
+
+CREATE TABLE dbms_stats._column_stats_locked (
+ starelid oid NOT NULL,
+ staattnum int2 NOT NULL,
+ stainherit bool NOT NULL,
+ stanullfrac float4,
+ stawidth int4,
+ stadistinct float4,
+ stakind1 int2,
+ stakind2 int2,
+ stakind3 int2,
+ stakind4 int2,
+ staop1 oid,
+ staop2 oid,
+ staop3 oid,
+ staop4 oid,
+ stanumbers1 float4[],
+ stanumbers2 float4[],
+ stanumbers3 float4[],
+ stanumbers4 float4[],
+ stavalues1 dbms_stats.anyarray,
+ stavalues2 dbms_stats.anyarray,
+ stavalues3 dbms_stats.anyarray,
+ stavalues4 dbms_stats.anyarray,
+ PRIMARY KEY (starelid, staattnum, stainherit),
+ FOREIGN KEY (starelid) REFERENCES dbms_stats._relation_stats_locked (relid) ON DELETE CASCADE
+);
+
+--
+-- Statistics backup tables
+--
+
+CREATE TABLE dbms_stats.backup_history (
+ id serial8 PRIMARY KEY,
+ time timestamp with time zone NOT NULL,
+ unit char(1) NOT NULL,
+ comment text
+);
+
+CREATE TABLE dbms_stats.relation_stats_backup (
+ id int8 NOT NULL,
+ relid oid NOT NULL,
+ relname text NOT NULL,
+ relpages int4 NOT NULL,
+ reltuples float4 NOT NULL,
+ curpages int4 NOT NULL,
+ last_analyze timestamp with time zone,
+ last_autoanalyze timestamp with time zone,
+ PRIMARY KEY (id, relid),
+ FOREIGN KEY (id) REFERENCES dbms_stats.backup_history (id) ON DELETE CASCADE
+);
+
+CREATE TABLE dbms_stats.column_stats_backup (
+ id int8 NOT NULL,
+ statypid oid NOT NULL,
+ starelid oid NOT NULL,
+ staattnum int2 NOT NULL,
+ stainherit bool NOT NULL,
+ stanullfrac float4 NOT NULL,
+ stawidth int4 NOT NULL,
+ stadistinct float4 NOT NULL,
+ stakind1 int2 NOT NULL,
+ stakind2 int2 NOT NULL,
+ stakind3 int2 NOT NULL,
+ stakind4 int2 NOT NULL,
+ staop1 oid NOT NULL,
+ staop2 oid NOT NULL,
+ staop3 oid NOT NULL,
+ staop4 oid NOT NULL,
+ stanumbers1 float4[],
+ stanumbers2 float4[],
+ stanumbers3 float4[],
+ stanumbers4 float4[],
+ stavalues1 dbms_stats.anyarray,
+ stavalues2 dbms_stats.anyarray,
+ stavalues3 dbms_stats.anyarray,
+ stavalues4 dbms_stats.anyarray,
+ PRIMARY KEY (id, starelid, staattnum, stainherit),
+ FOREIGN KEY (id) REFERENCES dbms_stats.backup_history (id) ON DELETE CASCADE,
+ FOREIGN KEY (id, starelid) REFERENCES dbms_stats.relation_stats_backup (id, relid) ON DELETE CASCADE
+);
+
+--
+-- Functions
+--
+
+CREATE FUNCTION dbms_stats.relname(nspname text, relname text)
+RETURNS text AS
+$$SELECT quote_ident($1) || '.' || quote_ident($2)$$
+LANGUAGE sql STABLE STRICT;
+
+CREATE FUNCTION dbms_stats.is_system_schema(schemaname text)
+RETURNS boolean AS
+'MODULE_PATHNAME', 'dbms_stats_is_system_schema'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION dbms_stats.is_system_catalog(relid regclass)
+RETURNS boolean AS
+'MODULE_PATHNAME', 'dbms_stats_is_system_catalog'
+LANGUAGE C STABLE;
+
+CREATE FUNCTION dbms_stats.is_target_relkind(relkind "char")
+RETURNS boolean AS
+$$SELECT $1 IN ('r', 'i')$$
+LANGUAGE sql STABLE;
+
+CREATE FUNCTION dbms_stats.merge(
+ lhs dbms_stats._column_stats_locked,
+ rhs pg_catalog.pg_statistic
+) RETURNS dbms_stats._column_stats_locked AS
+'MODULE_PATHNAME', 'dbms_stats_merge'
+LANGUAGE C STABLE;
+
+--
+-- Statistics views for internal use
+-- These views are used to merge authentic stats and dummy stats by hook
+-- function, so we don't grant SELECT privilege to PUBLIC.
+--
+
+CREATE VIEW dbms_stats.relation_stats_effective AS
+ SELECT
+ c.oid AS relid,
+ dbms_stats.relname(nspname, c.relname) AS relname,
+ COALESCE(v.relpages, c.relpages) AS relpages,
+ COALESCE(v.reltuples, c.reltuples) AS reltuples,
+ COALESCE(v.curpages,
+ (pg_relation_size(c.oid) / current_setting('block_size')::int4)::int4)
+ AS curpages,
+ COALESCE(v.last_analyze,
+ pg_catalog.pg_stat_get_last_analyze_time(c.oid))
+ AS last_analyze,
+ COALESCE(v.last_autoanalyze,
+ pg_catalog.pg_stat_get_last_autoanalyze_time(c.oid))
+ AS last_autoanalyze
+ FROM pg_catalog.pg_class c
+ JOIN pg_catalog.pg_namespace n
+ ON c.relnamespace = n.oid
+ LEFT JOIN dbms_stats._relation_stats_locked v
+ ON v.relid = c.oid
+ WHERE dbms_stats.is_target_relkind(c.relkind)
+ AND NOT dbms_stats.is_system_schema(nspname);
+
+CREATE VIEW dbms_stats.column_stats_effective AS
+ SELECT * FROM (
+ SELECT (dbms_stats.merge(v, s)).*
+ FROM pg_catalog.pg_statistic s
+ FULL JOIN dbms_stats._column_stats_locked v
+ USING (starelid, staattnum, stainherit)
+ WHERE NOT dbms_stats.is_system_catalog(starelid)
+ ) m
+ WHERE starelid IS NOT NULL;
+
+--
+-- Statistics views for user use (including non-superusers)
+-- These views allow users to see dummy statistics about tables which the
+-- user has SELECT privilege.
+--
+
+CREATE VIEW dbms_stats.relation_stats_locked
+ AS SELECT *
+ FROM dbms_stats._relation_stats_locked;
+
+GRANT SELECT ON dbms_stats.relation_stats_locked TO PUBLIC;
+
+CREATE VIEW dbms_stats.column_stats_locked
+ AS SELECT *
+ FROM dbms_stats._column_stats_locked
+ WHERE has_column_privilege(starelid, staattnum, 'SELECT');
+
+GRANT SELECT ON dbms_stats.column_stats_locked TO PUBLIC;
+
+--
+-- Note: This view is copied from pg_stats in
+-- src/backend/catalog/system_views.sql in core source tree of version
+-- 9.1, and customized for pg_dbms_stats. Changes from orignal one are:
+-- - rename from pg_stats to dbms_stats.stats by a view name.
+-- - changed the table name from pg_statistic to dbms_stats.column_stats_effective.
+--
+CREATE VIEW dbms_stats.stats AS
+ SELECT
+ nspname AS schemaname,
+ relname AS tablename,
+ attname AS attname,
+ stainherit AS inherited,
+ stanullfrac AS null_frac,
+ stawidth AS avg_width,
+ stadistinct AS n_distinct,
+ CASE
+ WHEN stakind1 IN (1, 4) THEN stavalues1
+ WHEN stakind2 IN (1, 4) THEN stavalues2
+ WHEN stakind3 IN (1, 4) THEN stavalues3
+ WHEN stakind4 IN (1, 4) THEN stavalues4
+ END AS most_common_vals,
+ CASE
+ WHEN stakind1 IN (1, 4) THEN stanumbers1
+ WHEN stakind2 IN (1, 4) THEN stanumbers2
+ WHEN stakind3 IN (1, 4) THEN stanumbers3
+ WHEN stakind4 IN (1, 4) THEN stanumbers4
+ END AS most_common_freqs,
+ CASE
+ WHEN stakind1 = 2 THEN stavalues1
+ WHEN stakind2 = 2 THEN stavalues2
+ WHEN stakind3 = 2 THEN stavalues3
+ WHEN stakind4 = 2 THEN stavalues4
+ END AS histogram_bounds,
+ CASE
+ WHEN stakind1 = 3 THEN stanumbers1[1]
+ WHEN stakind2 = 3 THEN stanumbers2[1]
+ WHEN stakind3 = 3 THEN stanumbers3[1]
+ WHEN stakind4 = 3 THEN stanumbers4[1]
+ END AS correlation
+ FROM dbms_stats.column_stats_effective s JOIN pg_class c ON (c.oid = s.starelid)
+ JOIN pg_attribute a ON (c.oid = attrelid AND attnum = s.staattnum)
+ LEFT JOIN pg_namespace n ON (n.oid = c.relnamespace)
+ WHERE NOT attisdropped AND has_column_privilege(c.oid, a.attnum, 'select');
+
+GRANT SELECT ON dbms_stats.stats TO PUBLIC;
+
+--
+-- Utility functions
+--
+
+CREATE FUNCTION dbms_stats.invalidate_relation_cache()
+ RETURNS trigger AS
+ 'MODULE_PATHNAME', 'dbms_stats_invalidate_relation_cache'
+ LANGUAGE C;
+
+-- Invalidate cached plans when dbms_stats._relation_stats_locked is modified.
+CREATE TRIGGER invalidate_relation_cache
+ BEFORE INSERT OR DELETE OR UPDATE
+ ON dbms_stats._relation_stats_locked
+ FOR EACH ROW EXECUTE PROCEDURE dbms_stats.invalidate_relation_cache();
+
+CREATE FUNCTION dbms_stats.invalidate_column_cache()
+ RETURNS trigger AS
+ 'MODULE_PATHNAME', 'dbms_stats_invalidate_column_cache'
+ LANGUAGE C;
+
+-- Invalidate cached plans when dbms_stats._column_stats_locked is modified.
+CREATE TRIGGER invalidate_column_cache
+ BEFORE INSERT OR DELETE OR UPDATE
+ ON dbms_stats._column_stats_locked
+ FOR EACH ROW EXECUTE PROCEDURE dbms_stats.invalidate_column_cache();
+
+--
+-- BACKUP_STATS: Statistic backup functions
+--
+
+CREATE FUNCTION dbms_stats.backup(
+ backup_id int8,
+ relid regclass,
+ attnum int2
+) RETURNS int8 AS
+$$
+INSERT INTO dbms_stats.relation_stats_backup
+ SELECT $1, v.relid, v.relname, v.relpages, v.reltuples,
+ v.curpages, v.last_analyze, v.last_autoanalyze
+ FROM pg_catalog.pg_class c,
+ dbms_stats.relation_stats_effective v
+ WHERE c.oid = v.relid
+ AND dbms_stats.is_target_relkind(relkind)
+ AND NOT dbms_stats.is_system_catalog(v.relid)
+ AND (v.relid = $2 OR $2 IS NULL);
+
+INSERT INTO dbms_stats.column_stats_backup
+ SELECT $1, atttypid, s.*
+ FROM pg_catalog.pg_class c,
+ dbms_stats.column_stats_effective s,
+ pg_catalog.pg_attribute a
+ WHERE c.oid = starelid
+ AND starelid = attrelid
+ AND staattnum = attnum
+ AND dbms_stats.is_target_relkind(relkind)
+ AND NOT dbms_stats.is_system_catalog(c.oid)
+ AND ($2 IS NULL OR starelid = $2)
+ AND ($3 IS NULL OR staattnum = $3);
+
+SELECT $1;
+$$
+LANGUAGE sql;
+
+CREATE FUNCTION dbms_stats.backup(
+ relid regclass DEFAULT NULL,
+ attname text DEFAULT NULL,
+ comment text DEFAULT NULL
+) RETURNS int8 AS
+$$
+DECLARE
+ backup_id int8;
+ backup_relkind "char";
+ set_attnum int2;
+ unit_type char;
+BEGIN
+ IF $1 IS NULL AND $2 IS NOT NULL THEN
+ RAISE EXCEPTION 'relation is required';
+ END IF;
+ IF $1 IS NOT NULL THEN
+ SELECT relkind INTO backup_relkind
+ FROM pg_catalog.pg_class WHERE oid = $1;
+ IF NOT FOUND THEN
+ RAISE EXCEPTION 'relation "%" does not exist', $1;
+ END IF;
+ IF NOT dbms_stats.is_target_relkind(backup_relkind) THEN
+ RAISE EXCEPTION 'can not backup statistics of "%" with relkind "%"',
+ $1, backup_relkind
+ USING HINT = 'only tables and indexes are supported';
+ END IF;
+ IF dbms_stats.is_system_catalog($1) THEN
+ RAISE EXCEPTION 'can not backup statistics of system catalog "%"', $1;
+ END IF;
+ IF $2 IS NOT NULL THEN
+ SELECT a.attnum INTO set_attnum FROM pg_catalog.pg_attribute a
+ WHERE a.attrelid = $1 AND a.attname = $2;
+ IF set_attnum IS NULL THEN
+ RAISE EXCEPTION 'column "%" of "%" does not exist', $2, $1;
+ END IF;
+ IF NOT EXISTS(SELECT * FROM dbms_stats.column_stats_effective WHERE starelid = $1 AND staattnum = set_attnum) THEN
+ RAISE EXCEPTION 'statistic for column "%" of "%" does not exist', $2, $1;
+ END IF;
+ unit_type = 'c';
+ ELSE
+ unit_type = 't';
+ END IF;
+ ELSE
+ unit_type = 'd';
+ END IF;
+
+ INSERT INTO dbms_stats.backup_history(time, unit, comment)
+ VALUES (current_timestamp, unit_type, $3)
+ RETURNING dbms_stats.backup(id, $1, set_attnum) INTO backup_id;
+ RETURN backup_id;
+END;
+$$
+LANGUAGE plpgsql;
+
+CREATE FUNCTION dbms_stats.backup_database_stats(
+ comment text
+) RETURNS int8 AS
+$$
+SELECT dbms_stats.backup(NULL, NULL, $1)
+$$
+LANGUAGE sql;
+
+CREATE FUNCTION dbms_stats.backup_schema_stats(
+ schemaname text,
+ comment text
+) RETURNS int8 AS
+$$
+DECLARE
+ backup_id int8;
+BEGIN
+ IF NOT EXISTS(SELECT * FROM pg_namespace WHERE nspname = $1) THEN
+ RAISE EXCEPTION 'schema "%" does not exist', $1;
+ END IF;
+ IF dbms_stats.is_system_schema($1) THEN
+ RAISE EXCEPTION 'can not backup statistics of relation in system schema "%"', $1;
+ END IF;
+
+ INSERT INTO dbms_stats.backup_history(time, unit, comment)
+ VALUES (current_timestamp, 's', comment)
+ RETURNING id INTO backup_id;
+
+ PERFORM dbms_stats.backup(backup_id, cn.oid, NULL)
+ FROM (SELECT c.oid
+ FROM pg_catalog.pg_class c,
+ pg_catalog.pg_namespace n
+ WHERE n.nspname = schemaname
+ AND c.relnamespace = n.oid
+ AND dbms_stats.is_target_relkind(c.relkind)
+ ORDER BY c.oid
+ ) cn;
+
+ RETURN backup_id;
+END;
+$$
+LANGUAGE plpgsql;
+
+CREATE FUNCTION dbms_stats.backup_table_stats(
+ relid regclass,
+ comment text
+) RETURNS int8 AS
+$$
+SELECT dbms_stats.backup($1, NULL, $2)
+$$
+LANGUAGE sql;
+
+CREATE FUNCTION dbms_stats.backup_table_stats(
+ schemaname text,
+ tablename text,
+ comment text
+) RETURNS int8 AS
+$$
+SELECT dbms_stats.backup(dbms_stats.relname($1, $2)::regclass, NULL, $3)
+$$
+LANGUAGE sql;
+
+CREATE FUNCTION dbms_stats.backup_column_stats(
+ relid regclass,
+ attname text,
+ comment text
+) RETURNS int8 AS
+$$
+SELECT dbms_stats.backup($1, $2, $3)
+$$
+LANGUAGE sql;
+
+CREATE FUNCTION dbms_stats.backup_column_stats(
+ schemaname text,
+ tablename text,
+ attname text,
+ comment text
+) RETURNS int8 AS
+$$
+SELECT dbms_stats.backup(dbms_stats.relname($1, $2)::regclass, $3, $4)
+$$
+LANGUAGE sql;
+
+--
+-- RESTORE_STATS: Statistic restore functions
+--
+CREATE FUNCTION dbms_stats.restore(
+ backup_id int8,
+ relid regclass DEFAULT NULL,
+ attname text DEFAULT NULL
+) RETURNS SETOF regclass AS
+$$
+DECLARE
+ restore_id int8;
+ restore_relid regclass;
+ restore_attnum int2;
+ set_attnum int2;
+ restore_attname text;
+ restore_type regtype;
+ cur_type regtype;
+BEGIN
+ IF $1 IS NULL THEN
+ RAISE EXCEPTION 'backup id is required';
+ END IF;
+ IF $2 IS NULL AND $3 IS NOT NULL THEN
+ RAISE EXCEPTION 'relation is required';
+ END IF;
+ IF NOT EXISTS(SELECT * FROM dbms_stats.backup_history WHERE id <= $1) THEN
+ RAISE EXCEPTION 'backup id % does not exist', $1;
+ END IF;
+ IF $2 IS NOT NULL THEN
+ IF NOT EXISTS(SELECT * FROM pg_catalog.pg_class WHERE oid = $2) THEN
+ RAISE EXCEPTION 'relation "%" does not exist', $2;
+ END IF;
+ IF NOT EXISTS(SELECT * FROM dbms_stats.relation_stats_backup b
+ WHERE b.id <= $1 AND b.relid = $2) THEN
+ RAISE EXCEPTION 'relation "%" does not exist in previous backup', $2;
+ END IF;
+ IF $3 IS NOT NULL THEN
+ SELECT a.attnum INTO set_attnum FROM pg_catalog.pg_attribute a
+ WHERE a.attrelid = $2 AND a.attname = $3;
+ IF set_attnum IS NULL THEN
+ RAISE EXCEPTION 'column "%" of "%" does not exist', $3, $2;
+ END IF;
+ IF NOT EXISTS(SELECT * FROM dbms_stats.column_stats_backup WHERE id <= $1 AND starelid = $2 AND staattnum = set_attnum) THEN
+ RAISE EXCEPTION 'column "%" of "%" does not exist in previous backup',$3, $2;
+ END IF;
+ END IF;
+ END IF;
+
+ LOCK dbms_stats._relation_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+ LOCK dbms_stats._column_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+
+ FOR restore_id, restore_relid IN
+ SELECT max(b.id), c.oid
+ FROM pg_class c, dbms_stats.relation_stats_backup b
+ WHERE (c.oid = $2 OR $2 IS NULL)
+ AND c.oid = b.relid
+ AND dbms_stats.is_target_relkind(c.relkind)
+ AND NOT dbms_stats.is_system_catalog(c.oid)
+ AND b.id <= $1
+ GROUP BY c.oid
+ ORDER BY c.oid::regclass::text
+ LOOP
+ UPDATE dbms_stats._relation_stats_locked r
+ SET relid = b.relid,
+ relname = b.relname,
+ relpages = b.relpages,
+ reltuples = b.reltuples,
+ curpages = b.curpages,
+ last_analyze = b.last_analyze,
+ last_autoanalyze = b.last_autoanalyze
+ FROM dbms_stats.relation_stats_backup b
+ WHERE r.relid = restore_relid
+ AND b.id = restore_id
+ AND b.relid = restore_relid;
+ IF NOT FOUND THEN
+ INSERT INTO dbms_stats._relation_stats_locked
+ SELECT b.relid,
+ b.relname,
+ b.relpages,
+ b.reltuples,
+ b.curpages,
+ b.last_analyze,
+ b.last_autoanalyze
+ FROM dbms_stats.relation_stats_backup b
+ WHERE b.id = restore_id
+ AND b.relid = restore_relid;
+ END IF;
+ RETURN NEXT restore_relid;
+ END LOOP;
+
+ FOR restore_id, restore_relid, restore_attnum, restore_type, cur_type IN
+ SELECT t.id, t.oid, t.attnum, b.statypid, a.atttypid
+ FROM pg_attribute a,
+ dbms_stats.column_stats_backup b,
+ (SELECT max(b.id) AS id, c.oid, a.attnum
+ FROM pg_class c, pg_attribute a, dbms_stats.column_stats_backup b
+ WHERE (c.oid = $2 OR $2 IS NULL)
+ AND c.oid = a.attrelid
+ AND c.oid = b.starelid
+ AND (a.attnum = set_attnum OR set_attnum IS NULL)
+ AND a.attnum = b.staattnum
+ AND NOT a.attisdropped
+ AND dbms_stats.is_target_relkind(c.relkind)
+ AND b.id <= $1
+ GROUP BY c.oid, a.attnum) t
+ WHERE a.attrelid = t.oid
+ AND a.attnum = t.attnum
+ AND b.id = t.id
+ AND b.starelid = t.oid
+ AND b.staattnum = t.attnum
+ LOOP
+ IF restore_type <> cur_type THEN
+ SELECT a.attname INTO restore_attname
+ FROM pg_catalog.pg_attribute a
+ WHERE a.attrelid = restore_relid
+ AND a.attnum = restore_attnum;
+ RAISE WARNING 'skip "%.%" because of type mismatch: "%" in backup and "%" in database',
+ restore_relid, restore_attname, restore_type, cur_type;
+ ELSE
+ DELETE FROM dbms_stats._column_stats_locked
+ WHERE starelid = restore_relid
+ AND staattnum = restore_attnum;
+ INSERT INTO dbms_stats._column_stats_locked
+ SELECT starelid, staattnum, stainherit,
+ stanullfrac, stawidth, stadistinct,
+ stakind1, stakind2, stakind3, stakind4,
+ staop1, staop2, staop3, staop4,
+ stanumbers1, stanumbers2, stanumbers3, stanumbers4,
+ stavalues1, stavalues2, stavalues3, stavalues4
+ FROM dbms_stats.column_stats_backup
+ WHERE id = restore_id
+ AND starelid = restore_relid
+ AND staattnum = restore_attnum;
+ END IF;
+ END LOOP;
+END;
+$$
+LANGUAGE plpgsql;
+
+CREATE FUNCTION dbms_stats.restore_database_stats(
+ as_of_timestamp timestamp with time zone
+) RETURNS SETOF regclass AS
+$$
+SELECT dbms_stats.restore(m.id, m.relid)
+ FROM (SELECT max(r.id) AS id, r.relid
+ FROM pg_class c, dbms_stats.relation_stats_backup r,
+ dbms_stats.backup_history b
+ WHERE c.oid = r.relid
+ AND r.id = b.id
+ AND b.time <= $1
+ GROUP BY r.relid
+ ORDER BY r.relid
+ ) m;
+$$
+LANGUAGE sql STRICT;
+
+CREATE FUNCTION dbms_stats.restore_schema_stats(
+ schemaname text,
+ as_of_timestamp timestamp with time zone
+) RETURNS SETOF regclass AS
+$$
+BEGIN
+ IF NOT EXISTS(SELECT * FROM pg_namespace WHERE nspname = $1) THEN
+ RAISE EXCEPTION 'schema "%" does not exist', $1;
+ END IF;
+ IF dbms_stats.is_system_schema($1) THEN
+ RAISE EXCEPTION 'can not restore statistics of relation in system schema "%"', $1;
+ END IF;
+
+ RETURN QUERY
+ SELECT dbms_stats.restore(m.id, m.relid)
+ FROM (SELECT max(r.id) AS id, r.relid
+ FROM pg_class c, pg_namespace n,
+ dbms_stats.relation_stats_backup r,
+ dbms_stats.backup_history b
+ WHERE c.oid = r.relid
+ AND c.relnamespace = n.oid
+ AND n.nspname = $1
+ AND r.id = b.id
+ AND b.time <= $2
+ GROUP BY r.relid
+ ORDER BY r.relid
+ ) m;
+END;
+$$
+LANGUAGE plpgsql STRICT;
+
+CREATE FUNCTION dbms_stats.restore_table_stats(
+ relid regclass,
+ as_of_timestamp timestamp with time zone
+) RETURNS SETOF regclass AS
+$$
+SELECT dbms_stats.restore(max(id), $1, NULL)
+ FROM dbms_stats.backup_history WHERE time <= $2
+$$
+LANGUAGE sql STRICT;
+
+CREATE FUNCTION dbms_stats.restore_table_stats(
+ schemaname text,
+ tablename text,
+ as_of_timestamp timestamp with time zone
+) RETURNS SETOF regclass AS
+$$
+SELECT dbms_stats.restore_table_stats(dbms_stats.relname($1, $2)::regclass, $3)
+$$
+LANGUAGE sql STRICT;
+
+CREATE FUNCTION dbms_stats.restore_column_stats(
+ relid regclass,
+ attname text,
+ as_of_timestamp timestamp with time zone
+) RETURNS SETOF regclass AS
+$$
+SELECT dbms_stats.restore(max(id), $1, $2)
+ FROM dbms_stats.backup_history WHERE time <= $3
+$$
+LANGUAGE sql STRICT;
+
+CREATE FUNCTION dbms_stats.restore_column_stats(
+ schemaname text,
+ tablename text,
+ attname text,
+ as_of_timestamp timestamp with time zone
+) RETURNS SETOF regclass AS
+$$
+SELECT dbms_stats.restore(max(id), dbms_stats.relname($1, $2)::regclass, $3)
+ FROM dbms_stats.backup_history WHERE time <= $4
+$$
+LANGUAGE sql STRICT;
+
+CREATE FUNCTION dbms_stats.restore_stats(
+ backup_id int8
+) RETURNS SETOF regclass AS
+$$
+DECLARE
+ restore_relid regclass;
+ restore_attnum int2;
+ restore_attname text;
+ restore_type regtype;
+ cur_type regtype;
+BEGIN
+ IF NOT EXISTS(SELECT * FROM dbms_stats.backup_history WHERE id = $1) THEN
+ RAISE EXCEPTION 'backup id % does not exist', $1;
+ END IF;
+
+ LOCK dbms_stats._relation_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+ LOCK dbms_stats._column_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+
+ FOR restore_relid IN
+ SELECT b.relid
+ FROM pg_class c
+ JOIN dbms_stats.relation_stats_backup b ON (c.oid = b.relid)
+ WHERE b.id = $1
+ ORDER BY c.oid::regclass::text
+ LOOP
+ UPDATE dbms_stats._relation_stats_locked r
+ SET relid = b.relid,
+ relname = b.relname,
+ relpages = b.relpages,
+ reltuples = b.reltuples,
+ curpages = b.curpages,
+ last_analyze = b.last_analyze,
+ last_autoanalyze = b.last_autoanalyze
+ FROM dbms_stats.relation_stats_backup b
+ WHERE r.relid = restore_relid
+ AND b.id = $1
+ AND b.relid = restore_relid;
+ IF NOT FOUND THEN
+ INSERT INTO dbms_stats._relation_stats_locked
+ SELECT b.relid,
+ b.relname,
+ b.relpages,
+ b.reltuples,
+ b.curpages,
+ b.last_analyze,
+ b.last_autoanalyze
+ FROM dbms_stats.relation_stats_backup b
+ WHERE b.id = $1
+ AND b.relid = restore_relid;
+ END IF;
+ RETURN NEXT restore_relid;
+ END LOOP;
+
+ FOR restore_relid, restore_attnum, restore_type, cur_type IN
+ SELECT c.oid, a.attnum, b.statypid, a.atttypid
+ FROM pg_class c
+ JOIN dbms_stats.column_stats_backup b ON (c.oid = b.starelid)
+ JOIN pg_attribute a ON (b.starelid = attrelid
+ AND b.staattnum = a.attnum)
+ WHERE b.id = $1
+ LOOP
+ IF restore_type <> cur_type THEN
+ SELECT attname INTO restore_attname
+ FROM pg_catalog.pg_attribute
+ WHERE attrelid = restore_relid
+ AND attnum = restore_attnum;
+ RAISE WARNING 'skip "%.%" because of type mismatch: "%" in backup and "%" in database',
+ restore_relid, restore_attname, restore_type, cur_type;
+ ELSE
+ DELETE FROM dbms_stats._column_stats_locked
+ WHERE starelid = restore_relid
+ AND staattnum = restore_attnum;
+ INSERT INTO dbms_stats._column_stats_locked
+ SELECT starelid, staattnum, stainherit,
+ stanullfrac, stawidth, stadistinct,
+ stakind1, stakind2, stakind3, stakind4,
+ staop1, staop2, staop3, staop4,
+ stanumbers1, stanumbers2, stanumbers3, stanumbers4,
+ stavalues1, stavalues2, stavalues3, stavalues4
+ FROM dbms_stats.column_stats_backup
+ WHERE id = $1
+ AND starelid = restore_relid
+ AND staattnum = restore_attnum;
+ END IF;
+ END LOOP;
+
+END;
+$$
+LANGUAGE plpgsql STRICT;
+
+--
+-- LOCK_STATS: Statistic lock functions
+--
+
+CREATE FUNCTION dbms_stats.lock(
+ relid regclass,
+ attname text
+) RETURNS regclass AS
+$$
+DECLARE
+ lock_relkind "char";
+ set_attnum int2;
+ r record;
+BEGIN
+ IF $1 IS NULL THEN
+ RAISE EXCEPTION 'relation is required';
+ END IF;
+ IF $2 IS NULL THEN
+ RETURN dbms_stats.lock($1);
+ END IF;
+ SELECT relkind INTO lock_relkind FROM pg_catalog.pg_class WHERE oid = $1;
+ IF NOT FOUND THEN
+ RAISE EXCEPTION 'relation "%" does not exist', $1;
+ END IF;
+ IF NOT dbms_stats.is_target_relkind(lock_relkind) THEN
+ RAISE EXCEPTION '"%" is not a table nor an index', $1;
+ END IF;
+ IF EXISTS(SELECT * FROM pg_catalog.pg_index WHERE lock_relkind = 'i' AND indexrelid = $1 AND indexprs IS NULL) THEN
+ RAISE EXCEPTION '"%" is not an indexes on expressions', $1;
+ END IF;
+ IF dbms_stats.is_system_catalog($1) THEN
+ RAISE EXCEPTION 'can not lock statistics of system catalog "%"', $1;
+ END IF;
+ SELECT a.attnum INTO set_attnum FROM pg_catalog.pg_attribute a
+ WHERE a.attrelid = $1 AND a.attname = $2;
+ IF set_attnum IS NULL THEN
+ RAISE EXCEPTION 'column "%" of "%" does not exist', $2, $1;
+ END IF;
+
+ LOCK dbms_stats._relation_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+ LOCK dbms_stats._column_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+
+ /*
+ * If we don't have per-table statistics, create new one which has NULL for
+ * every statistic column_stats_effective.
+ */
+ IF NOT EXISTS(SELECT * FROM dbms_stats._relation_stats_locked ru
+ WHERE ru.relid = $1) THEN
+ INSERT INTO dbms_stats._relation_stats_locked
+ SELECT $1, dbms_stats.relname(nspname, relname),
+ NULL, NULL, NULL, NULL, NULL
+ FROM pg_catalog.pg_class c, pg_catalog.pg_namespace n
+ WHERE c.relnamespace = n.oid
+ AND c.oid = $1;
+ END IF;
+
+ /*
+ * Process for per-column statistics
+ */
+ FOR r IN
+ SELECT stainherit, stanullfrac, stawidth, stadistinct,
+ stakind1, stakind2, stakind3, stakind4,
+ staop1, staop2, staop3, staop4,
+ stanumbers1, stanumbers2, stanumbers3, stanumbers4,
+ stavalues1, stavalues2, stavalues3, stavalues4
+ FROM dbms_stats.column_stats_effective
+ WHERE starelid = $1
+ AND staattnum = set_attnum
+ LOOP
+ UPDATE dbms_stats._column_stats_locked c
+ SET stanullfrac = r.stanullfrac,
+ stawidth = r.stawidth,
+ stadistinct = r.stadistinct,
+ stakind1 = r.stakind1,
+ stakind2 = r.stakind2,
+ stakind3 = r.stakind3,
+ stakind4 = r.stakind4,
+ staop1 = r.staop1,
+ staop2 = r.staop2,
+ staop3 = r.staop3,
+ staop4 = r.staop4,
+ stanumbers1 = r.stanumbers1,
+ stanumbers2 = r.stanumbers2,
+ stanumbers3 = r.stanumbers3,
+ stanumbers4 = r.stanumbers4,
+ stavalues1 = r.stavalues1,
+ stavalues2 = r.stavalues2,
+ stavalues3 = r.stavalues3,
+ stavalues4 = r.stavalues4
+ WHERE c.starelid = $1
+ AND c.staattnum = set_attnum
+ AND c.stainherit = r.stainherit;
+
+ IF NOT FOUND THEN
+ INSERT INTO dbms_stats._column_stats_locked
+ VALUES ($1,
+ set_attnum,
+ r.stainherit,
+ r.stanullfrac,
+ r.stawidth,
+ r.stadistinct,
+ r.stakind1,
+ r.stakind2,
+ r.stakind3,
+ r.stakind4,
+ r.staop1,
+ r.staop2,
+ r.staop3,
+ r.staop4,
+ r.stanumbers1,
+ r.stanumbers2,
+ r.stanumbers3,
+ r.stanumbers4,
+ r.stavalues1,
+ r.stavalues2,
+ r.stavalues3,
+ r.stavalues4);
+ END IF;
+ END LOOP;
+
+ /* If we don't have statistic at all, raise error. */
+ IF NOT FOUND THEN
+ RAISE EXCEPTION 'statistic for column "%" of "%" does not exist', $2, $1::regclass;
+ END IF;
+
+ RETURN $1;
+END;
+$$
+LANGUAGE plpgsql;
+
+CREATE FUNCTION dbms_stats.lock(relid regclass)
+ RETURNS regclass AS
+$$
+DECLARE
+ lock_relkind "char";
+ i record;
+BEGIN
+ IF $1 IS NULL THEN
+ RAISE EXCEPTION 'relation is required';
+ END IF;
+ SELECT relkind INTO lock_relkind FROM pg_catalog.pg_class WHERE oid = $1;
+ IF NOT FOUND THEN
+ RAISE EXCEPTION 'relation "%" does not exist', $1;
+ END IF;
+ IF NOT dbms_stats.is_target_relkind(lock_relkind) THEN
+ RAISE EXCEPTION 'can not lock statistics of "%" with relkind "%"', $1, lock_relkind
+ USING HINT = 'only tables and indexes are supported';
+ END IF;
+ IF dbms_stats.is_system_catalog($1) THEN
+ RAISE EXCEPTION 'can not lock statistics of system catalog "%"', $1;
+ END IF;
+
+ LOCK dbms_stats._relation_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+ LOCK dbms_stats._column_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+
+ UPDATE dbms_stats._relation_stats_locked r
+ SET relname = dbms_stats.relname(nspname, c.relname),
+ relpages = v.relpages,
+ reltuples = v.reltuples,
+ curpages = v.curpages,
+ last_analyze = v.last_analyze,
+ last_autoanalyze = v.last_autoanalyze
+ FROM pg_catalog.pg_class c,
+ pg_catalog.pg_namespace n,
+ dbms_stats.relation_stats_effective v
+ WHERE r.relid = $1
+ AND c.oid = $1
+ AND c.relnamespace = n.oid
+ AND v.relid = $1;
+ IF NOT FOUND THEN
+ INSERT INTO dbms_stats._relation_stats_locked
+ SELECT $1, dbms_stats.relname(nspname, c.relname),
+ v.relpages, v.reltuples, v.curpages,
+ v.last_analyze, v.last_autoanalyze
+ FROM pg_catalog.pg_class c,
+ pg_catalog.pg_namespace n,
+ dbms_stats.relation_stats_effective v
+ WHERE c.oid = $1
+ AND c.relnamespace = n.oid
+ AND v.relid = $1;
+ END IF;
+
+ IF EXISTS(SELECT *
+ FROM pg_catalog.pg_class c LEFT JOIN pg_catalog.pg_index ind
+ ON c.oid = ind.indexrelid
+ WHERE c.oid = $1
+ AND c.relkind = 'i'
+ AND ind.indexprs IS NULL) THEN
+ RETURN $1;
+ END IF;
+
+ FOR i IN
+ SELECT staattnum, stainherit, stanullfrac,
+ stawidth, stadistinct,
+ stakind1, stakind2, stakind3, stakind4,
+ staop1, staop2, staop3, staop4,
+ stanumbers1, stanumbers2, stanumbers3, stanumbers4,
+ stavalues1, stavalues2, stavalues3, stavalues4
+ FROM dbms_stats.column_stats_effective
+ WHERE starelid = $1
+ LOOP
+ UPDATE dbms_stats._column_stats_locked c
+ SET stanullfrac = i.stanullfrac,
+ stawidth = i.stawidth,
+ stadistinct = i.stadistinct,
+ stakind1 = i.stakind1,
+ stakind2 = i.stakind2,
+ stakind3 = i.stakind3,
+ stakind4 = i.stakind4,
+ staop1 = i.staop1,
+ staop2 = i.staop2,
+ staop3 = i.staop3,
+ staop4 = i.staop4,
+ stanumbers1 = i.stanumbers1,
+ stanumbers2 = i.stanumbers2,
+ stanumbers3 = i.stanumbers3,
+ stanumbers4 = i.stanumbers4,
+ stavalues1 = i.stavalues1,
+ stavalues2 = i.stavalues2,
+ stavalues3 = i.stavalues3,
+ stavalues4 = i.stavalues4
+ WHERE c.starelid = $1
+ AND c.staattnum = i.staattnum
+ AND c.stainherit = i.stainherit;
+
+ IF NOT FOUND THEN
+ INSERT INTO dbms_stats._column_stats_locked
+ VALUES ($1,
+ i.staattnum,
+ i.stainherit,
+ i.stanullfrac,
+ i.stawidth,
+ i.stadistinct,
+ i.stakind1,
+ i.stakind2,
+ i.stakind3,
+ i.stakind4,
+ i.staop1,
+ i.staop2,
+ i.staop3,
+ i.staop4,
+ i.stanumbers1,
+ i.stanumbers2,
+ i.stanumbers3,
+ i.stanumbers4,
+ i.stavalues1,
+ i.stavalues2,
+ i.stavalues3,
+ i.stavalues4);
+ END IF;
+ END LOOP;
+
+ RETURN $1;
+END;
+$$
+LANGUAGE plpgsql;
+
+CREATE FUNCTION dbms_stats.lock_database_stats()
+ RETURNS SETOF regclass AS
+$$
+SELECT dbms_stats.lock(c.oid)
+ FROM (SELECT oid
+ FROM pg_catalog.pg_class
+ WHERE NOT dbms_stats.is_system_catalog(oid)
+ AND dbms_stats.is_target_relkind(relkind)
+ ORDER BY pg_class.oid
+ ) c;
+$$
+LANGUAGE sql;
+
+CREATE FUNCTION dbms_stats.lock_schema_stats(
+ schemaname text
+) RETURNS SETOF regclass AS
+$$
+BEGIN
+ IF NOT EXISTS(SELECT * FROM pg_namespace WHERE nspname = $1) THEN
+ RAISE EXCEPTION 'schema "%" does not exist', $1;
+ END IF;
+ IF dbms_stats.is_system_schema($1) THEN
+ RAISE EXCEPTION 'can not lock statistics of relation in system schema "%"', $1;
+ END IF;
+
+ RETURN QUERY
+ SELECT dbms_stats.lock(cn.oid)
+ FROM (SELECT c.oid
+ FROM pg_class c, pg_namespace n
+ WHERE c.relnamespace = n.oid
+ AND dbms_stats.is_target_relkind(c.relkind)
+ AND n.nspname = $1
+ ORDER BY c.oid
+ ) cn;
+END;
+$$
+LANGUAGE plpgsql STRICT;
+
+CREATE FUNCTION dbms_stats.lock_table_stats(relid regclass)
+ RETURNS regclass AS
+$$
+SELECT dbms_stats.lock($1)
+$$
+LANGUAGE sql STRICT;
+
+CREATE FUNCTION dbms_stats.lock_table_stats(
+ schemaname text,
+ tablename text
+) RETURNS regclass AS
+$$
+SELECT dbms_stats.lock(dbms_stats.relname($1, $2)::regclass)
+$$
+LANGUAGE sql STRICT;
+
+CREATE FUNCTION dbms_stats.lock_column_stats(
+ relid regclass,
+ attname text
+) RETURNS regclass AS
+$$
+SELECT dbms_stats.lock($1, $2)
+$$
+LANGUAGE sql STRICT;
+
+CREATE FUNCTION dbms_stats.lock_column_stats(
+ schemaname text,
+ tablename text,
+ attname text
+) RETURNS regclass AS
+$$
+SELECT dbms_stats.lock(dbms_stats.relname($1, $2)::regclass, $3)
+$$
+LANGUAGE sql STRICT;
+
+--
+-- UNLOCK_STATS: Statistic unlock functions
+--
+
+CREATE FUNCTION dbms_stats.unlock(
+ relid regclass DEFAULT NULL,
+ attname text DEFAULT NULL
+) RETURNS SETOF regclass AS
+$$
+DECLARE
+ set_attnum int2;
+ unlock_id int8;
+BEGIN
+ IF $1 IS NULL AND $2 IS NOT NULL THEN
+ RAISE EXCEPTION 'relation is required';
+ END IF;
+ SELECT a.attnum INTO set_attnum FROM pg_catalog.pg_attribute a
+ WHERE a.attrelid = $1 AND a.attname = $2;
+ IF $2 IS NOT NULL AND set_attnum IS NULL THEN
+ RAISE EXCEPTION 'column "%" of "%" does not exist', $2, $1;
+ END IF;
+
+ LOCK dbms_stats._relation_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+ LOCK dbms_stats._column_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+
+ DELETE FROM dbms_stats._column_stats_locked
+ WHERE (starelid = $1 OR $1 IS NULL)
+ AND (staattnum = set_attnum OR $2 IS NULL);
+
+ IF $1 IS NOT NULL AND $2 IS NOT NULL THEN
+ RETURN QUERY
+ SELECT $1;
+ END IF;
+ FOR unlock_id IN
+ SELECT ru.relid
+ FROM dbms_stats._relation_stats_locked ru
+ WHERE (ru.relid = $1 OR $1 IS NULL) AND ($2 IS NULL)
+ ORDER BY ru.relid
+ LOOP
+ DELETE FROM dbms_stats._relation_stats_locked ru
+ WHERE ru.relid = unlock_id;
+ RETURN NEXT unlock_id;
+ END LOOP;
+END;
+$$
+LANGUAGE plpgsql;
+
+CREATE FUNCTION dbms_stats.unlock_database_stats()
+ RETURNS SETOF regclass AS
+$$
+DECLARE
+ unlock_id int8;
+BEGIN
+ LOCK dbms_stats._relation_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+ LOCK dbms_stats._column_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+
+ FOR unlock_id IN
+ SELECT relid
+ FROM dbms_stats._relation_stats_locked
+ ORDER BY relid
+ LOOP
+ DELETE FROM dbms_stats._relation_stats_locked
+ WHERE relid = unlock_id;
+ RETURN NEXT unlock_id;
+ END LOOP;
+END;
+$$
+LANGUAGE plpgsql STRICT;
+
+CREATE FUNCTION dbms_stats.unlock_schema_stats(
+ schemaname text
+) RETURNS SETOF regclass AS
+$$
+DECLARE
+ unlock_id int8;
+BEGIN
+ IF NOT EXISTS(SELECT * FROM pg_namespace WHERE nspname = $1) THEN
+ RAISE EXCEPTION 'schema "%" does not exist', $1;
+ END IF;
+ IF dbms_stats.is_system_schema($1) THEN
+ RAISE EXCEPTION 'can not unlock statistics of relation in system schema "%"', $1;
+ END IF;
+
+ LOCK dbms_stats._relation_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+ LOCK dbms_stats._column_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+
+ FOR unlock_id IN
+ SELECT relid
+ FROM dbms_stats._relation_stats_locked, pg_class c, pg_namespace n
+ WHERE relid = c.oid
+ AND c.relnamespace = n.oid
+ AND n.nspname = $1
+ ORDER BY relid
+ LOOP
+ DELETE FROM dbms_stats._relation_stats_locked
+ WHERE relid = unlock_id;
+ RETURN NEXT unlock_id;
+ END LOOP;
+END;
+$$
+LANGUAGE plpgsql STRICT;
+
+CREATE FUNCTION dbms_stats.unlock_table_stats(relid regclass)
+ RETURNS SETOF regclass AS
+$$
+
+LOCK dbms_stats._relation_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+LOCK dbms_stats._column_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+
+DELETE FROM dbms_stats._relation_stats_locked
+ WHERE relid = $1
+ RETURNING relid::regclass
+$$
+LANGUAGE sql STRICT;
+
+CREATE FUNCTION dbms_stats.unlock_table_stats(
+ schemaname text,
+ tablename text
+) RETURNS SETOF regclass AS
+$$
+
+LOCK dbms_stats._relation_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+LOCK dbms_stats._column_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+
+DELETE FROM dbms_stats._relation_stats_locked
+ WHERE relid = dbms_stats.relname($1, $2)::regclass
+ RETURNING relid::regclass
+$$
+LANGUAGE sql STRICT;
+
+CREATE FUNCTION dbms_stats.unlock_column_stats(
+ relid regclass,
+ attname text
+) RETURNS SETOF regclass AS
+$$
+DECLARE
+ set_attnum int2;
+BEGIN
+ SELECT a.attnum INTO set_attnum FROM pg_catalog.pg_attribute a
+ WHERE a.attrelid = $1 AND a.attname = $2;
+ IF $2 IS NOT NULL AND set_attnum IS NULL THEN
+ RAISE EXCEPTION 'column "%" of "%" does not exist', $2, $1;
+ END IF;
+
+ LOCK dbms_stats._relation_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+ LOCK dbms_stats._column_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+
+ DELETE FROM dbms_stats._column_stats_locked
+ WHERE starelid = $1
+ AND staattnum = set_attnum;
+ RETURN QUERY
+ SELECT $1;
+END;
+$$
+LANGUAGE plpgsql STRICT;
+
+CREATE FUNCTION dbms_stats.unlock_column_stats(
+ schemaname text,
+ tablename text,
+ attname text
+) RETURNS SETOF regclass AS
+$$
+DECLARE
+ set_attnum int2;
+BEGIN
+ SELECT a.attnum INTO set_attnum FROM pg_catalog.pg_attribute a
+ WHERE a.attrelid = dbms_stats.relname($1, $2)::regclass
+ AND a.attname = $3;
+ IF $3 IS NOT NULL AND set_attnum IS NULL THEN
+ RAISE EXCEPTION 'column "%" of "%.%" does not exist', $3, $1, $2;
+ END IF;
+
+ LOCK dbms_stats._relation_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+ LOCK dbms_stats._column_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+
+ DELETE FROM dbms_stats._column_stats_locked
+ WHERE starelid = dbms_stats.relname($1, $2)::regclass
+ AND staattnum = set_attnum;
+ RETURN QUERY
+ SELECT dbms_stats.relname($1, $2)::regclass;
+END;
+$$
+LANGUAGE plpgsql STRICT;
+
+--
+-- IMPORT_STATS: Statistic import functions
+--
+
+CREATE FUNCTION dbms_stats.import(
+ nspname text DEFAULT NULL,
+ relid regclass DEFAULT NULL,
+ attname text DEFAULT NULL,
+ src text DEFAULT NULL
+) RETURNS void AS
+'MODULE_PATHNAME', 'dbms_stats_import'
+LANGUAGE C;
+
+CREATE FUNCTION dbms_stats.import_database_stats(src text)
+ RETURNS void AS
+$$
+SELECT dbms_stats.import(NULL, NULL, NULL, $1)
+$$
+LANGUAGE sql;
+
+CREATE FUNCTION dbms_stats.import_schema_stats(
+ schemaname text,
+ src text
+) RETURNS void AS
+$$
+SELECT dbms_stats.import($1, NULL, NULL, $2)
+$$
+LANGUAGE sql;
+
+CREATE FUNCTION dbms_stats.import_table_stats(
+ relid regclass,
+ src text
+) RETURNS void AS
+$$
+SELECT dbms_stats.import(NULL, $1, NULL, $2)
+$$
+LANGUAGE sql;
+
+CREATE FUNCTION dbms_stats.import_table_stats(
+ schemaname text,
+ tablename text,
+ src text
+) RETURNS void AS
+$$
+SELECT dbms_stats.import(NULL, dbms_stats.relname($1, $2)::regclass, NULL, $3)
+$$
+LANGUAGE sql;
+
+CREATE FUNCTION dbms_stats.import_column_stats(
+ relid regclass,
+ attname text,
+ src text
+) RETURNS void AS
+$$
+SELECT dbms_stats.import(NULL, $1, $2, $3)
+$$
+LANGUAGE sql;
+
+CREATE FUNCTION dbms_stats.import_column_stats(
+ schemaname text,
+ tablename text,
+ attname text,
+ src text
+) RETURNS void AS
+$$
+SELECT dbms_stats.import(NULL, dbms_stats.relname($1, $2)::regclass, $3, $4)
+$$
+LANGUAGE sql;
+
+--
+-- PURGE_STATS: Statistic purge function
+--
+
+CREATE OR REPLACE FUNCTION dbms_stats.purge_stats(
+ backup_id int8,
+ force bool DEFAULT false
+) RETURNS SETOF dbms_stats.backup_history AS
+$$
+DECLARE
+ delete_id int8;
+ deleted dbms_stats.backup_history;
+BEGIN
+ IF $1 IS NULL THEN
+ RAISE EXCEPTION 'backup id is required';
+ END IF;
+ IF $2 IS NULL THEN
+ RAISE EXCEPTION 'force is not null';
+ END IF;
+
+ LOCK dbms_stats.backup_history IN SHARE UPDATE EXCLUSIVE MODE;
+ LOCK dbms_stats.relation_stats_backup IN SHARE UPDATE EXCLUSIVE MODE;
+ LOCK dbms_stats.column_stats_backup IN SHARE UPDATE EXCLUSIVE MODE;
+
+ IF NOT EXISTS(SELECT * FROM dbms_stats.backup_history WHERE id = $1) THEN
+ RAISE EXCEPTION 'backup id % does not exist', $1;
+ END IF;
+ IF NOT $2 AND NOT EXISTS(SELECT *
+ FROM dbms_stats.backup_history
+ WHERE unit = 'd'
+ AND id > $1) THEN
+ RAISE WARNING 'at least one database-wise backup must be remain'
+ USING HINT = 'use true as 2nd parameter, if you want to purge forcibly';
+ RETURN;
+ END IF;
+
+ FOR deleted IN
+ SELECT * FROM dbms_stats.backup_history
+ WHERE id <= $1
+ ORDER BY id
+ LOOP
+ DELETE FROM dbms_stats.backup_history
+ WHERE id = deleted.id;
+ RETURN NEXT deleted;
+ END LOOP;
+END;
+$$
+LANGUAGE plpgsql;
+
+GRANT USAGE ON schema dbms_stats TO PUBLIC;
+--
--- /dev/null
+/* pg_dbms_stats/pg_dbms_stats--1.0.sql */
+
+-- complain if script is sourced in psql, rather than via CREATE EXTENSION
+\echo Use "CREATE EXTENSION dbms_stats" to load this file. \quit
+
+-- define alias of anyarray type because parser does not allow to use
+-- anyarray in type definitions.
+--
+CREATE FUNCTION dbms_stats.anyarray_in(cstring) RETURNS dbms_stats.anyarray
+ AS 'anyarray_in' LANGUAGE internal STRICT IMMUTABLE;
+CREATE FUNCTION dbms_stats.anyarray_out(dbms_stats.anyarray) RETURNS cstring
+ AS 'anyarray_out' LANGUAGE internal STRICT IMMUTABLE;
+CREATE FUNCTION dbms_stats.anyarray_recv(internal) RETURNS dbms_stats.anyarray
+ AS 'MODULE_PATHNAME', 'dbms_stats_array_recv' LANGUAGE C STRICT IMMUTABLE;
+CREATE FUNCTION dbms_stats.anyarray_send(dbms_stats.anyarray) RETURNS bytea
+ AS 'anyarray_send' LANGUAGE internal STRICT IMMUTABLE;
+CREATE TYPE dbms_stats.anyarray (
+ INPUT = dbms_stats.anyarray_in,
+ OUTPUT = dbms_stats.anyarray_out,
+ RECEIVE = dbms_stats.anyarray_recv,
+ SEND = dbms_stats.anyarray_send,
+ INTERNALLENGTH = VARIABLE,
+ ALIGNMENT = double,
+ STORAGE = extended,
+ CATEGORY = 'P'
+);
+
+--
+-- User defined stats tables
+--
+
+CREATE TABLE dbms_stats._relation_stats_locked (
+ relid oid NOT NULL,
+ relname text NOT NULL,
+ relpages int4,
+ reltuples float4,
+ relallvisible int4,
+ curpages int4,
+ last_analyze timestamp with time zone,
+ last_autoanalyze timestamp with time zone,
+ PRIMARY KEY (relid)
+);
+
+CREATE TABLE dbms_stats._column_stats_locked (
+ starelid oid NOT NULL,
+ staattnum int2 NOT NULL,
+ stainherit bool NOT NULL,
+ stanullfrac float4,
+ stawidth int4,
+ stadistinct float4,
+ stakind1 int2,
+ stakind2 int2,
+ stakind3 int2,
+ stakind4 int2,
+ stakind5 int2,
+ staop1 oid,
+ staop2 oid,
+ staop3 oid,
+ staop4 oid,
+ staop5 oid,
+ stanumbers1 float4[],
+ stanumbers2 float4[],
+ stanumbers3 float4[],
+ stanumbers4 float4[],
+ stanumbers5 float4[],
+ stavalues1 dbms_stats.anyarray,
+ stavalues2 dbms_stats.anyarray,
+ stavalues3 dbms_stats.anyarray,
+ stavalues4 dbms_stats.anyarray,
+ stavalues5 dbms_stats.anyarray,
+ PRIMARY KEY (starelid, staattnum, stainherit),
+ FOREIGN KEY (starelid) REFERENCES dbms_stats._relation_stats_locked (relid) ON DELETE CASCADE
+);
+
+--
+-- Statistics backup tables
+--
+
+CREATE TABLE dbms_stats.backup_history (
+ id serial8 PRIMARY KEY,
+ time timestamp with time zone NOT NULL,
+ unit char(1) NOT NULL,
+ comment text
+);
+
+CREATE TABLE dbms_stats.relation_stats_backup (
+ id int8 NOT NULL,
+ relid oid NOT NULL,
+ relname text NOT NULL,
+ relpages int4 NOT NULL,
+ reltuples float4 NOT NULL,
+ relallvisible int4 NOT NULL,
+ curpages int4 NOT NULL,
+ last_analyze timestamp with time zone,
+ last_autoanalyze timestamp with time zone,
+ PRIMARY KEY (id, relid),
+ FOREIGN KEY (id) REFERENCES dbms_stats.backup_history (id) ON DELETE CASCADE
+);
+
+CREATE TABLE dbms_stats.column_stats_backup (
+ id int8 NOT NULL,
+ statypid oid NOT NULL,
+ starelid oid NOT NULL,
+ staattnum int2 NOT NULL,
+ stainherit bool NOT NULL,
+ stanullfrac float4 NOT NULL,
+ stawidth int4 NOT NULL,
+ stadistinct float4 NOT NULL,
+ stakind1 int2 NOT NULL,
+ stakind2 int2 NOT NULL,
+ stakind3 int2 NOT NULL,
+ stakind4 int2 NOT NULL,
+ stakind5 int2 NOT NULL,
+ staop1 oid NOT NULL,
+ staop2 oid NOT NULL,
+ staop3 oid NOT NULL,
+ staop4 oid NOT NULL,
+ staop5 oid NOT NULL,
+ stanumbers1 float4[],
+ stanumbers2 float4[],
+ stanumbers3 float4[],
+ stanumbers4 float4[],
+ stanumbers5 float4[],
+ stavalues1 dbms_stats.anyarray,
+ stavalues2 dbms_stats.anyarray,
+ stavalues3 dbms_stats.anyarray,
+ stavalues4 dbms_stats.anyarray,
+ stavalues5 dbms_stats.anyarray,
+ PRIMARY KEY (id, starelid, staattnum, stainherit),
+ FOREIGN KEY (id) REFERENCES dbms_stats.backup_history (id) ON DELETE CASCADE,
+ FOREIGN KEY (id, starelid) REFERENCES dbms_stats.relation_stats_backup (id, relid) ON DELETE CASCADE
+);
+
+--
+-- Functions
+--
+
+CREATE FUNCTION dbms_stats.relname(nspname text, relname text)
+RETURNS text AS
+$$SELECT quote_ident($1) || '.' || quote_ident($2)$$
+LANGUAGE sql STABLE STRICT;
+
+CREATE FUNCTION dbms_stats.is_system_schema(schemaname text)
+RETURNS boolean AS
+'MODULE_PATHNAME', 'dbms_stats_is_system_schema'
+LANGUAGE C IMMUTABLE STRICT;
+
+CREATE FUNCTION dbms_stats.is_system_catalog(relid regclass)
+RETURNS boolean AS
+'MODULE_PATHNAME', 'dbms_stats_is_system_catalog'
+LANGUAGE C STABLE;
+
+CREATE FUNCTION dbms_stats.is_target_relkind(relkind "char")
+RETURNS boolean AS
+$$SELECT $1 IN ('r', 'i', 'f')$$
+LANGUAGE sql STABLE;
+
+CREATE FUNCTION dbms_stats.merge(
+ lhs dbms_stats._column_stats_locked,
+ rhs pg_catalog.pg_statistic
+) RETURNS dbms_stats._column_stats_locked AS
+'MODULE_PATHNAME', 'dbms_stats_merge'
+LANGUAGE C STABLE;
+
+--
+-- Statistics views for internal use
+-- These views are used to merge authentic stats and dummy stats by hook
+-- function, so we don't grant SELECT privilege to PUBLIC.
+--
+
+CREATE VIEW dbms_stats.relation_stats_effective AS
+ SELECT
+ c.oid AS relid,
+ dbms_stats.relname(nspname, c.relname) AS relname,
+ COALESCE(v.relpages, c.relpages) AS relpages,
+ COALESCE(v.reltuples, c.reltuples) AS reltuples,
+ COALESCE(v.relallvisible, c.relallvisible) AS relallvisible,
+ COALESCE(v.curpages,
+ (pg_relation_size(c.oid) / current_setting('block_size')::int4)::int4)
+ AS curpages,
+ COALESCE(v.last_analyze,
+ pg_catalog.pg_stat_get_last_analyze_time(c.oid))
+ AS last_analyze,
+ COALESCE(v.last_autoanalyze,
+ pg_catalog.pg_stat_get_last_autoanalyze_time(c.oid))
+ AS last_autoanalyze
+ FROM pg_catalog.pg_class c
+ JOIN pg_catalog.pg_namespace n
+ ON c.relnamespace = n.oid
+ LEFT JOIN dbms_stats._relation_stats_locked v
+ ON v.relid = c.oid
+ WHERE dbms_stats.is_target_relkind(c.relkind)
+ AND NOT dbms_stats.is_system_schema(nspname);
+
+CREATE VIEW dbms_stats.column_stats_effective AS
+ SELECT * FROM (
+ SELECT (dbms_stats.merge(v, s)).*
+ FROM pg_catalog.pg_statistic s
+ FULL JOIN dbms_stats._column_stats_locked v
+ USING (starelid, staattnum, stainherit)
+ WHERE NOT dbms_stats.is_system_catalog(starelid)
+ ) m
+ WHERE starelid IS NOT NULL;
+
+--
+-- Statistics views for user use (including non-superusers)
+-- These views allow users to see dummy statistics about tables which the
+-- user has SELECT privilege.
+--
+
+CREATE VIEW dbms_stats.relation_stats_locked
+ AS SELECT *
+ FROM dbms_stats._relation_stats_locked;
+
+GRANT SELECT ON dbms_stats.relation_stats_locked TO PUBLIC;
+
+CREATE VIEW dbms_stats.column_stats_locked
+ AS SELECT *
+ FROM dbms_stats._column_stats_locked
+ WHERE has_column_privilege(starelid, staattnum, 'SELECT');
+
+GRANT SELECT ON dbms_stats.column_stats_locked TO PUBLIC;
+
+--
+-- Note: This view is copied from pg_stats in
+-- src/backend/catalog/system_views.sql in core source tree of version
+-- 9.2, and customized for pg_dbms_stats. Changes from orignal one are:
+-- - rename from pg_stats to dbms_stats.stats by a view name.
+-- - changed the table name from pg_statistic to dbms_stats.column_stats_effective.
+--
+CREATE VIEW dbms_stats.stats AS
+ SELECT
+ nspname AS schemaname,
+ relname AS tablename,
+ attname AS attname,
+ stainherit AS inherited,
+ stanullfrac AS null_frac,
+ stawidth AS avg_width,
+ stadistinct AS n_distinct,
+ CASE
+ WHEN stakind1 = 1 THEN stavalues1
+ WHEN stakind2 = 1 THEN stavalues2
+ WHEN stakind3 = 1 THEN stavalues3
+ WHEN stakind4 = 1 THEN stavalues4
+ WHEN stakind5 = 1 THEN stavalues5
+ END AS most_common_vals,
+ CASE
+ WHEN stakind1 = 1 THEN stanumbers1
+ WHEN stakind2 = 1 THEN stanumbers2
+ WHEN stakind3 = 1 THEN stanumbers3
+ WHEN stakind4 = 1 THEN stanumbers4
+ WHEN stakind5 = 1 THEN stanumbers5
+ END AS most_common_freqs,
+ CASE
+ WHEN stakind1 = 2 THEN stavalues1
+ WHEN stakind2 = 2 THEN stavalues2
+ WHEN stakind3 = 2 THEN stavalues3
+ WHEN stakind4 = 2 THEN stavalues4
+ WHEN stakind5 = 2 THEN stavalues5
+ END AS histogram_bounds,
+ CASE
+ WHEN stakind1 = 3 THEN stanumbers1[1]
+ WHEN stakind2 = 3 THEN stanumbers2[1]
+ WHEN stakind3 = 3 THEN stanumbers3[1]
+ WHEN stakind4 = 3 THEN stanumbers4[1]
+ WHEN stakind5 = 3 THEN stanumbers5[1]
+ END AS correlation,
+ CASE
+ WHEN stakind1 = 4 THEN stavalues1
+ WHEN stakind2 = 4 THEN stavalues2
+ WHEN stakind3 = 4 THEN stavalues3
+ WHEN stakind4 = 4 THEN stavalues4
+ WHEN stakind5 = 4 THEN stavalues5
+ END AS most_common_elems,
+ CASE
+ WHEN stakind1 = 4 THEN stanumbers1
+ WHEN stakind2 = 4 THEN stanumbers2
+ WHEN stakind3 = 4 THEN stanumbers3
+ WHEN stakind4 = 4 THEN stanumbers4
+ WHEN stakind5 = 4 THEN stanumbers5
+ END AS most_common_elem_freqs,
+ CASE
+ WHEN stakind1 = 5 THEN stanumbers1
+ WHEN stakind2 = 5 THEN stanumbers2
+ WHEN stakind3 = 5 THEN stanumbers3
+ WHEN stakind4 = 5 THEN stanumbers4
+ WHEN stakind5 = 5 THEN stanumbers5
+ END AS elem_count_histogram
+ FROM dbms_stats.column_stats_effective s JOIN pg_class c ON (c.oid = s.starelid)
+ JOIN pg_attribute a ON (c.oid = attrelid AND attnum = s.staattnum)
+ LEFT JOIN pg_namespace n ON (n.oid = c.relnamespace)
+ WHERE NOT attisdropped AND has_column_privilege(c.oid, a.attnum, 'select');
+
+GRANT SELECT ON dbms_stats.stats TO PUBLIC;
+
+--
+-- Utility functions
+--
+
+CREATE FUNCTION dbms_stats.invalidate_relation_cache()
+ RETURNS trigger AS
+ 'MODULE_PATHNAME', 'dbms_stats_invalidate_relation_cache'
+ LANGUAGE C;
+
+-- Invalidate cached plans when dbms_stats._relation_stats_locked is modified.
+CREATE TRIGGER invalidate_relation_cache
+ BEFORE INSERT OR DELETE OR UPDATE
+ ON dbms_stats._relation_stats_locked
+ FOR EACH ROW EXECUTE PROCEDURE dbms_stats.invalidate_relation_cache();
+
+CREATE FUNCTION dbms_stats.invalidate_column_cache()
+ RETURNS trigger AS
+ 'MODULE_PATHNAME', 'dbms_stats_invalidate_column_cache'
+ LANGUAGE C;
+
+-- Invalidate cached plans when dbms_stats._column_stats_locked is modified.
+CREATE TRIGGER invalidate_column_cache
+ BEFORE INSERT OR DELETE OR UPDATE
+ ON dbms_stats._column_stats_locked
+ FOR EACH ROW EXECUTE PROCEDURE dbms_stats.invalidate_column_cache();
+
+--
+-- BACKUP_STATS: Statistic backup functions
+--
+
+CREATE FUNCTION dbms_stats.backup(
+ backup_id int8,
+ relid regclass,
+ attnum int2
+) RETURNS int8 AS
+$$
+INSERT INTO dbms_stats.relation_stats_backup
+ SELECT $1, v.relid, v.relname, v.relpages, v.reltuples, v.relallvisible,
+ v.curpages, v.last_analyze, v.last_autoanalyze
+ FROM pg_catalog.pg_class c,
+ dbms_stats.relation_stats_effective v
+ WHERE c.oid = v.relid
+ AND dbms_stats.is_target_relkind(relkind)
+ AND NOT dbms_stats.is_system_catalog(v.relid)
+ AND (v.relid = $2 OR $2 IS NULL);
+
+INSERT INTO dbms_stats.column_stats_backup
+ SELECT $1, atttypid, s.*
+ FROM pg_catalog.pg_class c,
+ dbms_stats.column_stats_effective s,
+ pg_catalog.pg_attribute a
+ WHERE c.oid = starelid
+ AND starelid = attrelid
+ AND staattnum = attnum
+ AND dbms_stats.is_target_relkind(relkind)
+ AND NOT dbms_stats.is_system_catalog(c.oid)
+ AND ($2 IS NULL OR starelid = $2)
+ AND ($3 IS NULL OR staattnum = $3);
+
+SELECT $1;
+$$
+LANGUAGE sql;
+
+CREATE FUNCTION dbms_stats.backup(
+ relid regclass DEFAULT NULL,
+ attname text DEFAULT NULL,
+ comment text DEFAULT NULL
+) RETURNS int8 AS
+$$
+DECLARE
+ backup_id int8;
+ backup_relkind "char";
+ set_attnum int2;
+ unit_type char;
+BEGIN
+ IF $1 IS NULL AND $2 IS NOT NULL THEN
+ RAISE EXCEPTION 'relation is required';
+ END IF;
+ IF $1 IS NOT NULL THEN
+ SELECT relkind INTO backup_relkind
+ FROM pg_catalog.pg_class WHERE oid = $1;
+ IF NOT FOUND THEN
+ RAISE EXCEPTION 'relation "%" does not exist', $1;
+ END IF;
+ IF NOT dbms_stats.is_target_relkind(backup_relkind) THEN
+ RAISE EXCEPTION 'can not backup statistics of "%" with relkind "%"',
+ $1, backup_relkind
+ USING HINT = 'only tables and indexes are supported';
+ END IF;
+ IF dbms_stats.is_system_catalog($1) THEN
+ RAISE EXCEPTION 'can not backup statistics of system catalog "%"', $1;
+ END IF;
+ IF $2 IS NOT NULL THEN
+ SELECT a.attnum INTO set_attnum FROM pg_catalog.pg_attribute a
+ WHERE a.attrelid = $1 AND a.attname = $2;
+ IF set_attnum IS NULL THEN
+ RAISE EXCEPTION 'column "%" of "%" does not exist', $2, $1;
+ END IF;
+ IF NOT EXISTS(SELECT * FROM dbms_stats.column_stats_effective WHERE starelid = $1 AND staattnum = set_attnum) THEN
+ RAISE EXCEPTION 'statistic for column "%" of "%" does not exist', $2, $1;
+ END IF;
+ unit_type = 'c';
+ ELSE
+ unit_type = 't';
+ END IF;
+ ELSE
+ unit_type = 'd';
+ END IF;
+
+ INSERT INTO dbms_stats.backup_history(time, unit, comment)
+ VALUES (current_timestamp, unit_type, $3)
+ RETURNING dbms_stats.backup(id, $1, set_attnum) INTO backup_id;
+ RETURN backup_id;
+END;
+$$
+LANGUAGE plpgsql;
+
+CREATE FUNCTION dbms_stats.backup_database_stats(
+ comment text
+) RETURNS int8 AS
+$$
+SELECT dbms_stats.backup(NULL, NULL, $1)
+$$
+LANGUAGE sql;
+
+CREATE FUNCTION dbms_stats.backup_schema_stats(
+ schemaname text,
+ comment text
+) RETURNS int8 AS
+$$
+DECLARE
+ backup_id int8;
+BEGIN
+ IF NOT EXISTS(SELECT * FROM pg_namespace WHERE nspname = $1) THEN
+ RAISE EXCEPTION 'schema "%" does not exist', $1;
+ END IF;
+ IF dbms_stats.is_system_schema($1) THEN
+ RAISE EXCEPTION 'can not backup statistics of relation in system schema "%"', $1;
+ END IF;
+
+ INSERT INTO dbms_stats.backup_history(time, unit, comment)
+ VALUES (current_timestamp, 's', comment)
+ RETURNING id INTO backup_id;
+
+ PERFORM dbms_stats.backup(backup_id, cn.oid, NULL)
+ FROM (SELECT c.oid
+ FROM pg_catalog.pg_class c,
+ pg_catalog.pg_namespace n
+ WHERE n.nspname = schemaname
+ AND c.relnamespace = n.oid
+ AND dbms_stats.is_target_relkind(c.relkind)
+ ORDER BY c.oid
+ ) cn;
+
+ RETURN backup_id;
+END;
+$$
+LANGUAGE plpgsql;
+
+CREATE FUNCTION dbms_stats.backup_table_stats(
+ relid regclass,
+ comment text
+) RETURNS int8 AS
+$$
+SELECT dbms_stats.backup($1, NULL, $2)
+$$
+LANGUAGE sql;
+
+CREATE FUNCTION dbms_stats.backup_table_stats(
+ schemaname text,
+ tablename text,
+ comment text
+) RETURNS int8 AS
+$$
+SELECT dbms_stats.backup(dbms_stats.relname($1, $2)::regclass, NULL, $3)
+$$
+LANGUAGE sql;
+
+CREATE FUNCTION dbms_stats.backup_column_stats(
+ relid regclass,
+ attname text,
+ comment text
+) RETURNS int8 AS
+$$
+SELECT dbms_stats.backup($1, $2, $3)
+$$
+LANGUAGE sql;
+
+CREATE FUNCTION dbms_stats.backup_column_stats(
+ schemaname text,
+ tablename text,
+ attname text,
+ comment text
+) RETURNS int8 AS
+$$
+SELECT dbms_stats.backup(dbms_stats.relname($1, $2)::regclass, $3, $4)
+$$
+LANGUAGE sql;
+
+--
+-- RESTORE_STATS: Statistic restore functions
+--
+CREATE FUNCTION dbms_stats.restore(
+ backup_id int8,
+ relid regclass DEFAULT NULL,
+ attname text DEFAULT NULL
+) RETURNS SETOF regclass AS
+$$
+DECLARE
+ restore_id int8;
+ restore_relid regclass;
+ restore_attnum int2;
+ set_attnum int2;
+ restore_attname text;
+ restore_type regtype;
+ cur_type regtype;
+BEGIN
+ IF $1 IS NULL THEN
+ RAISE EXCEPTION 'backup id is required';
+ END IF;
+ IF $2 IS NULL AND $3 IS NOT NULL THEN
+ RAISE EXCEPTION 'relation is required';
+ END IF;
+ IF NOT EXISTS(SELECT * FROM dbms_stats.backup_history WHERE id <= $1) THEN
+ RAISE EXCEPTION 'backup id % does not exist', $1;
+ END IF;
+ IF $2 IS NOT NULL THEN
+ IF NOT EXISTS(SELECT * FROM pg_catalog.pg_class WHERE oid = $2) THEN
+ RAISE EXCEPTION 'relation "%" does not exist', $2;
+ END IF;
+ IF NOT EXISTS(SELECT * FROM dbms_stats.relation_stats_backup b
+ WHERE b.id <= $1 AND b.relid = $2) THEN
+ RAISE EXCEPTION 'relation "%" does not exist in previous backup', $2;
+ END IF;
+ IF $3 IS NOT NULL THEN
+ SELECT a.attnum INTO set_attnum FROM pg_catalog.pg_attribute a
+ WHERE a.attrelid = $2 AND a.attname = $3;
+ IF set_attnum IS NULL THEN
+ RAISE EXCEPTION 'column "%" of "%" does not exist', $3, $2;
+ END IF;
+ IF NOT EXISTS(SELECT * FROM dbms_stats.column_stats_backup WHERE id <= $1 AND starelid = $2 AND staattnum = set_attnum) THEN
+ RAISE EXCEPTION 'column "%" of "%" does not exist in previous backup',$3, $2;
+ END IF;
+ END IF;
+ END IF;
+
+ LOCK dbms_stats._relation_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+ LOCK dbms_stats._column_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+
+ FOR restore_id, restore_relid IN
+ SELECT max(b.id), c.oid
+ FROM pg_class c, dbms_stats.relation_stats_backup b
+ WHERE (c.oid = $2 OR $2 IS NULL)
+ AND c.oid = b.relid
+ AND dbms_stats.is_target_relkind(c.relkind)
+ AND NOT dbms_stats.is_system_catalog(c.oid)
+ AND b.id <= $1
+ GROUP BY c.oid
+ ORDER BY c.oid::regclass::text
+ LOOP
+ UPDATE dbms_stats._relation_stats_locked r
+ SET relid = b.relid,
+ relname = b.relname,
+ relpages = b.relpages,
+ reltuples = b.reltuples,
+ relallvisible = b.relallvisible,
+ curpages = b.curpages,
+ last_analyze = b.last_analyze,
+ last_autoanalyze = b.last_autoanalyze
+ FROM dbms_stats.relation_stats_backup b
+ WHERE r.relid = restore_relid
+ AND b.id = restore_id
+ AND b.relid = restore_relid;
+ IF NOT FOUND THEN
+ INSERT INTO dbms_stats._relation_stats_locked
+ SELECT b.relid,
+ b.relname,
+ b.relpages,
+ b.reltuples,
+ b.relallvisible,
+ b.curpages,
+ b.last_analyze,
+ b.last_autoanalyze
+ FROM dbms_stats.relation_stats_backup b
+ WHERE b.id = restore_id
+ AND b.relid = restore_relid;
+ END IF;
+ RETURN NEXT restore_relid;
+ END LOOP;
+
+ FOR restore_id, restore_relid, restore_attnum, restore_type, cur_type IN
+ SELECT t.id, t.oid, t.attnum, b.statypid, a.atttypid
+ FROM pg_attribute a,
+ dbms_stats.column_stats_backup b,
+ (SELECT max(b.id) AS id, c.oid, a.attnum
+ FROM pg_class c, pg_attribute a, dbms_stats.column_stats_backup b
+ WHERE (c.oid = $2 OR $2 IS NULL)
+ AND c.oid = a.attrelid
+ AND c.oid = b.starelid
+ AND (a.attnum = set_attnum OR set_attnum IS NULL)
+ AND a.attnum = b.staattnum
+ AND NOT a.attisdropped
+ AND dbms_stats.is_target_relkind(c.relkind)
+ AND b.id <= $1
+ GROUP BY c.oid, a.attnum) t
+ WHERE a.attrelid = t.oid
+ AND a.attnum = t.attnum
+ AND b.id = t.id
+ AND b.starelid = t.oid
+ AND b.staattnum = t.attnum
+ LOOP
+ IF restore_type <> cur_type THEN
+ SELECT a.attname INTO restore_attname
+ FROM pg_catalog.pg_attribute a
+ WHERE a.attrelid = restore_relid
+ AND a.attnum = restore_attnum;
+ RAISE WARNING 'skip "%.%" because of type mismatch: "%" in backup and "%" in database',
+ restore_relid, restore_attname, restore_type, cur_type;
+ ELSE
+ DELETE FROM dbms_stats._column_stats_locked
+ WHERE starelid = restore_relid
+ AND staattnum = restore_attnum;
+ INSERT INTO dbms_stats._column_stats_locked
+ SELECT starelid, staattnum, stainherit,
+ stanullfrac, stawidth, stadistinct,
+ stakind1, stakind2, stakind3, stakind4, stakind5,
+ staop1, staop2, staop3, staop4, staop5,
+ stanumbers1, stanumbers2, stanumbers3, stanumbers4, stanumbers5,
+ stavalues1, stavalues2, stavalues3, stavalues4, stavalues5
+ FROM dbms_stats.column_stats_backup
+ WHERE id = restore_id
+ AND starelid = restore_relid
+ AND staattnum = restore_attnum;
+ END IF;
+ END LOOP;
+END;
+$$
+LANGUAGE plpgsql;
+
+CREATE FUNCTION dbms_stats.restore_database_stats(
+ as_of_timestamp timestamp with time zone
+) RETURNS SETOF regclass AS
+$$
+SELECT dbms_stats.restore(m.id, m.relid)
+ FROM (SELECT max(r.id) AS id, r.relid
+ FROM pg_class c, dbms_stats.relation_stats_backup r,
+ dbms_stats.backup_history b
+ WHERE c.oid = r.relid
+ AND r.id = b.id
+ AND b.time <= $1
+ GROUP BY r.relid
+ ORDER BY r.relid
+ ) m;
+$$
+LANGUAGE sql STRICT;
+
+CREATE FUNCTION dbms_stats.restore_schema_stats(
+ schemaname text,
+ as_of_timestamp timestamp with time zone
+) RETURNS SETOF regclass AS
+$$
+BEGIN
+ IF NOT EXISTS(SELECT * FROM pg_namespace WHERE nspname = $1) THEN
+ RAISE EXCEPTION 'schema "%" does not exist', $1;
+ END IF;
+ IF dbms_stats.is_system_schema($1) THEN
+ RAISE EXCEPTION 'can not restore statistics of relation in system schema "%"', $1;
+ END IF;
+
+ RETURN QUERY
+ SELECT dbms_stats.restore(m.id, m.relid)
+ FROM (SELECT max(r.id) AS id, r.relid
+ FROM pg_class c, pg_namespace n,
+ dbms_stats.relation_stats_backup r,
+ dbms_stats.backup_history b
+ WHERE c.oid = r.relid
+ AND c.relnamespace = n.oid
+ AND n.nspname = $1
+ AND r.id = b.id
+ AND b.time <= $2
+ GROUP BY r.relid
+ ORDER BY r.relid
+ ) m;
+END;
+$$
+LANGUAGE plpgsql STRICT;
+
+CREATE FUNCTION dbms_stats.restore_table_stats(
+ relid regclass,
+ as_of_timestamp timestamp with time zone
+) RETURNS SETOF regclass AS
+$$
+SELECT dbms_stats.restore(max(id), $1, NULL)
+ FROM dbms_stats.backup_history WHERE time <= $2
+$$
+LANGUAGE sql STRICT;
+
+CREATE FUNCTION dbms_stats.restore_table_stats(
+ schemaname text,
+ tablename text,
+ as_of_timestamp timestamp with time zone
+) RETURNS SETOF regclass AS
+$$
+SELECT dbms_stats.restore_table_stats(dbms_stats.relname($1, $2)::regclass, $3)
+$$
+LANGUAGE sql STRICT;
+
+CREATE FUNCTION dbms_stats.restore_column_stats(
+ relid regclass,
+ attname text,
+ as_of_timestamp timestamp with time zone
+) RETURNS SETOF regclass AS
+$$
+SELECT dbms_stats.restore(max(id), $1, $2)
+ FROM dbms_stats.backup_history WHERE time <= $3
+$$
+LANGUAGE sql STRICT;
+
+CREATE FUNCTION dbms_stats.restore_column_stats(
+ schemaname text,
+ tablename text,
+ attname text,
+ as_of_timestamp timestamp with time zone
+) RETURNS SETOF regclass AS
+$$
+SELECT dbms_stats.restore(max(id), dbms_stats.relname($1, $2)::regclass, $3)
+ FROM dbms_stats.backup_history WHERE time <= $4
+$$
+LANGUAGE sql STRICT;
+
+CREATE FUNCTION dbms_stats.restore_stats(
+ backup_id int8
+) RETURNS SETOF regclass AS
+$$
+DECLARE
+ restore_relid regclass;
+ restore_attnum int2;
+ restore_attname text;
+ restore_type regtype;
+ cur_type regtype;
+BEGIN
+ IF NOT EXISTS(SELECT * FROM dbms_stats.backup_history WHERE id = $1) THEN
+ RAISE EXCEPTION 'backup id % does not exist', $1;
+ END IF;
+
+ LOCK dbms_stats._relation_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+ LOCK dbms_stats._column_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+
+ FOR restore_relid IN
+ SELECT b.relid
+ FROM pg_class c
+ JOIN dbms_stats.relation_stats_backup b ON (c.oid = b.relid)
+ WHERE b.id = $1
+ ORDER BY c.oid::regclass::text
+ LOOP
+ UPDATE dbms_stats._relation_stats_locked r
+ SET relid = b.relid,
+ relname = b.relname,
+ relpages = b.relpages,
+ reltuples = b.reltuples,
+ relallvisible = b.relallvisible,
+ curpages = b.curpages,
+ last_analyze = b.last_analyze,
+ last_autoanalyze = b.last_autoanalyze
+ FROM dbms_stats.relation_stats_backup b
+ WHERE r.relid = restore_relid
+ AND b.id = $1
+ AND b.relid = restore_relid;
+ IF NOT FOUND THEN
+ INSERT INTO dbms_stats._relation_stats_locked
+ SELECT b.relid,
+ b.relname,
+ b.relpages,
+ b.reltuples,
+ b.relallvisible,
+ b.curpages,
+ b.last_analyze,
+ b.last_autoanalyze
+ FROM dbms_stats.relation_stats_backup b
+ WHERE b.id = $1
+ AND b.relid = restore_relid;
+ END IF;
+ RETURN NEXT restore_relid;
+ END LOOP;
+
+ FOR restore_relid, restore_attnum, restore_type, cur_type IN
+ SELECT c.oid, a.attnum, b.statypid, a.atttypid
+ FROM pg_class c
+ JOIN dbms_stats.column_stats_backup b ON (c.oid = b.starelid)
+ JOIN pg_attribute a ON (b.starelid = attrelid
+ AND b.staattnum = a.attnum)
+ WHERE b.id = $1
+ LOOP
+ IF restore_type <> cur_type THEN
+ SELECT attname INTO restore_attname
+ FROM pg_catalog.pg_attribute
+ WHERE attrelid = restore_relid
+ AND attnum = restore_attnum;
+ RAISE WARNING 'skip "%.%" because of type mismatch: "%" in backup and "%" in database',
+ restore_relid, restore_attname, restore_type, cur_type;
+ ELSE
+ DELETE FROM dbms_stats._column_stats_locked
+ WHERE starelid = restore_relid
+ AND staattnum = restore_attnum;
+ INSERT INTO dbms_stats._column_stats_locked
+ SELECT starelid, staattnum, stainherit,
+ stanullfrac, stawidth, stadistinct,
+ stakind1, stakind2, stakind3, stakind4, stakind5,
+ staop1, staop2, staop3, staop4, staop5,
+ stanumbers1, stanumbers2, stanumbers3, stanumbers4, stanumbers5,
+ stavalues1, stavalues2, stavalues3, stavalues4, stavalues5
+ FROM dbms_stats.column_stats_backup
+ WHERE id = $1
+ AND starelid = restore_relid
+ AND staattnum = restore_attnum;
+ END IF;
+ END LOOP;
+
+END;
+$$
+LANGUAGE plpgsql STRICT;
+
+--
+-- LOCK_STATS: Statistic lock functions
+--
+
+CREATE FUNCTION dbms_stats.lock(
+ relid regclass,
+ attname text
+) RETURNS regclass AS
+$$
+DECLARE
+ lock_relkind "char";
+ set_attnum int2;
+ r record;
+BEGIN
+ IF $1 IS NULL THEN
+ RAISE EXCEPTION 'relation is required';
+ END IF;
+ IF $2 IS NULL THEN
+ RETURN dbms_stats.lock($1);
+ END IF;
+ SELECT relkind INTO lock_relkind FROM pg_catalog.pg_class WHERE oid = $1;
+ IF NOT FOUND THEN
+ RAISE EXCEPTION 'relation "%" does not exist', $1;
+ END IF;
+ IF NOT dbms_stats.is_target_relkind(lock_relkind) THEN
+ RAISE EXCEPTION '"%" is not a table nor an index', $1;
+ END IF;
+ IF EXISTS(SELECT * FROM pg_catalog.pg_index WHERE lock_relkind = 'i' AND indexrelid = $1 AND indexprs IS NULL) THEN
+ RAISE EXCEPTION '"%" is not an indexes on expressions', $1;
+ END IF;
+ IF dbms_stats.is_system_catalog($1) THEN
+ RAISE EXCEPTION 'can not lock statistics of system catalog "%"', $1;
+ END IF;
+ SELECT a.attnum INTO set_attnum FROM pg_catalog.pg_attribute a
+ WHERE a.attrelid = $1 AND a.attname = $2;
+ IF set_attnum IS NULL THEN
+ RAISE EXCEPTION 'column "%" of "%" does not exist', $2, $1;
+ END IF;
+
+ LOCK dbms_stats._relation_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+ LOCK dbms_stats._column_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+
+ /*
+ * If we don't have per-table statistics, create new one which has NULL for
+ * every statistic column_stats_effective.
+ */
+ IF NOT EXISTS(SELECT * FROM dbms_stats._relation_stats_locked ru
+ WHERE ru.relid = $1) THEN
+ INSERT INTO dbms_stats._relation_stats_locked
+ SELECT $1, dbms_stats.relname(nspname, relname),
+ NULL, NULL, NULL, NULL, NULL
+ FROM pg_catalog.pg_class c, pg_catalog.pg_namespace n
+ WHERE c.relnamespace = n.oid
+ AND c.oid = $1;
+ END IF;
+
+ /*
+ * Process for per-column statistics
+ */
+ FOR r IN
+ SELECT stainherit, stanullfrac, stawidth, stadistinct,
+ stakind1, stakind2, stakind3, stakind4, stakind5,
+ staop1, staop2, staop3, staop4, staop5,
+ stanumbers1, stanumbers2, stanumbers3, stanumbers4, stanumbers5,
+ stavalues1, stavalues2, stavalues3, stavalues4, stavalues5
+ FROM dbms_stats.column_stats_effective
+ WHERE starelid = $1
+ AND staattnum = set_attnum
+ LOOP
+ UPDATE dbms_stats._column_stats_locked c
+ SET stanullfrac = r.stanullfrac,
+ stawidth = r.stawidth,
+ stadistinct = r.stadistinct,
+ stakind1 = r.stakind1,
+ stakind2 = r.stakind2,
+ stakind3 = r.stakind3,
+ stakind4 = r.stakind4,
+ stakind5 = r.stakind5,
+ staop1 = r.staop1,
+ staop2 = r.staop2,
+ staop3 = r.staop3,
+ staop4 = r.staop4,
+ staop5 = r.staop5,
+ stanumbers1 = r.stanumbers1,
+ stanumbers2 = r.stanumbers2,
+ stanumbers3 = r.stanumbers3,
+ stanumbers4 = r.stanumbers4,
+ stanumbers5 = r.stanumbers5,
+ stavalues1 = r.stavalues1,
+ stavalues2 = r.stavalues2,
+ stavalues3 = r.stavalues3,
+ stavalues4 = r.stavalues4,
+ stavalues5 = r.stavalues5
+ WHERE c.starelid = $1
+ AND c.staattnum = set_attnum
+ AND c.stainherit = r.stainherit;
+
+ IF NOT FOUND THEN
+ INSERT INTO dbms_stats._column_stats_locked
+ VALUES ($1,
+ set_attnum,
+ r.stainherit,
+ r.stanullfrac,
+ r.stawidth,
+ r.stadistinct,
+ r.stakind1,
+ r.stakind2,
+ r.stakind3,
+ r.stakind4,
+ r.stakind5,
+ r.staop1,
+ r.staop2,
+ r.staop3,
+ r.staop4,
+ r.staop5,
+ r.stanumbers1,
+ r.stanumbers2,
+ r.stanumbers3,
+ r.stanumbers4,
+ r.stanumbers5,
+ r.stavalues1,
+ r.stavalues2,
+ r.stavalues3,
+ r.stavalues4,
+ r.stavalues5);
+ END IF;
+ END LOOP;
+
+ /* If we don't have statistic at all, raise error. */
+ IF NOT FOUND THEN
+ RAISE EXCEPTION 'statistic for column "%" of "%" does not exist', $2, $1::regclass;
+ END IF;
+
+ RETURN $1;
+END;
+$$
+LANGUAGE plpgsql;
+
+CREATE FUNCTION dbms_stats.lock(relid regclass)
+ RETURNS regclass AS
+$$
+DECLARE
+ lock_relkind "char";
+ i record;
+BEGIN
+ IF $1 IS NULL THEN
+ RAISE EXCEPTION 'relation is required';
+ END IF;
+ SELECT relkind INTO lock_relkind FROM pg_catalog.pg_class WHERE oid = $1;
+ IF NOT FOUND THEN
+ RAISE EXCEPTION 'relation "%" does not exist', $1;
+ END IF;
+ IF NOT dbms_stats.is_target_relkind(lock_relkind) THEN
+ RAISE EXCEPTION 'can not lock statistics of "%" with relkind "%"', $1, lock_relkind
+ USING HINT = 'only tables and indexes are supported';
+ END IF;
+ IF dbms_stats.is_system_catalog($1) THEN
+ RAISE EXCEPTION 'can not lock statistics of system catalog "%"', $1;
+ END IF;
+
+ LOCK dbms_stats._relation_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+ LOCK dbms_stats._column_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+
+ UPDATE dbms_stats._relation_stats_locked r
+ SET relname = dbms_stats.relname(nspname, c.relname),
+ relpages = v.relpages,
+ reltuples = v.reltuples,
+ relallvisible = v.relallvisible,
+ curpages = v.curpages,
+ last_analyze = v.last_analyze,
+ last_autoanalyze = v.last_autoanalyze
+ FROM pg_catalog.pg_class c,
+ pg_catalog.pg_namespace n,
+ dbms_stats.relation_stats_effective v
+ WHERE r.relid = $1
+ AND c.oid = $1
+ AND c.relnamespace = n.oid
+ AND v.relid = $1;
+ IF NOT FOUND THEN
+ INSERT INTO dbms_stats._relation_stats_locked
+ SELECT $1, dbms_stats.relname(nspname, c.relname),
+ v.relpages, v.reltuples, v.relallvisible, v.curpages,
+ v.last_analyze, v.last_autoanalyze
+ FROM pg_catalog.pg_class c,
+ pg_catalog.pg_namespace n,
+ dbms_stats.relation_stats_effective v
+ WHERE c.oid = $1
+ AND c.relnamespace = n.oid
+ AND v.relid = $1;
+ END IF;
+
+ IF EXISTS(SELECT *
+ FROM pg_catalog.pg_class c LEFT JOIN pg_catalog.pg_index ind
+ ON c.oid = ind.indexrelid
+ WHERE c.oid = $1
+ AND c.relkind = 'i'
+ AND ind.indexprs IS NULL) THEN
+ RETURN $1;
+ END IF;
+
+ FOR i IN
+ SELECT staattnum, stainherit, stanullfrac,
+ stawidth, stadistinct,
+ stakind1, stakind2, stakind3, stakind4, stakind5,
+ staop1, staop2, staop3, staop4, staop5,
+ stanumbers1, stanumbers2, stanumbers3, stanumbers4, stanumbers5,
+ stavalues1, stavalues2, stavalues3, stavalues4, stavalues5
+ FROM dbms_stats.column_stats_effective
+ WHERE starelid = $1
+ LOOP
+ UPDATE dbms_stats._column_stats_locked c
+ SET stanullfrac = i.stanullfrac,
+ stawidth = i.stawidth,
+ stadistinct = i.stadistinct,
+ stakind1 = i.stakind1,
+ stakind2 = i.stakind2,
+ stakind3 = i.stakind3,
+ stakind4 = i.stakind4,
+ stakind5 = i.stakind5,
+ staop1 = i.staop1,
+ staop2 = i.staop2,
+ staop3 = i.staop3,
+ staop4 = i.staop4,
+ staop5 = i.staop5,
+ stanumbers1 = i.stanumbers1,
+ stanumbers2 = i.stanumbers2,
+ stanumbers3 = i.stanumbers3,
+ stanumbers4 = i.stanumbers4,
+ stanumbers5 = i.stanumbers5,
+ stavalues1 = i.stavalues1,
+ stavalues2 = i.stavalues2,
+ stavalues3 = i.stavalues3,
+ stavalues4 = i.stavalues4,
+ stavalues5 = i.stavalues5
+ WHERE c.starelid = $1
+ AND c.staattnum = i.staattnum
+ AND c.stainherit = i.stainherit;
+
+ IF NOT FOUND THEN
+ INSERT INTO dbms_stats._column_stats_locked
+ VALUES ($1,
+ i.staattnum,
+ i.stainherit,
+ i.stanullfrac,
+ i.stawidth,
+ i.stadistinct,
+ i.stakind1,
+ i.stakind2,
+ i.stakind3,
+ i.stakind4,
+ i.stakind5,
+ i.staop1,
+ i.staop2,
+ i.staop3,
+ i.staop4,
+ i.staop5,
+ i.stanumbers1,
+ i.stanumbers2,
+ i.stanumbers3,
+ i.stanumbers4,
+ i.stanumbers5,
+ i.stavalues1,
+ i.stavalues2,
+ i.stavalues3,
+ i.stavalues4,
+ i.stavalues5);
+ END IF;
+ END LOOP;
+
+ RETURN $1;
+END;
+$$
+LANGUAGE plpgsql;
+
+CREATE FUNCTION dbms_stats.lock_database_stats()
+ RETURNS SETOF regclass AS
+$$
+SELECT dbms_stats.lock(c.oid)
+ FROM (SELECT oid
+ FROM pg_catalog.pg_class
+ WHERE NOT dbms_stats.is_system_catalog(oid)
+ AND dbms_stats.is_target_relkind(relkind)
+ ORDER BY pg_class.oid
+ ) c;
+$$
+LANGUAGE sql;
+
+CREATE FUNCTION dbms_stats.lock_schema_stats(
+ schemaname text
+) RETURNS SETOF regclass AS
+$$
+BEGIN
+ IF NOT EXISTS(SELECT * FROM pg_namespace WHERE nspname = $1) THEN
+ RAISE EXCEPTION 'schema "%" does not exist', $1;
+ END IF;
+ IF dbms_stats.is_system_schema($1) THEN
+ RAISE EXCEPTION 'can not lock statistics of relation in system schema "%"', $1;
+ END IF;
+
+ RETURN QUERY
+ SELECT dbms_stats.lock(cn.oid)
+ FROM (SELECT c.oid
+ FROM pg_class c, pg_namespace n
+ WHERE c.relnamespace = n.oid
+ AND dbms_stats.is_target_relkind(c.relkind)
+ AND n.nspname = $1
+ ORDER BY c.oid
+ ) cn;
+END;
+$$
+LANGUAGE plpgsql STRICT;
+
+CREATE FUNCTION dbms_stats.lock_table_stats(relid regclass)
+ RETURNS regclass AS
+$$
+SELECT dbms_stats.lock($1)
+$$
+LANGUAGE sql STRICT;
+
+CREATE FUNCTION dbms_stats.lock_table_stats(
+ schemaname text,
+ tablename text
+) RETURNS regclass AS
+$$
+SELECT dbms_stats.lock(dbms_stats.relname($1, $2)::regclass)
+$$
+LANGUAGE sql STRICT;
+
+CREATE FUNCTION dbms_stats.lock_column_stats(
+ relid regclass,
+ attname text
+) RETURNS regclass AS
+$$
+SELECT dbms_stats.lock($1, $2)
+$$
+LANGUAGE sql STRICT;
+
+CREATE FUNCTION dbms_stats.lock_column_stats(
+ schemaname text,
+ tablename text,
+ attname text
+) RETURNS regclass AS
+$$
+SELECT dbms_stats.lock(dbms_stats.relname($1, $2)::regclass, $3)
+$$
+LANGUAGE sql STRICT;
+
+--
+-- UNLOCK_STATS: Statistic unlock functions
+--
+
+CREATE FUNCTION dbms_stats.unlock(
+ relid regclass DEFAULT NULL,
+ attname text DEFAULT NULL
+) RETURNS SETOF regclass AS
+$$
+DECLARE
+ set_attnum int2;
+ unlock_id int8;
+BEGIN
+ IF $1 IS NULL AND $2 IS NOT NULL THEN
+ RAISE EXCEPTION 'relation is required';
+ END IF;
+ SELECT a.attnum INTO set_attnum FROM pg_catalog.pg_attribute a
+ WHERE a.attrelid = $1 AND a.attname = $2;
+ IF $2 IS NOT NULL AND set_attnum IS NULL THEN
+ RAISE EXCEPTION 'column "%" of "%" does not exist', $2, $1;
+ END IF;
+
+ LOCK dbms_stats._relation_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+ LOCK dbms_stats._column_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+
+ DELETE FROM dbms_stats._column_stats_locked
+ WHERE (starelid = $1 OR $1 IS NULL)
+ AND (staattnum = set_attnum OR $2 IS NULL);
+
+ IF $1 IS NOT NULL AND $2 IS NOT NULL THEN
+ RETURN QUERY
+ SELECT $1;
+ END IF;
+ FOR unlock_id IN
+ SELECT ru.relid
+ FROM dbms_stats._relation_stats_locked ru
+ WHERE (ru.relid = $1 OR $1 IS NULL) AND ($2 IS NULL)
+ ORDER BY ru.relid
+ LOOP
+ DELETE FROM dbms_stats._relation_stats_locked ru
+ WHERE ru.relid = unlock_id;
+ RETURN NEXT unlock_id;
+ END LOOP;
+END;
+$$
+LANGUAGE plpgsql;
+
+CREATE FUNCTION dbms_stats.unlock_database_stats()
+ RETURNS SETOF regclass AS
+$$
+DECLARE
+ unlock_id int8;
+BEGIN
+ LOCK dbms_stats._relation_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+ LOCK dbms_stats._column_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+
+ FOR unlock_id IN
+ SELECT relid
+ FROM dbms_stats._relation_stats_locked
+ ORDER BY relid
+ LOOP
+ DELETE FROM dbms_stats._relation_stats_locked
+ WHERE relid = unlock_id;
+ RETURN NEXT unlock_id;
+ END LOOP;
+END;
+$$
+LANGUAGE plpgsql STRICT;
+
+CREATE FUNCTION dbms_stats.unlock_schema_stats(
+ schemaname text
+) RETURNS SETOF regclass AS
+$$
+DECLARE
+ unlock_id int8;
+BEGIN
+ IF NOT EXISTS(SELECT * FROM pg_namespace WHERE nspname = $1) THEN
+ RAISE EXCEPTION 'schema "%" does not exist', $1;
+ END IF;
+ IF dbms_stats.is_system_schema($1) THEN
+ RAISE EXCEPTION 'can not unlock statistics of relation in system schema "%"', $1;
+ END IF;
+
+ LOCK dbms_stats._relation_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+ LOCK dbms_stats._column_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+
+ FOR unlock_id IN
+ SELECT relid
+ FROM dbms_stats._relation_stats_locked, pg_class c, pg_namespace n
+ WHERE relid = c.oid
+ AND c.relnamespace = n.oid
+ AND n.nspname = $1
+ ORDER BY relid
+ LOOP
+ DELETE FROM dbms_stats._relation_stats_locked
+ WHERE relid = unlock_id;
+ RETURN NEXT unlock_id;
+ END LOOP;
+END;
+$$
+LANGUAGE plpgsql STRICT;
+
+CREATE FUNCTION dbms_stats.unlock_table_stats(relid regclass)
+ RETURNS SETOF regclass AS
+$$
+
+LOCK dbms_stats._relation_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+LOCK dbms_stats._column_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+
+DELETE FROM dbms_stats._relation_stats_locked
+ WHERE relid = $1
+ RETURNING relid::regclass
+$$
+LANGUAGE sql STRICT;
+
+CREATE FUNCTION dbms_stats.unlock_table_stats(
+ schemaname text,
+ tablename text
+) RETURNS SETOF regclass AS
+$$
+
+LOCK dbms_stats._relation_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+LOCK dbms_stats._column_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+
+DELETE FROM dbms_stats._relation_stats_locked
+ WHERE relid = dbms_stats.relname($1, $2)::regclass
+ RETURNING relid::regclass
+$$
+LANGUAGE sql STRICT;
+
+CREATE FUNCTION dbms_stats.unlock_column_stats(
+ relid regclass,
+ attname text
+) RETURNS SETOF regclass AS
+$$
+DECLARE
+ set_attnum int2;
+BEGIN
+ SELECT a.attnum INTO set_attnum FROM pg_catalog.pg_attribute a
+ WHERE a.attrelid = $1 AND a.attname = $2;
+ IF $2 IS NOT NULL AND set_attnum IS NULL THEN
+ RAISE EXCEPTION 'column "%" of "%" does not exist', $2, $1;
+ END IF;
+
+ LOCK dbms_stats._relation_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+ LOCK dbms_stats._column_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+
+ DELETE FROM dbms_stats._column_stats_locked
+ WHERE starelid = $1
+ AND staattnum = set_attnum;
+ RETURN QUERY
+ SELECT $1;
+END;
+$$
+LANGUAGE plpgsql STRICT;
+
+CREATE FUNCTION dbms_stats.unlock_column_stats(
+ schemaname text,
+ tablename text,
+ attname text
+) RETURNS SETOF regclass AS
+$$
+DECLARE
+ set_attnum int2;
+BEGIN
+ SELECT a.attnum INTO set_attnum FROM pg_catalog.pg_attribute a
+ WHERE a.attrelid = dbms_stats.relname($1, $2)::regclass
+ AND a.attname = $3;
+ IF $3 IS NOT NULL AND set_attnum IS NULL THEN
+ RAISE EXCEPTION 'column "%" of "%.%" does not exist', $3, $1, $2;
+ END IF;
+
+ LOCK dbms_stats._relation_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+ LOCK dbms_stats._column_stats_locked IN SHARE UPDATE EXCLUSIVE MODE;
+
+ DELETE FROM dbms_stats._column_stats_locked
+ WHERE starelid = dbms_stats.relname($1, $2)::regclass
+ AND staattnum = set_attnum;
+ RETURN QUERY
+ SELECT dbms_stats.relname($1, $2)::regclass;
+END;
+$$
+LANGUAGE plpgsql STRICT;
+
+--
+-- IMPORT_STATS: Statistic import functions
+--
+
+CREATE FUNCTION dbms_stats.import(
+ nspname text DEFAULT NULL,
+ relid regclass DEFAULT NULL,
+ attname text DEFAULT NULL,
+ src text DEFAULT NULL
+) RETURNS void AS
+'MODULE_PATHNAME', 'dbms_stats_import'
+LANGUAGE C;
+
+CREATE FUNCTION dbms_stats.import_database_stats(src text)
+ RETURNS void AS
+$$
+SELECT dbms_stats.import(NULL, NULL, NULL, $1)
+$$
+LANGUAGE sql;
+
+CREATE FUNCTION dbms_stats.import_schema_stats(
+ schemaname text,
+ src text
+) RETURNS void AS
+$$
+SELECT dbms_stats.import($1, NULL, NULL, $2)
+$$
+LANGUAGE sql;
+
+CREATE FUNCTION dbms_stats.import_table_stats(
+ relid regclass,
+ src text
+) RETURNS void AS
+$$
+SELECT dbms_stats.import(NULL, $1, NULL, $2)
+$$
+LANGUAGE sql;
+
+CREATE FUNCTION dbms_stats.import_table_stats(
+ schemaname text,
+ tablename text,
+ src text
+) RETURNS void AS
+$$
+SELECT dbms_stats.import(NULL, dbms_stats.relname($1, $2)::regclass, NULL, $3)
+$$
+LANGUAGE sql;
+
+CREATE FUNCTION dbms_stats.import_column_stats(
+ relid regclass,
+ attname text,
+ src text
+) RETURNS void AS
+$$
+SELECT dbms_stats.import(NULL, $1, $2, $3)
+$$
+LANGUAGE sql;
+
+CREATE FUNCTION dbms_stats.import_column_stats(
+ schemaname text,
+ tablename text,
+ attname text,
+ src text
+) RETURNS void AS
+$$
+SELECT dbms_stats.import(NULL, dbms_stats.relname($1, $2)::regclass, $3, $4)
+$$
+LANGUAGE sql;
+
+--
+-- PURGE_STATS: Statistic purge function
+--
+
+CREATE OR REPLACE FUNCTION dbms_stats.purge_stats(
+ backup_id int8,
+ force bool DEFAULT false
+) RETURNS SETOF dbms_stats.backup_history AS
+$$
+DECLARE
+ delete_id int8;
+ deleted dbms_stats.backup_history;
+BEGIN
+ IF $1 IS NULL THEN
+ RAISE EXCEPTION 'backup id is required';
+ END IF;
+ IF $2 IS NULL THEN
+ RAISE EXCEPTION 'force is not null';
+ END IF;
+
+ LOCK dbms_stats.backup_history IN SHARE UPDATE EXCLUSIVE MODE;
+ LOCK dbms_stats.relation_stats_backup IN SHARE UPDATE EXCLUSIVE MODE;
+ LOCK dbms_stats.column_stats_backup IN SHARE UPDATE EXCLUSIVE MODE;
+
+ IF NOT EXISTS(SELECT * FROM dbms_stats.backup_history WHERE id = $1) THEN
+ RAISE EXCEPTION 'backup id % does not exist', $1;
+ END IF;
+ IF NOT $2 AND NOT EXISTS(SELECT *
+ FROM dbms_stats.backup_history
+ WHERE unit = 'd'
+ AND id > $1) THEN
+ RAISE WARNING 'at least one database-wise backup must be remain'
+ USING HINT = 'use true as 2nd parameter, if you want to purge forcibly';
+ RETURN;
+ END IF;
+
+ FOR deleted IN
+ SELECT * FROM dbms_stats.backup_history
+ WHERE id <= $1
+ ORDER BY id
+ LOOP
+ DELETE FROM dbms_stats.backup_history
+ WHERE id = deleted.id;
+ RETURN NEXT deleted;
+ END LOOP;
+END;
+$$
+LANGUAGE plpgsql;
+
+GRANT USAGE ON schema dbms_stats TO PUBLIC;
+--
--- /dev/null
+/*
+ * pg_dbms_stats.c
+ *
+ * Copyright (c) 2009-2012, NIPPON TELEGRAPH AND TELEPHONE CORPORATION
+ * Portions Copyright (c) 1996-2011, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ */
+#include "postgres.h"
+
+#include "access/transam.h"
+#include "catalog/pg_statistic.h"
+#include "catalog/pg_type.h"
+#include "commands/trigger.h"
+#include "executor/spi.h"
+#include "funcapi.h"
+#include "optimizer/plancat.h"
+#include "storage/bufmgr.h"
+#include "utils/builtins.h"
+#include "utils/guc.h"
+#include "utils/inval.h"
+#include "utils/lsyscache.h"
+#include "utils/selfuncs.h"
+#include "utils/syscache.h"
+#if PG_VERSION_NUM >= 90200
+#include "utils/rel.h"
+#endif
+
+#include "pg_dbms_stats.h"
+
+PG_MODULE_MAGIC;
+
+/* Error levels used by pg_dbms_stats */
+#define ELEVEL_DEBUG DEBUG3 /* log level for debug information */
+#define ELEVEL_BADSTATS LOG /* log level for invalid statistics */
+
+#define MAX_REL_CACHE 50 /* expected max # of rel stats entries */
+
+/* represents an element of relation statistics which is cached in hash table */
+typedef struct StatsRelationEntry
+{
+ Oid relid; /* hash key must be at the head */
+
+ bool valid; /* T if the entry has valid stats */
+
+ BlockNumber relpages; /* # of pages as of last ANALYZE */
+ double reltuples; /* # of tuples as of last ANALYZE */
+ BlockNumber relallvisible; /* # of all-visible pages as of last
+ * ANALYZE */
+ BlockNumber curpages; /* # of pages as of lock/restore */
+
+ List *col_stats; /* list of HeapTuple, each element is
+ pg_statistic record of this relation. */
+} StatsRelationEntry;
+
+/* Saved hook functions */
+get_relation_info_hook_type prev_get_relation_info = NULL;
+get_attavgwidth_hook_type prev_get_attavgwidth = NULL;
+get_relation_stats_hook_type prev_get_relation_stats = NULL;
+get_index_stats_hook_type prev_get_index_stats = NULL;
+
+/* rows_query(oid) RETURNS int4, float4, int4 */
+static const char *rows_query =
+ "SELECT relpages, reltuples, curpages"
+#if PG_VERSION_NUM >= 90200
+ ", relallvisible"
+#endif
+ " FROM dbms_stats.relation_stats_locked"
+ " WHERE relid = $1";
+static SPIPlanPtr rows_plan = NULL;
+
+/* tuple_query(oid, int2, bool) RETURNS pg_statistic */
+static const char *tuple_query =
+ "SELECT * "
+ " FROM dbms_stats.column_stats_locked "
+ " WHERE starelid = $1 "
+ " AND staattnum = $2 "
+ " AND stainherit = $3";
+static SPIPlanPtr tuple_plan = NULL;
+
+/* GUC variables */
+static bool pg_dbms_stats_use_locked_stats = true;
+
+/* Current nesting depth of SPI calls, used to prevent recursive calls */
+static int nested_level = 0;
+
+/*
+ * The relation_stats_effective statistic cache is stored in hash table.
+ */
+static HTAB *rel_stats;
+
+#define get_pg_statistic(tuple) ((Form_pg_statistic) GETSTRUCT(tuple))
+
+PG_FUNCTION_INFO_V1(dbms_stats_merge);
+PG_FUNCTION_INFO_V1(dbms_stats_invalidate_relation_cache);
+PG_FUNCTION_INFO_V1(dbms_stats_invalidate_column_cache);
+PG_FUNCTION_INFO_V1(dbms_stats_is_system_schema);
+PG_FUNCTION_INFO_V1(dbms_stats_is_system_catalog);
+
+extern Datum dbms_stats_merge(PG_FUNCTION_ARGS);
+extern Datum dbms_stats_invalidate_relation_cache(PG_FUNCTION_ARGS);
+extern Datum dbms_stats_invalidate_column_cache(PG_FUNCTION_ARGS);
+extern Datum dbms_stats_is_system_schema(PG_FUNCTION_ARGS);
+extern Datum dbms_stats_is_system_catalog(PG_FUNCTION_ARGS);
+
+static HeapTuple dbms_stats_merge_internal(HeapTuple lhs, HeapTuple rhs,
+ TupleDesc tupledesc);
+static void dbms_stats_check_tg_event(FunctionCallInfo fcinfo,
+ TriggerData *trigdata, HeapTuple *invtup, HeapTuple *rettup);
+static void dbms_stats_invalidate_cache_internal(Oid relid, bool sta_col);
+
+/* Module callbacks */
+void _PG_init(void);
+void _PG_fini(void);
+
+static void dbms_stats_get_relation_info(PlannerInfo *root, Oid relid,
+ bool inhparent, RelOptInfo *rel);
+static int32 dbms_stats_get_attavgwidth(Oid relid, AttrNumber attnum);
+static bool dbms_stats_get_relation_stats(PlannerInfo *root, RangeTblEntry *rte,
+ AttrNumber attnum, VariableStatData *vardata);
+static bool dbms_stats_get_index_stats(PlannerInfo *root, Oid indexOid,
+ AttrNumber indexattnum, VariableStatData *vardata);
+
+static void get_merged_relation_stats(Oid relid, BlockNumber *pages,
+ double *tuples, double *allvisfrac, bool estimate);
+static int32 get_merged_avgwidth(Oid relid, AttrNumber attnum);
+static HeapTuple get_merged_column_stats(Oid relid, AttrNumber attnum,
+ bool inh);
+static HeapTuple column_cache_search(Oid relid, AttrNumber attnum, bool inh);
+static HeapTuple column_cache_enter(HeapTuple tuple);
+static bool execute_plan(SPIPlanPtr *plan, const char *query, Oid relid,
+ const AttrNumber *attnum, bool inh);
+static void StatsCacheRelCallback(Datum arg, Oid relid);
+static void init_rel_stats(void);
+static void init_rel_stats_entry(StatsRelationEntry *entry, Oid relid);
+/* copied from PG core source tree */
+static void dbms_stats_estimate_rel_size(Relation rel, int32 *attr_widths,
+ BlockNumber *pages, double *tuples, double *allvisfrac,
+ BlockNumber curpages);
+static int32 dbms_stats_get_rel_data_width(Relation rel, int32 *attr_widths);
+
+/* Unit test suit functions */
+#ifdef UNIT_TEST
+extern void test_import(int *passed, int *total);
+extern void test_dump(int *passed, int *total);
+extern void test_pg_dbms_stats(int *passed, int *total);
+#endif
+
+/*
+ * Module load callback
+ */
+void
+_PG_init(void)
+{
+ /* Execute unit test cases */
+#ifdef UNIT_TEST
+ {
+ int passed = 0;
+ int total = 0;
+
+ test_import(&passed, &total);
+ test_dump(&passed, &total);
+ test_pg_dbms_stats(&passed, &total);
+
+ elog(WARNING, "TOTAL %d/%d passed", passed, total);
+ }
+#endif
+
+ /* Define custom GUC variables. */
+ DefineCustomBoolVariable("pg_dbms_stats.use_locked_stats",
+ "Enable user defined statistics.",
+ NULL,
+ &pg_dbms_stats_use_locked_stats,
+ true,
+ PGC_USERSET,
+ 0,
+ NULL,
+ NULL,
+ NULL);
+
+ EmitWarningsOnPlaceholders("pg_dbms_stats");
+
+ /* Back up old hooks, and install ours. */
+ prev_get_relation_info = get_relation_info_hook;
+ get_relation_info_hook = dbms_stats_get_relation_info;
+ prev_get_attavgwidth = get_attavgwidth_hook;
+ get_attavgwidth_hook = dbms_stats_get_attavgwidth;
+ prev_get_relation_stats = get_relation_stats_hook;
+ get_relation_stats_hook = dbms_stats_get_relation_stats;
+ prev_get_index_stats = get_index_stats_hook;
+ get_index_stats_hook = dbms_stats_get_index_stats;
+
+ /* Initialize hash table for statistics caching. */
+ init_rel_stats();
+
+ /* Also set up a callback for relcache SI invalidations */
+ CacheRegisterRelcacheCallback(StatsCacheRelCallback, (Datum) 0);
+}
+
+/*
+ * Module unload callback
+ */
+void
+_PG_fini(void)
+{
+ /* Restore old hooks. */
+ get_relation_info_hook = prev_get_relation_info;
+ get_attavgwidth_hook = prev_get_attavgwidth;
+ get_relation_stats_hook = prev_get_relation_stats;
+ get_index_stats_hook = prev_get_index_stats;
+
+ /* A function to unregister callback for relcache is NOT provided. */
+}
+
+/*
+ * Store heap tuple header into given heap tuple.
+ */
+static void
+AssignHeapTuple(HeapTuple htup, HeapTupleHeader header)
+{
+ htup->t_len = HeapTupleHeaderGetDatumLength(header);
+ ItemPointerSetInvalid(&htup->t_self);
+ htup->t_tableOid = InvalidOid;
+ htup->t_data = header;
+}
+
+/*
+ * dbms_stats_merge
+ * called by sql function 'dbms_stats.merge', and return the execution result
+ * of the function 'dbms_stats_merge_internal'.
+ */
+Datum
+dbms_stats_merge(PG_FUNCTION_ARGS)
+{
+ HeapTupleData lhs;
+ HeapTupleData rhs;
+ TupleDesc tupdesc;
+ HeapTuple ret = NULL;
+
+ /* assign HeapTuple of the left statistics data unless null. */
+ if (PG_ARGISNULL(0))
+ lhs.t_data = NULL;
+ else
+ AssignHeapTuple(&lhs, PG_GETARG_HEAPTUPLEHEADER(0));
+
+ /* assign HeapTuple of the right statistics data unless null. */
+ if (PG_ARGISNULL(1))
+ rhs.t_data = NULL;
+ else
+ AssignHeapTuple(&rhs, PG_GETARG_HEAPTUPLEHEADER(1));
+
+ /* fast path for one-side is null */
+ if (lhs.t_data == NULL && rhs.t_data == NULL)
+ PG_RETURN_NULL();
+
+ /* build a tuple descriptor for our result type */
+ if (get_call_result_type(fcinfo, NULL, &tupdesc) != TYPEFUNC_COMPOSITE)
+ elog(ERROR, "return type must be a row type");
+
+ /* merge two statistics tuples into one, and return it */
+ ret = dbms_stats_merge_internal(&lhs, &rhs, tupdesc);
+
+ if (ret)
+ PG_RETURN_DATUM(HeapTupleGetDatum(ret));
+ else
+ PG_RETURN_NULL();
+}
+
+/*
+ * dbms_stats_merge_internal
+ * merge the dummy statistic (lhs) and the true statistic (rhs), on the basis
+ * of given TupleDesc.
+ */
+static HeapTuple
+dbms_stats_merge_internal(HeapTuple lhs, HeapTuple rhs, TupleDesc tupdesc)
+{
+ Datum values[Natts_pg_statistic];
+ bool nulls[Natts_pg_statistic];
+ int i;
+ Oid atttype = InvalidOid;
+
+ /* fast path for both-sides are null */
+ if ((lhs == NULL || lhs->t_data == NULL) &&
+ (rhs == NULL || rhs->t_data == NULL))
+ return NULL;
+
+ /* fast path for one-side is null */
+ if (lhs == NULL || lhs->t_data == NULL)
+ {
+ /* use right tuple */
+ heap_deform_tuple(rhs, tupdesc, values, nulls);
+ for (i = 0; i < Anum_pg_statistic_staop1 + STATISTIC_NUM_SLOTS - 1; i++)
+ if (nulls[i])
+ return NULL; /* check null constraints */
+ }
+ else if (rhs == NULL || rhs->t_data == NULL)
+ {
+ /* use left tuple */
+ heap_deform_tuple(lhs, tupdesc, values, nulls);
+ for (i = 0; i < Anum_pg_statistic_staop1 + STATISTIC_NUM_SLOTS - 1; i++)
+ if (nulls[i])
+ return NULL; /* check null constraints */
+ }
+ else
+ {
+ /*
+ * If the column value of the dummy statistic is not NULL, in the
+ * statistics except the slot, use it. Otherwise we use the column
+ * value of the true statistic.
+ */
+ heap_deform_tuple(lhs, tupdesc, values, nulls);
+ for (i = 0; i < Anum_pg_statistic_stakind1 - 1; i++)
+ {
+ if (nulls[i])
+ {
+ values[i] = fastgetattr(rhs, i + 1, tupdesc, &nulls[i]);
+ if (nulls[i])
+ {
+ ereport(ELEVEL_BADSTATS,
+ (errmsg("pg_dbms_stats: bad statistics"),
+ errdetail("column \"%s\" should not be null",
+ get_attname(StatisticRelationId,
+ tupdesc->attrs[i]->attnum))));
+ return NULL; /* should not be null */
+ }
+ }
+ }
+
+ /*
+ * If the column value of the dummy statistic is not all NULL, in the
+ * statistics the slot, use it. Otherwise we use the column
+ * value of the true statistic.
+ */
+ for (; i < Anum_pg_statistic_staop1 + STATISTIC_NUM_SLOTS - 1; i++)
+ {
+ if (nulls[i])
+ {
+ for (i = Anum_pg_statistic_stakind1 - 1;
+ i < Anum_pg_statistic_stavalues1 + STATISTIC_NUM_SLOTS - 1;
+ i++)
+ {
+ values[i] = fastgetattr(rhs, i + 1, tupdesc, &nulls[i]);
+ if (i < Anum_pg_statistic_staop1 + STATISTIC_NUM_SLOTS - 1 &&
+ nulls[i])
+ {
+ ereport(ELEVEL_BADSTATS,
+ (errmsg("pg_dbms_stats: bad statistics"),
+ errdetail("column \"%s\" should not be null",
+ get_attname(StatisticRelationId,
+ tupdesc->attrs[i]->attnum))));
+ return NULL; /* should not be null */
+ }
+ }
+
+ break;
+ }
+ }
+ }
+
+ /* verify types to work around for ALTER COLUMN TYPE */
+ for (i = 0; i < STATISTIC_NUM_SLOTS; i++)
+ {
+ if ((i + 1 == STATISTIC_KIND_MCV ||
+ i + 1 == STATISTIC_KIND_HISTOGRAM) &&
+ !nulls[Anum_pg_statistic_stavalues1 + i - 1])
+ {
+ Oid relid = DatumGetObjectId(values[0]);
+ AttrNumber attnum = DatumGetInt16(values[1]);
+ ArrayType *arr;
+
+ if (atttype == InvalidOid)
+ atttype = get_atttype(relid, attnum);
+
+ arr = DatumGetArrayTypeP(
+ values[Anum_pg_statistic_stavalues1 + i - 1]);
+ if (arr == NULL || arr->elemtype != atttype)
+ {
+ char *attname = get_attname(relid,
+ tupdesc->attrs[attnum - 1]->attnum);
+
+ ereport(ELEVEL_BADSTATS,
+ (errmsg("pg_dbms_stats: bad column type"),
+ errdetail("type of column \"%s\" has been changed",
+ attname),
+ errhint("need to execute dbms_stats.unlock('%s', '%s')",
+ get_rel_name(relid), attname)));
+ return NULL;
+ }
+ }
+ }
+
+ return heap_form_tuple(tupdesc, values, nulls);
+}
+
+/*
+ * dbms_stats_invalidate_relation_cache
+ * Register invalidation of the specified relation's relcache.
+ *
+ * CREATE TRIGGER dbms_stats.relation_stats_locked FOR INSERT, UPDATE, DELETE FOR EACH
+ * ROWS EXECUTE ...
+ */
+Datum
+dbms_stats_invalidate_relation_cache(PG_FUNCTION_ARGS)
+{
+ TriggerData *trigdata = (TriggerData *) fcinfo->context;
+ HeapTuple invtup; /* tuple to be invalidated */
+ HeapTuple rettup; /* tuple to be returned */
+ Datum value;
+ bool isnull;
+
+ /* make sure it's called as a before/after trigger */
+ dbms_stats_check_tg_event(fcinfo, trigdata, &invtup, &rettup);
+
+ /*
+ * assume that position of dbms_stats.relation_stats_locked.relid is head value of
+ * tuple.
+ */
+ value = fastgetattr(invtup, 1, trigdata->tg_relation->rd_att, &isnull);
+
+ /*
+ * invalidate prepared statements and force re-planning with pg_dbms_stats.
+ */
+ dbms_stats_invalidate_cache_internal((Oid)value, false);
+
+ PG_RETURN_POINTER(rettup);
+}
+
+/*
+ * dbms_stats_invalidate_column_cache
+ * Register invalidation of the specified relation's relcache.
+ *
+ * CREATE TRIGGER dbms_stats.column_stats_locked FOR INSERT, UPDATE, DELETE FOR EACH
+ * ROWS EXECUTE ...
+ */
+Datum
+dbms_stats_invalidate_column_cache(PG_FUNCTION_ARGS)
+{
+ TriggerData *trigdata = (TriggerData *) fcinfo->context;
+ Form_pg_statistic form;
+ HeapTuple invtup; /* tuple to be invalidated */
+ HeapTuple rettup; /* tuple to be returned */
+
+ /* make sure it's called as a before/after trigger */
+ dbms_stats_check_tg_event(fcinfo, trigdata, &invtup, &rettup);
+
+ /*
+ * assume that both pg_statistic and dbms_stats.column_stats_locked have the same
+ * definition.
+ */
+ form = get_pg_statistic(invtup);
+
+ /*
+ * invalidate prepared statements and force re-planning with pg_dbms_stats.
+ */
+ dbms_stats_invalidate_cache_internal(form->starelid, true);
+
+ PG_RETURN_POINTER(rettup);
+}
+
+static void
+dbms_stats_check_tg_event(FunctionCallInfo fcinfo,
+ TriggerData *trigdata,
+ HeapTuple *invtup,
+ HeapTuple *rettup)
+{
+ /* make sure it's called as a before/after trigger */
+ if (!CALLED_AS_TRIGGER(fcinfo) ||
+ !TRIGGER_FIRED_BEFORE(trigdata->tg_event) ||
+ !TRIGGER_FIRED_FOR_ROW(trigdata->tg_event))
+ elog(ERROR, "pg_dbms_stats: invalid trigger call");
+
+ if (TRIGGER_FIRED_BY_INSERT(trigdata->tg_event))
+ {
+ /* INSERT */
+ *rettup = *invtup = trigdata->tg_trigtuple;
+ }
+ else if (TRIGGER_FIRED_BY_DELETE(trigdata->tg_event))
+ {
+ /* DELETE */
+ *rettup = *invtup = trigdata->tg_trigtuple;
+ }
+ else
+ {
+ /* UPDATE */
+ *invtup = trigdata->tg_trigtuple;
+ *rettup = trigdata->tg_newtuple;
+ }
+}
+
+static void
+dbms_stats_invalidate_cache_internal(Oid relid, bool sta_col)
+{
+ Relation rel;
+
+ /*
+ * invalidate prepared statements and force re-planning with pg_dbms_stats.
+ */
+ rel = try_relation_open(relid, NoLock);
+ if (rel != NULL)
+ {
+ if (sta_col &&
+ rel->rd_rel->relkind == RELKIND_INDEX &&
+ (rel->rd_indextuple == NULL ||
+ heap_attisnull(rel->rd_indextuple, Anum_pg_index_indexprs)))
+ ereport(ERROR,
+ (errcode(ERRCODE_WRONG_OBJECT_TYPE),
+ errmsg("\"%s\" is an index except an index expression",
+ RelationGetRelationName(rel))));
+ if (rel->rd_rel->relkind == RELKIND_COMPOSITE_TYPE)
+ ereport(ERROR,
+ (errcode(ERRCODE_WRONG_OBJECT_TYPE),
+ errmsg("\"%s\" is a composite type",
+ RelationGetRelationName(rel))));
+
+ /*
+ * We need to invalidate relcache of underlying table too, because
+ * CachedPlan mechanism decides to do re-planning when any relcache of
+ * used tables was invalid at EXECUTE.
+ */
+ if (rel->rd_rel->relkind == RELKIND_INDEX &&
+ rel->rd_index && OidIsValid(rel->rd_index->indrelid))
+ CacheInvalidateRelcacheByRelid(rel->rd_index->indrelid);
+
+ CacheInvalidateRelcache(rel);
+ relation_close(rel, NoLock);
+ }
+}
+
+/*
+ * dbms_stats_is_system_schema
+ * called by sql function 'dbms_stats.is_system_schema', and return the
+ * result of the function 'dbms_stats_is_system_internal'.
+ */
+Datum
+dbms_stats_is_system_schema(PG_FUNCTION_ARGS)
+{
+ text *arg0;
+ char *schema_name;
+ bool result;
+
+ arg0 = PG_GETARG_TEXT_PP(0);
+ schema_name = text_to_cstring(arg0);
+ result = dbms_stats_is_system_schema_internal(schema_name);
+
+ PG_FREE_IF_COPY(arg0, 0);
+
+ PG_RETURN_BOOL(result);
+}
+
+/*
+ * dbms_stats_is_system_schema_internal
+ * return whether the given schema contains any system catalog. Here we
+ * treat dbms_stats objects as system catalogs to avoid infinite loop.
+ */
+bool
+dbms_stats_is_system_schema_internal(char *schema_name)
+{
+ Assert(schema_name != NULL);
+
+ /* if the schema is system_schema, return true */
+ if (strcmp(schema_name, "pg_catalog") == 0 ||
+ strcmp(schema_name, "pg_toast") == 0 ||
+ strcmp(schema_name, "information_schema") == 0 ||
+ strcmp(schema_name, "dbms_stats") == 0)
+ return true;
+
+ return false;
+}
+
+/*
+ * dbms_stats_is_system_catalog
+ * called by sql function 'dbms_stats.is_system_catalog', and return the
+ * result of the function 'dbms_stats_is_system_catalog_internal'.
+ */
+Datum
+dbms_stats_is_system_catalog(PG_FUNCTION_ARGS)
+{
+ Oid relid;
+ bool result;
+
+ if (PG_ARGISNULL(0))
+ PG_RETURN_BOOL(true);
+
+ relid = PG_GETARG_OID(0);
+ result = dbms_stats_is_system_catalog_internal(relid);
+
+ PG_RETURN_BOOL(result);
+}
+
+/*
+ * dbms_stats_is_system_catalog_internal
+ * Check whether the given relation is one of system catalogs.
+ */
+bool
+dbms_stats_is_system_catalog_internal(Oid relid)
+{
+ Relation rel;
+ char *schema_name;
+ bool result;
+
+ /* relid is InvalidOid */
+ if (!OidIsValid(relid))
+ return false;
+
+ /* no such relation */
+ rel = try_relation_open(relid, NoLock);
+ if (rel == NULL)
+ return false;
+
+ /* check by namespace name. */
+ schema_name = get_namespace_name(rel->rd_rel->relnamespace);
+ result = dbms_stats_is_system_schema_internal(schema_name);
+ relation_close(rel, NoLock);
+
+ return result;
+}
+
+/*
+ * dbms_stats_get_relation_info
+ * Hook function for get_relation_info_hook, which implements post-process of
+ * get_relation_info().
+ *
+ * This function is designed on the basis of the fact that only expression
+ * indexes have statistics.
+ */
+static void
+dbms_stats_get_relation_info(PlannerInfo *root,
+ Oid relid,
+ bool inhparent,
+ RelOptInfo *rel)
+{
+ ListCell *lc;
+ double allvisfrac; /* dummy */
+
+ /*
+ * Call previously installed hook function regardless to whether
+ * pg_dbms_stats is enabled or not.
+ */
+ if (prev_get_relation_info)
+ prev_get_relation_info(root, relid, inhparent, rel);
+
+ /* If pg_dbms_stats is disabled, there is no more thing to do. */
+ if (!pg_dbms_stats_use_locked_stats)
+ return;
+
+ /*
+ * Adjust stats of table itself, and stats of index
+ * relation_stats_effective as well
+ */
+
+ /*
+ * Estimate relation size --- unless it's an inheritance parent, in which
+ * case the size will be computed later in set_append_rel_pathlist, and we
+ * must leave it zero for now to avoid bollixing the total_table_pages
+ * calculation.
+ */
+ if (!inhparent)
+ {
+#if PG_VERSION_NUM >= 90200
+ get_merged_relation_stats(relid, &rel->pages, &rel->tuples,
+ &rel->allvisfrac, true);
+#else
+ get_merged_relation_stats(relid, &rel->pages, &rel->tuples,
+ &allvisfrac, true);
+#endif
+ }
+ else
+ return;
+
+ foreach(lc, rel->indexlist)
+ {
+ /*
+ * Estimate the index size. If it's not a partial index, we lock
+ * the number-of-tuples estimate to equal the parent table; if it
+ * is partial then we have to use the same methods as we would for
+ * a table, except we can be sure that the index is not larger
+ * than the table.
+ */
+ IndexOptInfo *info = (IndexOptInfo *) lfirst(lc);
+ bool estimate = info->indpred != NIL;
+
+ get_merged_relation_stats(info->indexoid, &info->pages, &info->tuples,
+ &allvisfrac, estimate);
+
+ if (!estimate || (estimate && info->tuples > rel->tuples))
+ info->tuples = rel->tuples;
+ }
+}
+
+/*
+ * dbms_stats_get_attavgwidth
+ * Hook function for get_attavgwidth_hook which replaces get_attavgwidth().
+ * Returning 0 tells caller to use standard routine.
+ */
+static int32
+dbms_stats_get_attavgwidth(Oid relid, AttrNumber attnum)
+{
+ if (pg_dbms_stats_use_locked_stats)
+ {
+ int32 width = get_merged_avgwidth(relid, attnum);
+ if (width > 0)
+ return width;
+ }
+
+ if (prev_get_attavgwidth)
+ return prev_get_attavgwidth(relid, attnum);
+ else
+ return 0;
+}
+
+/*
+ * We do nothing here, to keep the tuple valid even after examination.
+ */
+static void
+FreeHeapTuple(HeapTuple tuple)
+{
+ /* noop */
+}
+
+/*
+ * dbms_stats_get_relation_stats
+ * Hook function for get_relation_stats_hook which provides custom
+ * per-relation statistics.
+ * Returning false tells caller to use standard (true) statistics.
+ */
+static bool
+dbms_stats_get_relation_stats(PlannerInfo *root,
+ RangeTblEntry *rte,
+ AttrNumber attnum,
+ VariableStatData *vardata)
+{
+ if (pg_dbms_stats_use_locked_stats)
+ {
+ HeapTuple tuple;
+
+ tuple = get_merged_column_stats(rte->relid, attnum, rte->inh);
+ if (tuple != NULL)
+ {
+ vardata->statsTuple = tuple;
+ vardata->freefunc = FreeHeapTuple;
+ return true;
+ }
+ }
+
+ if (prev_get_relation_stats)
+ return prev_get_relation_stats(root, rte, attnum, vardata);
+ else
+ return false;
+}
+
+/*
+ * dbms_stats_get_index_stats
+ * Hook function for get_index_stats_hook which provides custom per-relation
+ * statistics.
+ * Returning false tells caller to use standard (true) statistics.
+ */
+static bool
+dbms_stats_get_index_stats(PlannerInfo *root,
+ Oid indexOid,
+ AttrNumber indexattnum,
+ VariableStatData *vardata)
+{
+ if (pg_dbms_stats_use_locked_stats)
+ {
+ HeapTuple tuple;
+
+ tuple = get_merged_column_stats(indexOid, indexattnum, false);
+ if (tuple != NULL)
+ {
+ vardata->statsTuple = tuple;
+ vardata->freefunc = FreeHeapTuple;
+ return true;
+ }
+ }
+
+ if (prev_get_index_stats)
+ return prev_get_index_stats(root, indexOid, indexattnum, vardata);
+ else
+ return false;
+}
+
+/*
+ * Extract binary value from given column.
+ */
+static Datum
+get_binary_datum(int column, bool *isnull)
+{
+ return SPI_getbinval(SPI_tuptable->vals[0],
+ SPI_tuptable->tupdesc, column, isnull);
+}
+
+/*
+ * get_merged_relation_stats
+ * get the statistics of the table, # of pages and # of rows, by executing
+ * SELECT against dbms_stats.relation_stats_locked view.
+ */
+static void
+get_merged_relation_stats(Oid relid, BlockNumber *pages, double *tuples,
+ double *allvisfrac, bool estimate)
+{
+ StatsRelationEntry *entry;
+ bool found;
+ Relation rel;
+
+ /* avoid recursive call and system objects */
+ if (nested_level > 0 || relid < FirstNormalObjectId)
+ return;
+
+ /*
+ * pg_dbms_stats doesn't handle system catalogs and its internal relation_stats_effective
+ */
+ if (dbms_stats_is_system_catalog_internal(relid))
+ return;
+
+ /*
+ * First, search from cache. If we have not cached stats for given relid
+ * yet, initialize newly created entry.
+ */
+ entry = hash_search(rel_stats, &relid, HASH_ENTER, &found);
+ if (!found)
+ init_rel_stats_entry(entry, relid);
+
+ /*
+ * If we don't have valid cache entry, retrieve stats from catalogs,
+ * pg_class and dbms_stats.relation_stats_locked, and merge them for planner use.
+ * We also cache curpages value to make plans stable.
+ */
+ if (!entry->valid)
+ {
+ bool has_dummy;
+
+ PG_TRY();
+ {
+ ++nested_level;
+
+ SPI_connect();
+
+ /*
+ * Retrieve per-tuple dummy statistics from relation_stats_locked table
+ * via SPI. If we don't have dummy statistics, we return false to
+ * tell caller thet we gave up to provide alternative statistics.
+ */
+ has_dummy = execute_plan(&rows_plan, rows_query, relid, NULL, true);
+ if (has_dummy)
+ {
+ HeapTuple tuple;
+ Form_pg_class form;
+ bool isnull;
+ Datum val;
+
+ /*
+ * Retrieve per-relation stats from pg_class system catalog.
+ * We use syscache to support indexes
+ */
+ tuple = SearchSysCache1(RELOID, ObjectIdGetDatum(relid));
+ if (!HeapTupleIsValid(tuple))
+ elog(ERROR, "cache lookup failed for relation %u", relid);
+ form = (Form_pg_class) GETSTRUCT(tuple);
+
+ /* Choose dummy or authentic */
+ val = get_binary_datum(1, &isnull);
+ entry->relpages = isnull ? form->relpages :
+ (BlockNumber) DatumGetInt32(val);
+ val = get_binary_datum(2, &isnull);
+ entry->reltuples = isnull ? form->reltuples :
+ (double) DatumGetFloat4(val);
+ val = get_binary_datum(3, &isnull);
+ entry->curpages = isnull ? InvalidBlockNumber :
+ (BlockNumber) DatumGetInt32(val);
+#if PG_VERSION_NUM >= 90200
+ val = get_binary_datum(4, &isnull);
+ entry->relallvisible = isnull ? form->relallvisible :
+ (BlockNumber) DatumGetInt32(val);
+#endif
+
+ ReleaseSysCache(tuple);
+
+ /* Mark this entry as valid. */
+ entry->valid = true;
+ }
+
+ SPI_finish();
+
+ --nested_level;
+ }
+ PG_CATCH();
+ {
+ --nested_level;
+ PG_RE_THROW();
+ }
+ PG_END_TRY();
+
+ /*
+ * If we don't dummy statistics, tell caller that we didn't change
+ * stats in Relation, and it's ok to use authentic statistics as-is.
+ */
+ if (!has_dummy)
+ return;
+ }
+
+ if (!estimate)
+ {
+ *pages = entry->relpages;
+ *tuples = entry->reltuples;
+ return;
+ }
+
+ /*
+ * Get current # of pages to estimate current # of tuples, based on
+ * tuple density at the last ANALYZE and current # of pages.
+ */
+ rel = relation_open(relid, NoLock);
+ rel->rd_rel->relpages = entry->relpages;
+ rel->rd_rel->reltuples = entry->reltuples;
+#if PG_VERSION_NUM >= 90200
+ rel->rd_rel->relallvisible = entry->relallvisible;
+#endif
+ dbms_stats_estimate_rel_size(rel, NULL, pages, tuples, allvisfrac,
+ entry->curpages);
+ relation_close(rel, NoLock);
+}
+
+/*
+ * get_merged_avgwidth
+ * get average width of the given column by merging dummy and authentic
+ * statistics
+ */
+static int32
+get_merged_avgwidth(Oid relid, AttrNumber attnum)
+{
+ HeapTuple tuple;
+
+ if (nested_level > 0 || relid < FirstNormalObjectId)
+ return 0; /* avoid recursive call and system objects */
+
+ if ((tuple = get_merged_column_stats(relid, attnum, false)) == NULL)
+ return 0;
+
+ return get_pg_statistic(tuple)->stawidth;
+}
+
+/*
+ * get_merged_column_stats
+ * get per-column statistic of given column
+ *
+ * We cache the result because this function is called for every used column.
+ */
+static HeapTuple
+get_merged_column_stats(Oid relid, AttrNumber attnum, bool inh)
+{
+ HeapTuple tuple;
+ HeapTuple statsTuple;
+
+ if (nested_level > 0 || relid < FirstNormalObjectId)
+ return NULL; /* avoid recursive call and system objects */
+
+ /* If the relation is system catalog, return NULL to use true statistics. */
+ if (dbms_stats_is_system_catalog_internal(relid))
+ return NULL;
+
+ /* Return cached statistics, if any. */
+ if ((tuple = column_cache_search(relid, attnum, inh)) != NULL)
+ return tuple;
+
+ /* Obtain statistics from syscache. This must be released afterward. */
+ statsTuple = SearchSysCache3(STATRELATTINH,
+ ObjectIdGetDatum(relid),
+ Int16GetDatum(attnum),
+ BoolGetDatum(inh));
+ PG_TRY();
+ {
+ ++nested_level;
+
+ SPI_connect();
+
+ /* Obtain dummy statistics. */
+ if (execute_plan(&tuple_plan, tuple_query, relid, &attnum, inh))
+ {
+ /* merge the dummy statistics and the true statistics */
+ tuple = dbms_stats_merge_internal(SPI_tuptable->vals[0], statsTuple,
+ SPI_tuptable->tupdesc);
+ }
+ else
+ {
+ /* if dummy statistics does not exist, use the true statistics */
+ tuple = statsTuple;
+ }
+
+ /* Cache merged result for subsequent calls. */
+ if (tuple != NULL)
+ tuple = column_cache_enter(tuple);
+
+ SPI_finish();
+
+ --nested_level;
+ }
+ PG_CATCH();
+ {
+ --nested_level;
+ PG_RE_THROW();
+ }
+ PG_END_TRY();
+
+ if (HeapTupleIsValid(statsTuple))
+ ReleaseSysCache(statsTuple);
+
+ return tuple;
+}
+
+/*
+ * column_cache_search
+ * Search statistic of the given column from the cache.
+ */
+static HeapTuple
+column_cache_search(Oid relid, AttrNumber attnum, bool inh)
+{
+ StatsRelationEntry *entry;
+ bool found;
+ ListCell *lc;
+
+ /*
+ * First, get cached relation stats. If we have not cached relation stats,
+ * we don't have column stats too.
+ */
+ entry = hash_search(rel_stats, &relid, HASH_FIND, &found);
+ if (!found )
+ return NULL;
+
+ /*
+ * It is assumed that not so many column_stats_effective are defined on a relation, so we
+ * use simple linear-search here. Using hash table for each relation would
+ * be another solution, but it seems overkill so far.
+ */
+ foreach(lc, entry->col_stats)
+ {
+ HeapTuple tuple = (HeapTuple) lfirst(lc);
+ Form_pg_statistic form = get_pg_statistic(tuple);
+
+ /* Find statistic of the given column from the cache. */
+ if (form->staattnum == attnum && form->stainherit == inh)
+ return tuple;
+ }
+
+ return NULL; /* not found */
+}
+
+/*
+ * Cache a per-column statistics. Cached statistics are valid through the
+ * current session, unless dummy statistics or table definition have been
+ * changed.
+ *
+ * We store statistics tuple in longer-lifetime context, CacheMemoryContext, to
+ * keep them alive during this session.
+ */
+static HeapTuple
+column_cache_enter(HeapTuple tuple)
+{
+ MemoryContext oldcontext;
+ HeapTuple newtuple;
+ Form_pg_statistic form;
+ StatsRelationEntry *entry;
+ bool found;
+
+ Assert(tuple != NULL);
+ Assert(!heap_attisnull(tuple, 1));
+
+ form = get_pg_statistic(tuple);
+
+ entry = hash_search(rel_stats, &form->starelid, HASH_ENTER, &found);
+ if (!found)
+ init_rel_stats_entry(entry, form->starelid);
+
+ /*
+ * Link new column statistics entry into the list in relation statsstics
+ * entry.
+ */
+ oldcontext = MemoryContextSwitchTo(CacheMemoryContext);
+ newtuple = heap_copytuple(tuple);
+ entry->col_stats = lappend(entry->col_stats, newtuple);
+ MemoryContextSwitchTo(oldcontext);
+
+ return newtuple;
+}
+
+/*
+ * Execute given plan. When given plan is NULL, create new plan from given
+ * query string, and execute it. This function can be used only for retrieving
+ * statistics of column_stats_effective and relation_stats_effective, because we assume #, types, and order
+ * of parameters here.
+ */
+static bool
+execute_plan(SPIPlanPtr *plan,
+ const char *query,
+ Oid relid,
+ const AttrNumber *attnum,
+ bool inh)
+{
+ int ret;
+ Oid argtypes[3] = { OIDOID, INT2OID, BOOLOID };
+ int nargs;
+ Datum values[3];
+ bool nulls[3] = { false, false, false };
+
+ nargs = (attnum ? 3 : 1);
+
+ /* When plan is not given, create plan from query string at first. */
+ if (*plan == NULL)
+ {
+ SPIPlanPtr p;
+ p = SPI_prepare(query, nargs, argtypes);
+ if (p == NULL)
+ elog(ERROR, "pg_dbms_stats: SPI_prepare => %d", SPI_result);
+ *plan = SPI_saveplan(p);
+ SPI_freeplan(p);
+ }
+
+ values[0] = ObjectIdGetDatum(relid);
+ values[1] = Int16GetDatum(attnum ? *attnum : 0);
+ values[2] = BoolGetDatum(inh);
+
+ ret = SPI_execute_plan(*plan, values, nulls, true, 1);
+ if (ret != SPI_OK_SELECT)
+ elog(ERROR, "pg_dbms_stats: SPI_execute_plan => %d", ret);
+
+ return SPI_processed > 0;
+}
+
+/*
+ * StatsCacheRelCallback
+ * Relcache inval callback function
+ *
+ * Invalidate cached statistic info of the given relid, or all cached statistic
+ * info if relid == InvalidOid. We don't complain even when we don't have such
+ * statistics.
+ *
+ * Note: arg is not used.
+ */
+static void
+StatsCacheRelCallback(Datum arg, Oid relid)
+{
+ HASH_SEQ_STATUS status;
+ StatsRelationEntry *entry;
+
+ hash_seq_init(&status, rel_stats);
+ while ((entry = hash_seq_search(&status)) != NULL)
+ {
+ if (relid == InvalidOid || relid == entry->relid)
+ {
+ /* Mark the relation entry as INVALID */
+ entry->valid = false;
+
+ /* Discard every column statistics */
+ list_free_deep(entry->col_stats);
+ entry->col_stats = NIL;
+ }
+ }
+
+ /* We always check throughout the list, so hash_seq_term is not necessary */
+}
+
+/*
+ * Initialize hash table for per-relation statistics.
+ */
+static void
+init_rel_stats(void)
+{
+ HTAB *hash;
+ HASHCTL ctl;
+
+ /* Prevent double initialization. */
+ if (rel_stats != NULL)
+ return;
+
+ MemSet(&ctl, 0, sizeof(ctl));
+ ctl.keysize = sizeof(Oid);
+ ctl.entrysize = sizeof(StatsRelationEntry);
+ ctl.hash = oid_hash;
+ ctl.hcxt = CacheMemoryContext;
+ hash = hash_create("dbms_stats relation statistics cache",
+ MAX_REL_CACHE,
+ &ctl, HASH_ELEM | HASH_CONTEXT);
+
+ rel_stats = hash;
+}
+
+/*
+ * Initialize newly added cache entry so that it represents an invalid cache
+ * entry for given relid.
+ */
+static void
+init_rel_stats_entry(StatsRelationEntry *entry, Oid relid)
+{
+ entry->relid = relid;
+ entry->valid = false;
+ entry->relpages = InvalidBlockNumber;
+ entry->reltuples = 0.0;
+ entry->relallvisible = InvalidBlockNumber;
+ entry->curpages = InvalidBlockNumber;
+ entry->col_stats = NIL;
+}
+
+/*
+ * dbms_stats_estimate_rel_size - estimate # pages and # tuples in a table or
+ * index
+ *
+ * We also estimate the fraction of the pages that are marked all-visible in
+ * the visibility map, for use in estimation of index-only scans.
+ *
+ * If attr_widths isn't NULL, it points to the zero-index entry of the
+ * relation's attr_widths[] cache; we fill this in if we have need to compute
+ * the attribute widths for estimation purposes.
+ *
+ * Note: This function is copied from plancat.c in core source tree of version
+ * 9.2, and customized for pg_dbms_stats. Changes from orignal one are:
+ * - rename by prefixing dbms_stats_
+ * - add 3 parameters (relpages, reltuples, curpage) to pass dummy curpage
+ * values.
+ * - Get current # of pages only when supplied curpages is InvalidBlockNumber
+ * - get franction of all-visible-pages
+ */
+static void
+dbms_stats_estimate_rel_size(Relation rel, int32 *attr_widths,
+ BlockNumber *pages, double *tuples,
+ double *allvisfrac, BlockNumber curpages)
+{
+ BlockNumber relpages;
+ double reltuples;
+ BlockNumber relallvisible;
+ double density;
+
+ switch (rel->rd_rel->relkind)
+ {
+ case RELKIND_RELATION:
+ case RELKIND_INDEX:
+ case RELKIND_TOASTVALUE:
+ /* it has storage, ok to call the smgr */
+ if (curpages == InvalidBlockNumber)
+ curpages = RelationGetNumberOfBlocks(rel);
+
+ /*
+ * HACK: if the relation has never yet been vacuumed, use a
+ * minimum size estimate of 10 pages. The idea here is to avoid
+ * assuming a newly-created table is really small, even if it
+ * currently is, because that may not be true once some data gets
+ * loaded into it. Once a vacuum or analyze cycle has been done
+ * on it, it's more reasonable to believe the size is somewhat
+ * stable.
+ *
+ * (Note that this is only an issue if the plan gets cached and
+ * used again after the table has been filled. What we're trying
+ * to avoid is using a nestloop-type plan on a table that has
+ * grown substantially since the plan was made. Normally,
+ * autovacuum/autoanalyze will occur once enough inserts have
+ * happened and cause cached-plan invalidation; but that doesn't
+ * happen instantaneously, and it won't happen at all for cases
+ * such as temporary tables.)
+ *
+ * We approximate "never vacuumed" by "has relpages = 0", which
+ * means this will also fire on genuinely empty relation_stats_effective. Not
+ * great, but fortunately that's a seldom-seen case in the real
+ * world, and it shouldn't degrade the quality of the plan too
+ * much anyway to err in this direction.
+ *
+ * There are two exceptions wherein we don't apply this heuristic.
+ * One is if the table has inheritance children. Totally empty
+ * parent tables are quite common, so we should be willing to
+ * believe that they are empty. Also, we don't apply the 10-page
+ * minimum to indexes.
+ */
+ if (curpages < 10 &&
+ rel->rd_rel->relpages == 0 &&
+ !rel->rd_rel->relhassubclass &&
+ rel->rd_rel->relkind != RELKIND_INDEX)
+ curpages = 10;
+
+ /* report estimated # pages */
+ *pages = curpages;
+ /* quick exit if rel is clearly empty */
+ if (curpages == 0)
+ {
+ *tuples = 0;
+ *allvisfrac = 0;
+ break;
+ }
+ /* coerce values in pg_class to more desirable types */
+ relpages = (BlockNumber) rel->rd_rel->relpages;
+ reltuples = (double) rel->rd_rel->reltuples;
+#if PG_VERSION_NUM >= 90200
+ relallvisible = (BlockNumber) rel->rd_rel->relallvisible;
+#else
+ relallvisible = 0;
+#endif
+ /*
+ * If it's an index, discount the metapage while estimating the
+ * number of tuples. This is a kluge because it assumes more than
+ * it ought to about index structure. Currently it's OK for
+ * btree, hash, and GIN indexes but suspect for GiST indexes.
+ */
+ if (rel->rd_rel->relkind == RELKIND_INDEX &&
+ relpages > 0)
+ {
+ curpages--;
+ relpages--;
+ }
+
+ /* estimate number of tuples from previous tuple density */
+ if (relpages > 0)
+ density = reltuples / (double) relpages;
+ else
+ {
+ /*
+ * When we have no data because the relation was truncated,
+ * estimate tuple width from attribute datatypes. We assume
+ * here that the pages are completely full, which is OK for
+ * tables (since they've presumably not been VACUUMed yet) but
+ * is probably an overestimate for indexes. Fortunately
+ * get_relation_info() can clamp the overestimate to the
+ * parent table's size.
+ *
+ * Note: this code intentionally disregards alignment
+ * considerations, because (a) that would be gilding the lily
+ * considering how crude the estimate is, and (b) it creates
+ * platform dependencies in the default plans which are kind
+ * of a headache for regression testing.
+ */
+ int32 tuple_width;
+
+ tuple_width = dbms_stats_get_rel_data_width(rel, attr_widths);
+ tuple_width += sizeof(HeapTupleHeaderData);
+ tuple_width += sizeof(ItemPointerData);
+ /* note: integer division is intentional here */
+ density = (BLCKSZ - SizeOfPageHeaderData) / tuple_width;
+ }
+ *tuples = rint(density * (double) curpages);
+
+ /*
+ * We use relallvisible as-is, rather than scaling it up like we
+ * do for the pages and tuples counts, on the theory that any
+ * pages added since the last VACUUM are most likely not marked
+ * all-visible. But costsize.c wants it converted to a fraction.
+ */
+ if (relallvisible == 0 || curpages <= 0)
+ *allvisfrac = 0;
+ else if ((double) relallvisible >= curpages)
+ *allvisfrac = 1;
+ else
+ *allvisfrac = (double) relallvisible / curpages;
+ break;
+ case RELKIND_SEQUENCE:
+ /* Sequences always have a known size */
+ *pages = 1;
+ *tuples = 1;
+ *allvisfrac = 0;
+ break;
+ case RELKIND_FOREIGN_TABLE:
+ /* Just use whatever's in pg_class */
+ *pages = rel->rd_rel->relpages;
+ *tuples = rel->rd_rel->reltuples;
+ *allvisfrac = 0;
+ break;
+ default:
+ /* else it has no disk storage; probably shouldn't get here? */
+ *pages = 0;
+ *tuples = 0;
+ *allvisfrac = 0;
+ break;
+ }
+}
+
+/*
+ * dbms_stats_get_rel_data_width
+ *
+ * Estimate the average width of (the data part of) the relation's tuples.
+ *
+ * If attr_widths isn't NULL, it points to the zero-index entry of the
+ * relation's attr_widths[] cache; use and update that cache as appropriate.
+ *
+ * Currently we ignore dropped column_stats_effective. Ideally those should be included
+ * in the result, but we haven't got any way to get info about them; and
+ * since they might be mostly NULLs, treating them as zero-width is not
+ * necessarily the wrong thing anyway.
+ *
+ * Note: This function is copied from plancat.c in core source tree of version
+ * 9.2, and just renamed.
+ */
+static int32
+dbms_stats_get_rel_data_width(Relation rel, int32 *attr_widths)
+{
+ int32 tuple_width = 0;
+ int i;
+
+ for (i = 1; i <= RelationGetNumberOfAttributes(rel); i++)
+ {
+ Form_pg_attribute att = rel->rd_att->attrs[i - 1];
+ int32 item_width;
+
+ if (att->attisdropped)
+ continue;
+
+ /* use previously cached data, if any */
+ if (attr_widths != NULL && attr_widths[i] > 0)
+ {
+ tuple_width += attr_widths[i];
+ continue;
+ }
+
+ /* This should match set_rel_width() in costsize.c */
+ item_width = get_attavgwidth(RelationGetRelid(rel), i);
+ if (item_width <= 0)
+ {
+ item_width = get_typavgwidth(att->atttypid, att->atttypmod);
+ Assert(item_width > 0);
+ }
+ if (attr_widths != NULL)
+ attr_widths[i] = item_width;
+ tuple_width += item_width;
+ }
+
+ return tuple_width;
+}
+
+#ifdef UNIT_TEST
+void test_pg_dbms_stats(int *passed, int *total);
+static void test_init_rel_stats(int *passed, int *total);
+static void test_init_rel_stats_entry(int *passed, int *total);
+
+void
+test_pg_dbms_stats(int *passed, int *total)
+{
+ int local_passed = 0;
+ int local_total = 0;
+
+ elog(WARNING, "==========");
+
+ /* Do tests here */
+ test_init_rel_stats(&local_passed, &local_total);
+ test_init_rel_stats_entry(&local_passed, &local_total);
+
+ elog(WARNING, "%s %d/%d passed", __FUNCTION__, local_passed, local_total);
+ *passed += local_passed;
+ *total += local_total;
+}
+
+static void
+test_init_rel_stats_entry(int *passed, int *total)
+{
+ int caseno = 0;
+ StatsRelationEntry entry;
+
+ /*
+ * *-*-1
+ */
+ caseno++;
+ init_rel_stats_entry(&entry, 1234);
+ if (entry.relid == 1234 &&
+ entry.valid == false &&
+ entry.relpages == InvalidBlockNumber &&
+ entry.reltuples == 0 &&
+ entry.relallvisible == InvalidBlockNumber &&
+ entry.curpages == InvalidBlockNumber &&
+ entry.col_stats == NIL)
+ {
+ elog(WARNING, "%s-%d ok", __FUNCTION__, caseno);
+ (*passed)++;
+ }
+ else
+ elog(WARNING, "%s-%d failed: initialized", __FUNCTION__, caseno);
+
+ (*total) += caseno;
+}
+
+static void
+test_init_rel_stats(int *passed, int *total)
+{
+ int caseno = 0;
+ static HTAB *org_rel_stats;
+
+ /*
+ * *-*-1
+ * - first call
+ */
+ caseno++;
+ init_rel_stats();
+ if (rel_stats != NULL)
+ {
+ elog(WARNING, "%s-%d ok", __FUNCTION__, caseno);
+ (*passed)++;
+ }
+ else
+ elog(WARNING, "%s-%d failed: rel_stats is NULL", __FUNCTION__, caseno);
+
+ /*
+ * *-*-2
+ * - second call
+ */
+ caseno++;
+ org_rel_stats = rel_stats;
+ init_rel_stats();
+ if (org_rel_stats == rel_stats)
+ {
+ elog(WARNING, "%s-%d ok", __FUNCTION__, caseno);
+ (*passed)++;
+ }
+ else
+ elog(WARNING, "%s-%d failed: rel_stats changed from %p to %p",
+ __FUNCTION__, caseno, org_rel_stats, rel_stats);
+
+ *total += caseno;
+}
+#endif
--- /dev/null
+# pg_dbms_stats extension
+
+comment = 'stabilize plans by fixing statistics'
+default_version = '1.0'
+module_pathname = '$libdir/pg_dbms_stats'
+relocatable = false
+schema = dbms_stats
--- /dev/null
+/*
+ * pg_dbms_stats.h
+ *
+ * Copyright (c) 2009-2012, NIPPON TELEGRAPH AND TELEPHONE CORPORATION
+ * Portions Copyright (c) 1996-2011, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ */
+
+#ifndef PG_DBMS_STATS_H
+#define PG_DBMS_STATS_H
+
+bool dbms_stats_is_system_schema_internal(char *schema_name);
+bool dbms_stats_is_system_catalog_internal(Oid regclass);
+
+#endif /* PG_DBMS_STATS_H */
--- /dev/null
+/ut_anyarray-*.sql
+/ut_imp_exp-*.sql
--- /dev/null
+CREATE VIEW plain_relations_statistic_v AS
+SELECT oid::regclass,
+ relpages,
+ reltuples,
+ pg_relation_size(oid) / 8192 curpages
+ FROM pg_class
+ ORDER BY oid::regclass::text;
+CREATE VIEW relations_locked_v AS
+SELECT relid::regclass,
+ relname,
+ relpages,
+ reltuples,
+ curpages
+ FROM dbms_stats._relation_stats_locked
+ ORDER BY relid;
+CREATE VIEW relations_backup_v AS
+SELECT id,
+ relid::regclass,
+ relname,
+ relpages,
+ reltuples,
+ curpages
+ FROM dbms_stats.relation_stats_backup
+ ORDER BY id, relid;
+CREATE VIEW plain_columns_statistic_v AS
+SELECT starelid::regclass, staattnum, stainherit,
+ stanullfrac, stawidth, stadistinct,
+ stakind1, stakind2, stakind3, stakind4,
+ staop1, staop2, staop3, staop4,
+ stanumbers1, stanumbers2, stanumbers3, stanumbers4,
+ stavalues1::text, stavalues2::text, stavalues3::text, stavalues4::text
+ FROM pg_statistic
+ ORDER BY starelid, staattnum, stainherit;
+CREATE VIEW columns_locked_v AS
+SELECT starelid::regclass, staattnum, attname, stainherit,
+ stanullfrac, stawidth, stadistinct,
+ stakind1, stakind2, stakind3, stakind4,
+ staop1, staop2, staop3, staop4,
+ stanumbers1, stanumbers2, stanumbers3, stanumbers4,
+ stavalues1, stavalues2, stavalues3, stavalues4
+ FROM dbms_stats._column_stats_locked c
+ JOIN pg_attribute a
+ ON (c.starelid = a.attrelid AND c.staattnum = a.attnum)
+ ORDER BY starelid, staattnum, stainherit;
+CREATE VIEW columns_backup_v AS
+SELECT id, statypid,
+ starelid::regclass, staattnum, stainherit,
+ stanullfrac, stawidth, stadistinct,
+ stakind1, stakind2, stakind3, stakind4,
+ staop1, staop2, staop3, staop4,
+ stanumbers1, stanumbers2, stanumbers3, stanumbers4,
+ stavalues1, stavalues2, stavalues3, stavalues4
+ FROM dbms_stats.column_stats_backup
+ ORDER BY id, starelid, staattnum, stainherit;
+CREATE TABLE dbms_stats.work (
+ nspname name NOT NULL,
+ relname name NOT NULL,
+ relpages int4 NOT NULL,
+ reltuples float4 NOT NULL,
+ curpages int4 NOT NULL,
+ last_analyze timestamp with time zone,
+ last_autoanalyze timestamp with time zone,
+ attname name,
+ nspname_of_typename name,
+ typname name,
+ atttypmod int4,
+ stainherit bool,
+ stanullfrac float4,
+ stawidth int4,
+ stadistinct float4,
+ stakind1 int2,
+ stakind2 int2,
+ stakind3 int2,
+ stakind4 int2,
+ staop1 oid,
+ staop2 oid,
+ staop3 oid,
+ staop4 oid,
+ stanumbers1 float4[],
+ stanumbers2 float4[],
+ stanumbers3 float4[],
+ stanumbers4 float4[],
+ stavalues1 dbms_stats.anyarray,
+ stavalues2 dbms_stats.anyarray,
+ stavalues3 dbms_stats.anyarray,
+ stavalues4 dbms_stats.anyarray
+);
+CREATE VIEW work_v AS
+SELECT nspname, relname, relpages, reltuples,
+ curpages, attname, nspname_of_typename, typname, atttypmod,
+ stainherit, stanullfrac, stawidth, stadistinct,
+ stakind1, stakind2, stakind3, stakind4,
+ staop1, staop2, staop3, staop4,
+ stanumbers1, stanumbers2, stanumbers3, stanumbers4,
+ stavalues1, stavalues2, stavalues3, stavalues4
+ FROM dbms_stats.work
+ ORDER BY nspname, relname, attname, stainherit;
--- /dev/null
+CREATE VIEW plain_relations_statistic_v AS
+SELECT oid::regclass,
+ relpages,
+ reltuples,
+ relallvisible,
+ pg_relation_size(oid) / 8192 curpages
+ FROM pg_class
+ ORDER BY oid::regclass::text;
+CREATE VIEW relations_locked_v AS
+SELECT relid::regclass,
+ relname,
+ relpages,
+ reltuples,
+ relallvisible,
+ curpages
+ FROM dbms_stats._relation_stats_locked
+ ORDER BY relid;
+CREATE VIEW relations_backup_v AS
+SELECT id,
+ relid::regclass,
+ relname,
+ relpages,
+ reltuples,
+ relallvisible,
+ curpages
+ FROM dbms_stats.relation_stats_backup
+ ORDER BY id, relid;
+CREATE VIEW plain_columns_statistic_v AS
+SELECT starelid::regclass, staattnum, stainherit,
+ stanullfrac, stawidth, stadistinct,
+ stakind1, stakind2, stakind3, stakind4, stakind5,
+ staop1, staop2, staop3, staop4, staop5,
+ stanumbers1, stanumbers2, stanumbers3, stanumbers4, stanumbers5,
+ stavalues1::text, stavalues2::text, stavalues3::text, stavalues4::text, stavalues5::text
+ FROM pg_statistic
+ ORDER BY starelid, staattnum, stainherit;
+CREATE VIEW columns_locked_v AS
+SELECT starelid::regclass, staattnum, attname, stainherit,
+ stanullfrac, stawidth, stadistinct,
+ stakind1, stakind2, stakind3, stakind4, stakind5,
+ staop1, staop2, staop3, staop4, staop5,
+ stanumbers1, stanumbers2, stanumbers3, stanumbers4, stanumbers5,
+ stavalues1, stavalues2, stavalues3, stavalues4, stavalues5
+ FROM dbms_stats._column_stats_locked c
+ JOIN pg_attribute a
+ ON (c.starelid = a.attrelid AND c.staattnum = a.attnum)
+ ORDER BY starelid, staattnum, stainherit;
+CREATE VIEW columns_backup_v AS
+SELECT id, statypid,
+ starelid::regclass, staattnum, stainherit,
+ stanullfrac, stawidth, stadistinct,
+ stakind1, stakind2, stakind3, stakind4, stakind5,
+ staop1, staop2, staop3, staop4, staop5,
+ stanumbers1, stanumbers2, stanumbers3, stanumbers4, stanumbers5,
+ stavalues1, stavalues2, stavalues3, stavalues4, stavalues5
+ FROM dbms_stats.column_stats_backup
+ ORDER BY id, starelid, staattnum, stainherit;
+CREATE TABLE dbms_stats.work (
+ nspname name NOT NULL,
+ relname name NOT NULL,
+ relpages int4 NOT NULL,
+ reltuples float4 NOT NULL,
+ relallvisible int4 NOT NULL,
+ curpages int4 NOT NULL,
+ last_analyze timestamp with time zone,
+ last_autoanalyze timestamp with time zone,
+ attname name,
+ nspname_of_typename name,
+ typname name,
+ atttypmod int4,
+ stainherit bool,
+ stanullfrac float4,
+ stawidth int4,
+ stadistinct float4,
+ stakind1 int2,
+ stakind2 int2,
+ stakind3 int2,
+ stakind4 int2,
+ stakind5 int2,
+ staop1 oid,
+ staop2 oid,
+ staop3 oid,
+ staop4 oid,
+ staop5 oid,
+ stanumbers1 float4[],
+ stanumbers2 float4[],
+ stanumbers3 float4[],
+ stanumbers4 float4[],
+ stanumbers5 float4[],
+ stavalues1 dbms_stats.anyarray,
+ stavalues2 dbms_stats.anyarray,
+ stavalues3 dbms_stats.anyarray,
+ stavalues4 dbms_stats.anyarray
+ ,stavalues5 dbms_stats.anyarray
+);
+CREATE VIEW work_v AS
+SELECT nspname, relname, relpages, reltuples, relallvisible,
+ curpages, attname, nspname_of_typename, typname, atttypmod,
+ stainherit, stanullfrac, stawidth, stadistinct,
+ stakind1, stakind2, stakind3, stakind4, stakind5,
+ staop1, staop2, staop3, staop4, staop5,
+ stanumbers1, stanumbers2, stanumbers3, stanumbers4, stanumbers5,
+ stavalues1, stavalues2, stavalues3, stavalues4, stavalues5
+ FROM dbms_stats.work
+ ORDER BY nspname, relname, attname, stainherit;
--- /dev/null
+/*
+ * No.1-1 CREATE EXTENSION
+ */
+-- No.1-1-1
+CREATE EXTENSION pg_dbms_stats;
+-- No.1-1-2
+DROP EXTENSION pg_dbms_stats;
+
+CREATE EXTENSION pg_dbms_stats;
+
+-- create no superuser and superuser
+SET client_min_messages = warning;
+DROP ROLE IF EXISTS regular_user;
+CREATE ROLE regular_user LOGIN;
+SET client_min_messages = fatal;
+CREATE ROLE postgres SUPERUSER CREATEDB CREATEROLE INHERIT LOGIN;
+
+-- create object
+CREATE TABLE pt0(id integer, day date);
+CREATE INDEX pt0_idx ON pt0(id);
+CREATE TABLE st0(id integer, name char(5));
+CREATE INDEX st0_idx ON st0(id);
+CREATE TABLE st1(val integer, str text);
+
+CREATE SCHEMA s0;
+CREATE TABLE s0.st0(id integer, num integer);
+CREATE INDEX st0_idx ON s0.st0(id);
+CREATE TABLE s0.st1() INHERITS(s0.st0);
+CREATE INDEX st1_idx ON s0.st1(id);
+CREATE TABLE s0.st2(id integer, txt text);
+CREATE INDEX st2_idx ON s0.st2(id);
+CREATE VIEW sv0 AS
+ SELECT st0.id, st0.num, st2.txt
+ FROM s0.st0 st0, s0.st2 st2
+ WHERE st0.id = st2.id;
+CREATE TYPE s0.sc0 AS (num integer, txt text);
+CREATE FOREIGN DATA WRAPPER test_wrapper;
+CREATE SERVER test_server
+ FOREIGN DATA WRAPPER test_wrapper;
+CREATE FOREIGN TABLE s0.sft0(id integer)
+ SERVER test_server;
+CREATE SEQUENCE s0.ss0 START 1;
+
+CREATE SCHEMA s1;
+CREATE TABLE s1.st0(id integer, num integer);
+CREATE SCHEMA s2;
+
+GRANT USAGE ON SCHEMA s0 TO regular_user;
+GRANT SELECT ON TABLE s0.st2 TO regular_user;
+
+CREATE TYPE complex AS (
+ r double precision,
+ i double precision
+);
+
+CREATE FUNCTION inform(VARIADIC arr text[]) RETURNS int AS $$
+DECLARE
+ str text := 'arguments are ';
+ count int;
+BEGIN
+ FOR count IN SELECT i FROM generate_subscripts($1, 1) g(i) LOOP
+ IF count != 1 THEN
+ str := str || ', ';
+ END IF;
+ IF $1[count] IS NULL THEN
+ str := str || '<NULL>';
+ ELSE
+ str := str || $1[count];
+ END IF;
+ END LOOP;
+ RAISE NOTICE '%', str;
+ RETURN 1;
+END;
+$$LANGUAGE plpgsql;
+
+CREATE VIEW lockd_io AS
+ SELECT relname, heap_blks_read hbr, heap_blks_hit hbh,
+ idx_blks_read ibr, idx_blks_hit ibh
+ FROM pg_statio_user_tables
+ WHERE schemaname = 'dbms_stats'
+ AND relname LIKE '%stats_locked'
+ ORDER BY relid;
+
+-- load data
+INSERT INTO st0 VALUES (1, 'test'), (2, 'test');
+INSERT INTO st1 SELECT i % 3, i % 3 FROM generate_series(1, 10000) t(i);
+INSERT INTO s0.st0 VALUES (1, 10), (2, 20);
+INSERT INTO s0.st1 VALUES (4, 40), (5, 50), (6, 60);
+INSERT INTO s0.st2 VALUES (1, '1'), (2, 'test'), (3, 'comment');
+INSERT INTO s1.st0 VALUES (1, 15), (2, 25), (3, 35), (4, 45);
+
+CREATE INDEX st1_idx ON st1 (val);
+CREATE INDEX st1_exp ON st1 (lower(str));
+
+VACUUM ANALYZE;
--- /dev/null
+\pset null '(null)'
+/*
+ * No.2-1 table definitions.
+ */
+-- No.2-1-1
+\d dbms_stats.backup_history
+-- No.2-1-2
+\d dbms_stats.column_stats_backup
+-- No.2-1-3
+\d dbms_stats._column_stats_locked
+-- No.2-1-4
+\d dbms_stats.relation_stats_backup
+-- No.2-1-5
+\d dbms_stats._relation_stats_locked
+
+/*
+ * No.2-2 view definitions.
+ */
+-- No.2-2-1
+\dS+ dbms_stats.column_stats_effective
+-- No.2-2-2
+\dS+ dbms_stats.relation_stats_effective
+-- No.2-2-3
+\dS+ dbms_stats.stats
+-- No.2-2-4
+\dS+ dbms_stats.column_stats_locked
+-- No.2-2-5
+\dS+ dbms_stats.relation_stats_locked
+
+/*
+ * No.5-1 dbms_stats.merge
+ */
+UPDATE pg_statistic SET
+ stanullfrac = staattnum,
+ stawidth = staattnum,
+ stadistinct = staattnum,
+ stakind1 = 4,
+ stakind2 = 1,
+ stakind3 = 2,
+ stakind4 = 3,
+ staop1 = 14,
+ staop2 = 11,
+ staop3 = 12,
+ staop4 = 13,
+ stanumbers1 = ARRAY[staattnum,4],
+ stanumbers2 = ARRAY[staattnum,1],
+ stanumbers3 = ARRAY[staattnum,2],
+ stanumbers4 = ARRAY[staattnum,3],
+ stavalues2 = array_cat(stavalues1,stavalues1),
+ stavalues3 = array_cat(array_cat(stavalues1,stavalues1),stavalues1),
+ stavalues4 = array_cat(array_cat(array_cat(stavalues1,stavalues1),stavalues1),stavalues1)
+ WHERE starelid = 'st0'::regclass;
+SELECT dbms_stats.lock_table_stats('st0');
+UPDATE dbms_stats._column_stats_locked SET
+ stainherit = 't',
+ stanullfrac = -staattnum,
+ stawidth = -staattnum,
+ stadistinct = -staattnum,
+ stakind1 = 2,
+ stakind2 = 3,
+ stakind3 = 4,
+ stakind4 = 1,
+ staop1 = 22,
+ staop2 = 23,
+ staop3 = 24,
+ staop4 = 21,
+ stanumbers1 = ARRAY[-staattnum,22],
+ stanumbers2 = ARRAY[-staattnum,23],
+ stanumbers3 = ARRAY[-staattnum,24],
+ stanumbers4 = ARRAY[-staattnum,21],
+ stavalues1 = stavalues3,
+ stavalues2 = stavalues2,
+ stavalues3 = stavalues1,
+ stavalues4 = stavalues4
+;
+
+/*
+ * Driver function dbms_stats.merge1
+ */
+CREATE FUNCTION dbms_stats.merge1(
+ lhs dbms_stats._column_stats_locked,
+ rhs pg_catalog.pg_statistic
+) RETURNS integer AS
+'$libdir/pg_dbms_stats', 'dbms_stats_merge'
+LANGUAGE C STABLE;
+
+SELECT * FROM columns_locked_v
+ WHERE starelid = 'st0'::regclass;
+SELECT * FROM plain_columns_statistic_v
+ WHERE starelid = 'st0'::regclass;
+
+SET client_min_messages TO LOG;
+
+-- No.5-1-1
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ FROM (SELECT dbms_stats.merge(NULL, s)
+ FROM pg_statistic s
+ WHERE starelid = 'st0'::regclass
+ AND staattnum = '1'::int2) m;
+
+-- No.5-1-2
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ FROM (SELECT dbms_stats.merge(v, NULL)
+ FROM dbms_stats._column_stats_locked v
+ WHERE starelid = 'st0'::regclass
+ AND staattnum = '2'::int2) m;
+
+-- No.5-1-3
+SELECT dbms_stats.merge(NULL, NULL);
+
+-- No.5-1-4
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ FROM (SELECT dbms_stats.merge(v, s)
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2) m;
+
+-- No.5-1-5
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ FROM (SELECT dbms_stats.merge(v, s)
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2) m;
+
+-- No.5-1-6
+SELECT dbms_stats.merge1(v, s)
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2;
+
+-- No.5-1-7
+SELECT dbms_stats.merge(NULL, (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ s.stakind1, s.stakind2, s.stakind3, s.stakind4,
+ s.staop1, s.staop2, s.staop3,
+ NULL, s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ))
+ FROM pg_statistic s
+ WHERE s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2;
+
+-- No.5-1-8
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ FROM (SELECT dbms_stats.merge(NULL, (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ s.stakind1, s.stakind2, s.stakind3, s.stakind4,
+ s.staop1, s.staop2, s.staop3, s.staop4,
+ NULL, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ))
+ FROM pg_statistic s
+ WHERE s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2) m;
+
+-- No.5-1-9
+SELECT dbms_stats.merge((
+ v.starelid::regclass, v.staattnum, v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ v.stakind1, v.stakind2, v.stakind3, v.stakind4,
+ v.staop1, v.staop2, v.staop3,
+ NULL, v.stanumbers1, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ), NULL)
+ FROM dbms_stats._column_stats_locked v
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2;
+
+-- No.5-1-10
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ FROM (SELECT dbms_stats.merge((
+ v.starelid::regclass, v.staattnum, v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ v.stakind1, v.stakind2, v.stakind3, v.stakind4,
+ v.staop1, v.staop2, v.staop3, v.staop4,
+ NULL, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ), NULL)
+ FROM dbms_stats._column_stats_locked v
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2) m;
+
+-- No.5-1-11
+SELECT dbms_stats.merge((
+ v.starelid::regclass, v.staattnum, v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ v.stakind1, v.stakind2, v.stakind3, v.stakind4,
+ v.staop1, v.staop2, v.staop3,
+ NULL, v.stanumbers1, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ), (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ s.stakind1, s.stakind2, s.stakind3, s.stakind4,
+ s.staop1, s.staop2, s.staop3,
+ NULL, s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ))
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2;
+
+-- No.5-1-12
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ FROM (SELECT dbms_stats.merge((
+ v.starelid::regclass, v.staattnum, v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ v.stakind1, v.stakind2, v.stakind3, v.stakind4,
+ v.staop1, v.staop2, v.staop3, v.staop4,
+ NULL, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ), (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ s.stakind1, s.stakind2, s.stakind3, s.stakind4,
+ s.staop1, s.staop2, s.staop3, s.staop4,
+ NULL, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ))
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2) m;
+
+-- No.5-1-13
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ FROM (SELECT dbms_stats.merge((
+ NULL, NULL, NULL,
+ NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL
+ ), s)
+ FROM pg_statistic s
+ WHERE s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2) m;
+
+-- No.5-1-14
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ FROM (SELECT dbms_stats.merge(v, (
+ NULL, NULL, NULL,
+ NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL))
+ FROM dbms_stats._column_stats_locked v
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2) m;
+
+-- No.5-1-15
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ FROM (SELECT dbms_stats.merge(v, s)
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2) m;
+
+-- No.5-1-16
+SELECT dbms_stats.merge((
+ v.starelid::regclass, v.staattnum, v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL
+ ), (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL))
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2;
+
+-- No.5-1-17
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ FROM (SELECT dbms_stats.merge((
+ v.starelid::regclass, v.staattnum, v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ v.stakind1, v.stakind2, v.stakind3, v.stakind4,
+ v.staop1, v.staop2, v.staop3,
+ NULL, v.stanumbers1, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ), (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ s.stakind1, s.stakind2, s.stakind3, s.stakind4,
+ s.staop1, s.staop2, s.staop3, s.staop4,
+ s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ))
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '1'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2) m;
+
+-- No.5-1-18
+SELECT dbms_stats.merge((
+ v.starelid::regclass, v.staattnum, v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ v.stakind1, v.stakind2, v.stakind3, v.stakind4,
+ v.staop1, v.staop2, v.staop3,
+ NULL, v.stanumbers1, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ), (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ s.stakind1, s.stakind2, s.stakind3, s.stakind4,
+ s.staop1, s.staop2, s.staop3,
+ NULL, s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ))
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '1'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2;
+
+-- No.5-1-19
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ FROM (SELECT dbms_stats.merge((
+ v.starelid::regclass, v.staattnum, v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ '1', '1', '1', '1',
+ v.staop1, v.staop2, v.staop3, v.staop4,
+ v.stanumbers1, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ), (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ '1', '1', '1', '1',
+ s.staop1, s.staop2, s.staop3, s.staop4,
+ s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ))
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2) m;
+
+-- No.5-1-20
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ FROM (SELECT dbms_stats.merge((v.starelid::regclass, v.staattnum, v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ '2', '2', '2', '2',
+ v.staop1, v.staop2, v.staop3, v.staop4,
+ v.stanumbers1, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ), (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ '2', '2', '2', '2',
+ s.staop1, s.staop2, s.staop3, s.staop4,
+ s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ))
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2) m;
+
+-- No.5-1-21
+SELECT dbms_stats.merge((v.starelid::regclass, '2', v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ '1', '1', '1', '1',
+ v.staop1, v.staop2, v.staop3, v.staop4,
+ v.stanumbers1, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ), (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ '1', '1', '1', '1',
+ s.staop1, s.staop2, s.staop3, s.staop4,
+ s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ))
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '1'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2;
+
+-- No.5-1-22
+SELECT dbms_stats.merge((v.starelid::regclass, '2', v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ '2', '2', '2', '2',
+ v.staop1, v.staop2, v.staop3, v.staop4,
+ v.stanumbers1, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ), (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ '2', '2', '2', '2',
+ s.staop1, s.staop2, s.staop3, s.staop4,
+ s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ))
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '1'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2;
+RESET client_min_messages;
+SELECT dbms_stats.unlock_database_stats();
+
+/*
+ * No.6-4 dbms_stats.is_target_relkind
+ */
+-- No.6-4-10
+SELECT dbms_stats.is_target_relkind('f');
+
+/*
+ * No.7-1 dbms_stats.backup
+ */
+DELETE FROM dbms_stats.backup_history;
+INSERT INTO dbms_stats.backup_history(id, time, unit) values(1, '2012-01-01', 'd');
+-- No.7-1-9
+SELECT dbms_stats.backup(1, 's0.sft0'::regclass, NULL);
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+
+-- No.7-1-11
+DELETE FROM dbms_stats.relation_stats_backup;
+SELECT dbms_stats.backup(1, NULL, 1::int2);
+SELECT relid::regclass FROM dbms_stats.relation_stats_backup
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, staattnum FROM dbms_stats.column_stats_backup
+ GROUP BY starelid, staattnum
+ ORDER BY starelid, staattnum;
+
+-- No.7-1-13
+DELETE FROM dbms_stats.relation_stats_backup;
+SELECT dbms_stats.backup(1, NULL::regclass, NULL);
+SELECT relid::regclass FROM dbms_stats.relation_stats_backup
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, staattnum FROM dbms_stats.column_stats_backup
+ GROUP BY starelid, staattnum
+ ORDER BY starelid, staattnum;
+
+-- No.7-1-17
+DELETE FROM dbms_stats.relation_stats_backup;
+SELECT dbms_stats.backup(NULL, 's0.st0'::regclass, NULL);
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+
+/*
+ * No.8-1 dbms_stats.backup
+ */
+SELECT setval('dbms_stats.backup_history_id_seq',1, false);
+/*
+ * Stab function dbms_stats.backup
+ */
+ALTER FUNCTION dbms_stats.backup(
+ backup_id int8,
+ relid regclass,
+ attnum int2)
+ RENAME TO truth_func_backup;
+
+CREATE OR REPLACE FUNCTION dbms_stats.backup(
+ backup_id int8,
+ regclass,
+ attnum int2)
+RETURNS int8 AS
+$$
+BEGIN
+ RAISE NOTICE 'arguments are %, %, %', $1, $2, $3;
+ RETURN 1;
+END;
+$$
+LANGUAGE plpgsql;
+
+-- No.8-1-1
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup('s0.st0'::regclass, 'id', 'dummy comment');
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+
+-- No.8-1-2
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup('s0.st0'::regclass, NULL, 'dummy comment');
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+
+-- No.8-1-3
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup(NULL::regclass, 'id', 'dummy comment');
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+
+-- No.8-1-4
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup(NULL::regclass, NULL, 'dummy comment');
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+
+-- No.8-1-5
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup(0, NULL, 'dummy comment');
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+
+-- No.8-1-6
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup('s0.st0'::regclass, NULL, 'dummy comment');
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+
+-- No.8-1-7
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup(
+ 'pg_toast.pg_toast_2618'::regclass,
+ NULL,
+ 'dummy comment');
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+
+-- No.8-1-8
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup('s0.st0_idx'::regclass, NULL, 'dummy comment');
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+
+-- No.8-1-9
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup('s0.ss0'::regclass, NULL, 'dummy comment');
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+
+-- No.8-1-10
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup('s0.sc0'::regclass, NULL, 'dummy comment');
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+
+-- No.8-1-11
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup('s0.sft0'::regclass, NULL, 'dummy comment');
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+
+-- No.8-1-12
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup('pg_catalog.pg_class'::regclass, NULL, 'dummy comment');
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+
+-- No.8-1-13
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup('s0.st0'::regclass, 'dummy', 'dummy comment');
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+
+-- No.8-1-14
+DELETE FROM dbms_stats.backup_history;
+DELETE FROM pg_statistic
+ WHERE starelid = 's0.st0'::regclass
+ AND staattnum = 1::int2;
+SELECT count(*) FROM dbms_stats.column_stats_effective
+ WHERE starelid = 's0.st0'::regclass
+ AND staattnum = 1::int2;
+SELECT dbms_stats.backup('s0.st0'::regclass, 'id', 'dummy comment');
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+
+/*
+ * Stab function dbms_stats.backup
+ */
+ALTER FUNCTION dbms_stats.backup(
+ relid regclass,
+ attname text,
+ comment text)
+ RENAME TO truth_func_backup;
+CREATE OR REPLACE FUNCTION dbms_stats.backup(
+ relid regclass DEFAULT NULL,
+ attname text DEFAULT NULL,
+ comment text DEFAULT NULL)
+RETURNS int8 AS
+$$
+BEGIN
+ IF $3 = '<NULL>' THEN
+ RAISE NOTICE 'third argument is not NULL but string "<NULL>"';
+ END IF;
+ RAISE NOTICE 'arguments are %, %, %', $1, $2, $3;
+ RETURN 1;
+END;
+$$
+LANGUAGE plpgsql;
+
+/*
+ * No.8-3 dbms_stats.backup_schema_stats
+ */
+SELECT setval('dbms_stats.backup_history_id_seq',9, false);
+-- No.8-3-1
+SELECT dbms_stats.backup_schema_stats('s0', 'comment');
+SELECT id, unit, comment FROM dbms_stats.backup_history
+ ORDER BY id DESC
+ LIMIT 1;
+-- No.8-3-2
+SELECT dbms_stats.backup_schema_stats('s00', 'comment');
+SELECT id, unit, comment FROM dbms_stats.backup_history
+ ORDER BY id DESC
+ LIMIT 1;
+-- No.8-3-3
+SELECT dbms_stats.backup_schema_stats('pg_catalog', 'comment');
+SELECT id, unit, comment FROM dbms_stats.backup_history
+ ORDER BY id DESC
+ LIMIT 1;
+
+/*
+ * Delete stab function dbms_stats.backup
+ */
+DROP FUNCTION dbms_stats.backup(
+ backup_id int8,
+ regclass,
+ attnum int2);
+ALTER FUNCTION dbms_stats.truth_func_backup(
+ backup_id int8,
+ regclass,
+ attnum int2)
+ RENAME TO backup;
+DROP FUNCTION dbms_stats.backup(
+ regclass,
+ attname text,
+ comment text);
+ALTER FUNCTION dbms_stats.truth_func_backup(
+ regclass,
+ attname text,
+ comment text)
+ RENAME TO backup;
+VACUUM ANALYZE;
+
+/*
+ * create backup statistics state A
+ */
+DELETE FROM dbms_stats.backup_history;
+
+INSERT INTO dbms_stats.backup_history(id, time, unit)
+ VALUES (1, '2012-02-29 23:59:56.999999', 'd');
+
+SELECT setval('dbms_stats.backup_history_id_seq',1);
+SELECT dbms_stats.backup();
+UPDATE dbms_stats.backup_history
+ SET time = '2012-02-29 23:59:57'
+ WHERE id = 2;
+SELECT dbms_stats.backup('s0.st0');
+UPDATE dbms_stats.backup_history
+ SET time = '2012-02-29 23:59:57.000001'
+ WHERE id = 3;
+SELECT dbms_stats.backup();
+UPDATE dbms_stats.backup_history
+ SET time = '2012-02-29 23:59:58'
+ WHERE id = 4;
+DELETE FROM dbms_stats.relation_stats_backup
+ WHERE id = 4;
+SELECT dbms_stats.backup('s0.st0', 'id');
+UPDATE dbms_stats.backup_history
+ SET time = '2012-03-01 00:00:00'
+ WHERE id = 5;
+SELECT dbms_stats.backup('s0.st0');
+UPDATE dbms_stats.backup_history
+ SET time = '2012-03-01 00:00:02'
+ WHERE id = 6;
+SELECT dbms_stats.backup('public.st0');
+UPDATE dbms_stats.backup_history
+ SET time = '2012-03-01 00:00:04'
+ WHERE id = 7;
+INSERT INTO dbms_stats.backup_history(time, unit)
+ VALUES ('2012-03-01 00:00:06', 's');
+SELECT dbms_stats.backup(8, c.oid, NULL)
+ FROM pg_catalog.pg_class c,
+ pg_catalog.pg_namespace n
+ WHERE n.nspname = 's0'
+ AND c.relnamespace = n.oid
+ AND c.relkind IN ('r', 'i');
+
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+SELECT * FROM relations_backup_v;
+SELECT * FROM columns_backup_v;
+
+VACUUM ANALYZE;
+
+/*
+ * No.9-1 dbms_stats.restore
+ */
+-- No.9-1-1
+DELETE FROM dbms_stats._relation_stats_locked;
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+SELECT dbms_stats.restore(2, 's0.st0', NULL);
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+COMMIT;
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+
+-- No.9-1-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, 'st0', NULL);
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+
+-- No.9-1-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, 's00.s0', NULL);
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+
+-- No.9-1-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(NULL, 's0.st0', NULL);
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+
+-- No.9-1-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, 's0.st0', 'id');
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+
+-- No.9-1-6
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, NULL, 'id');
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+
+-- No.9-1-7
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, 's0.st0', NULL);
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+
+-- No.9-1-8
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, NULL, NULL);
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+
+-- No.9-1-9
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(0, 's0.st0', NULL);
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+
+-- No.9-1-10
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, 0, 'id');
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+
+-- No.9-1-11
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(1, 's0.st0', NULL);
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+
+-- No.9-1-12
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, 's0.st0', 'dummy');
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+
+-- No.9-1-13
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(1, 's0.st0', 'id');
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+
+-- No.9-1-15
+DELETE FROM dbms_stats._relation_stats_locked;
+ALTER TABLE s1.st0 DROP COLUMN id;
+SELECT dbms_stats.restore(2, 's1.st0', 'id');
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+
+-- No.9-1-14
+DELETE FROM dbms_stats._relation_stats_locked;
+\set s1_st0_oid `psql contrib_regression -tA -c "SELECT c.oid FROM pg_class c, pg_namespace n WHERE c.relnamespace = n.oid AND n.nspname = 's1' AND c.relname = 'st0';"`
+DROP TABLE s1.st0;
+SET client_min_messages TO FATAL;
+SELECT dbms_stats.restore(2, :s1_st0_oid, NULL);
+RESET client_min_messages;
+\! tail ${PGDATA}/pg_log/postgresql.log > results/ut_no3_1_14.out
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+CREATE TABLE s1.st0(id integer, num integer);
+INSERT INTO s1.st0 VALUES (1, 15), (2, 25), (3, 35), (4, 45);
+VACUUM ANALYZE;
+-- No.9-1-16
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, 's0.st0', NULL);
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+
+-- No.9-1-17
+DELETE FROM dbms_stats._relation_stats_locked;
+INSERT INTO dbms_stats.relation_stats_backup(
+ id, relid, relname, relpages, reltuples,
+ curpages)
+ VALUES (2,
+ 'pg_toast.pg_toast_2618'::regclass,
+ 'pg_toast.pg_toast_2618', 1, 1,
+ 1);
+SELECT * FROM relations_backup_v
+ WHERE id = 2
+ AND relname = 'pg_toast.pg_toast_2618';
+SELECT dbms_stats.restore(2, 'pg_toast.pg_toast_2618', NULL);
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+DELETE FROM dbms_stats.relation_stats_backup
+ WHERE id = 2
+ AND relname = 'pg_toast.pg_toast_2618';
+
+-- No.9-1-18
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, 's0.st0_idx', NULL);
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+
+-- No.9-1-19
+DELETE FROM dbms_stats._relation_stats_locked;
+INSERT INTO dbms_stats.relation_stats_backup(
+ id, relid, relname, relpages, reltuples,
+ curpages)
+ VALUES (2, 's0.ss0'::regclass, 's0.ss0', 1, 1,
+ 1);
+SELECT * FROM relations_backup_v
+ WHERE id = 2
+ AND relname = 's0.ss0';
+SELECT dbms_stats.restore(2, 's0.ss0', NULL);
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+DELETE FROM dbms_stats.relation_stats_backup
+ WHERE id = 2
+ AND relname = 's0.ss0';
+
+-- No.9-1-20
+DELETE FROM dbms_stats._relation_stats_locked;
+INSERT INTO dbms_stats.relation_stats_backup(
+ id, relid, relname, relpages, reltuples,
+ curpages)
+ VALUES (2, 's0.sc0'::regclass, 's0.sc0', 1, 1,
+ 1);
+SELECT * FROM relations_backup_v
+ WHERE id = 2
+ AND relname = 's0.sc0';
+SELECT dbms_stats.restore(2, 's0.sc0', NULL);
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+DELETE FROM dbms_stats.relation_stats_backup
+ WHERE id = 2
+ AND relname = 's0.sc0';
+
+-- No.9-1-21
+DELETE FROM dbms_stats._relation_stats_locked;
+INSERT INTO dbms_stats.relation_stats_backup(
+ id, relid, relname, relpages, reltuples,
+ curpages)
+ VALUES (2, 's0.sft0'::regclass, 's0.sft0', 1, 1,
+ 1);
+SELECT * FROM relations_backup_v
+ WHERE id = 2
+ AND relname = 's0.sft0';
+SELECT dbms_stats.restore(2, 's0.sft0', NULL);
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+DELETE FROM dbms_stats.relation_stats_backup
+ WHERE id = 2
+ AND relname = 's0.sft0';
+
+-- No.9-1-22
+DELETE FROM dbms_stats._relation_stats_locked;
+INSERT INTO dbms_stats.relation_stats_backup(
+ id, relid, relname, relpages, reltuples,
+ curpages)
+ VALUES (2, 'pg_catalog.pg_class'::regclass, 'pg_catalog.pg_class', 1, 1,
+ 1);
+SELECT * FROM relations_backup_v
+ WHERE id = 2
+ AND relname = 'pg_catalog.pg_class';
+SELECT dbms_stats.restore(2, 'pg_catalog.pg_class', NULL);
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+DELETE FROM dbms_stats.relation_stats_backup
+ WHERE id = 2
+ AND relname = 'pg_catalog.pg_class';
+
+-- No.9-1-23
+DELETE FROM dbms_stats._relation_stats_locked;
+INSERT INTO dbms_stats._relation_stats_locked(relid, relname)
+ VALUES ('s0.st0'::regclass, 's0.st0');
+INSERT INTO dbms_stats._column_stats_locked(starelid, staattnum, stainherit)
+ SELECT starelid::regclass, staattnum, stainherit
+ FROM dbms_stats.column_stats_effective
+ WHERE starelid = 's0.st0'::regclass;
+SELECT id, unit, comment FROM dbms_stats.backup_history
+ WHERE id = 2;
+SELECT * FROM columns_locked_v;
+SELECT * FROM relations_locked_v;
+SELECT dbms_stats.restore(2, 's0.st0', NULL);
+SELECT * FROM relations_locked_v;
+SELECT * FROM columns_locked_v;
+
+-- No.9-1-24
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT id, unit, comment FROM dbms_stats.backup_history
+ WHERE id = 2;
+SELECT dbms_stats.restore(2, 's0.st0', NULL);
+SELECT * FROM relations_locked_v;
+SELECT * FROM columns_locked_v;
+
+/*
+ * Stab function dbms_stats.restore
+ */
+CREATE OR REPLACE FUNCTION dbms_stats.restore(
+ backup_id int8,
+ relid regclass DEFAULT NULL,
+ attname text DEFAULT NULL)
+RETURNS SETOF regclass AS
+$$
+BEGIN
+ RAISE NOTICE 'arguments are "%, %, %"', $1, $2, $3;
+ RETURN QUERY
+ SELECT c.oid::regclass
+ FROM pg_class c, dbms_stats.relation_stats_backup b
+ WHERE (c.oid = $2 OR $2 IS NULL)
+ AND c.oid = b.relid
+ AND c.relkind IN ('r', 'i')
+ AND (b.id <= $1 OR $1 IS NOT NULL)
+ GROUP BY c.oid
+ ORDER BY c.oid::regclass::text;
+END;
+$$
+LANGUAGE plpgsql;
+
+/*
+ * No.10-1 dbms_stats.restore_database_stats
+ */
+-- No.10-1-1
+SELECT dbms_stats.restore_database_stats('2012-02-29 23:59:57');
+-- No.10-1-2
+SELECT dbms_stats.restore_database_stats('2012-02-29 23:59:57.000002');
+-- No.10-1-3
+SELECT dbms_stats.restore_database_stats('2012-01-01 00:00:00');
+--#No.10-1-4 is skipped after lock tests
+--#No.10-1-5 is skipped after lock tests
+-- No.10-1-6
+SELECT dbms_stats.restore_database_stats('2012-02-29 23:59:57');
+
+/*
+ * No.10-2 dbms_stats.restore_schema_stats
+ */
+-- No.10-2-1
+SELECT dbms_stats.restore_schema_stats('s0', '2012-02-29 23:59:57');
+-- No.10-2-2
+SELECT dbms_stats.restore_schema_stats('s0', '2012-02-29 23:59:57.000002');
+-- No.10-2-3
+SELECT dbms_stats.restore_schema_stats('s0', '2012-01-01 00:00:00');
+--#No.10-2-4 is skipped after lock tests
+--#No.10-2-5 is skipped after lock tests
+-- No.10-2-6
+SELECT dbms_stats.restore_schema_stats('s0', '2012-02-29 23:59:57');
+-- No.10-2-7
+SELECT dbms_stats.restore_schema_stats('s0', '2012-02-29 23:59:57');
+--#No.10-2-8 is skipped after lock tests
+-- No.10-2-9
+SELECT dbms_stats.restore_schema_stats('s00', '2012-02-29 23:59:57');
+-- No.10-2-10
+SELECT dbms_stats.restore_schema_stats('pg_catalog', '2012-02-29 23:59:57');
+
+/*
+ * No.10-7 dbms_stats.restore_stats
+ */
+-- No.10-7-1
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore_stats(NULL);
+
+-- No.10-7-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore_stats(0);
+
+-- No.10-7-3
+DELETE FROM dbms_stats._relation_stats_locked;
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+SELECT dbms_stats.restore_stats(2);
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+COMMIT;
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+
+-- No.10-7-4
+DELETE FROM dbms_stats._relation_stats_locked;
+INSERT INTO dbms_stats._relation_stats_locked(relid, relname)
+ SELECT relid::regclass, relname
+ FROM dbms_stats.relation_stats_effective;
+INSERT INTO dbms_stats._column_stats_locked(starelid, staattnum, stainherit)
+ SELECT starelid::regclass, staattnum, stainherit
+ FROM dbms_stats.column_stats_effective;
+SELECT id, unit, comment FROM dbms_stats.backup_history
+ WHERE id = 8;
+SELECT * FROM columns_locked_v;
+SELECT * FROM relations_locked_v;
+SELECT dbms_stats.restore_stats(8);
+SELECT * FROM relations_locked_v;
+SELECT * FROM columns_locked_v;
+
+-- No.10-7-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT id, unit, comment FROM dbms_stats.backup_history
+ WHERE id = 8;
+SELECT dbms_stats.restore_stats(8);
+SELECT * FROM relations_locked_v;
+SELECT * FROM columns_locked_v;
+
+/*
+ * No.11-1 dbms_stats.lock(relid, attname)
+ */
+-- No.11-1-1
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock(NULL, NULL);
+-- No.11-1-2
+ALTER FUNCTION dbms_stats.lock(relid regclass)
+ RENAME TO truth_lock;
+CREATE FUNCTION dbms_stats.lock(relid regclass)
+RETURNS regclass AS
+$$
+BEGIN
+ RAISE NOTICE 'arguments are %', $1;
+ RETURN $1;
+END
+$$
+LANGUAGE plpgsql;
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.st0', NULL);
+DROP FUNCTION dbms_stats.lock(relid regclass);
+ALTER FUNCTION dbms_stats.truth_lock(relid regclass)
+ RENAME TO lock;
+-- No.11-1-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock(NULL, 'id');
+-- No.11-1-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.st0', 'id');
+SELECT * FROM relations_locked_v;
+SELECT * FROM columns_locked_v c;
+-- No.11-1-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock(0, 'id');
+-- No.11-1-6
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.st0', 'id');
+SELECT * FROM relations_locked_v;
+SELECT * FROM columns_locked_v c;
+-- No.11-1-7
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('pg_toast.pg_toast_2618', 'id');
+-- No.11-1-8
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.st0_idx', 'id');
+-- No.11-1-9
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('st1_exp', 'lower');
+SELECT * FROM relations_locked_v;
+SELECT * FROM columns_locked_v c;
+DELETE FROM dbms_stats._relation_stats_locked;
+
+-- No.11-1-10
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.ss0', 'id');
+-- No.11-1-11
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.sc0', 'id');
+-- No.11-1-12
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.sft0', 'id');
+-- No.11-1-13
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('pg_catalog.pg_class', 'id');
+-- No.11-1-14
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.st0', 'dummy');
+-- No.11-1-15
+DELETE FROM dbms_stats._relation_stats_locked;
+DELETE FROM pg_statistic
+ WHERE starelid = 's0.st0'::regclass;
+SELECT dbms_stats.lock('s0.st0', 'id');
+VACUUM ANALYZE;
+-- No.11-1-16
+DELETE FROM dbms_stats._relation_stats_locked;
+INSERT INTO dbms_stats._relation_stats_locked(
+ relid, relname, relpages, reltuples,
+ curpages)
+ VALUES('s0.st0'::regclass, 's0.st0', 1, 1640,
+ 1);
+SELECT dbms_stats.lock_column_stats('s0.st0','id');
+UPDATE dbms_stats._column_stats_locked
+ SET (stanullfrac, stawidth, stadistinct,
+ stakind1, stakind2, stakind3, stakind4,
+ staop1, staop2, staop3, staop4,
+ stanumbers1, stanumbers2, stanumbers3, stanumbers4,
+ stavalues1, stavalues2, stavalues3, stavalues4
+ ) = (
+ NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL)
+ WHERE starelid = 's0.st0'::regclass;
+SELECT dbms_stats.lock('s0.st0', 'id');
+SELECT * FROM relations_locked_v;
+SELECT * FROM columns_locked_v c;
+-- No.11-1-17
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.st0', 'id');
+SELECT * FROM relations_locked_v
+ WHERE relid = 's0.st0'::regclass;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+
+/*
+ * No.11-2 dbms_stats.lock(relid)
+ */
+-- No.11-2-1
+DELETE FROM dbms_stats._relation_stats_locked;
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+SELECT dbms_stats.lock('s0.st0');
+SELECT * FROM relations_locked_v;
+SELECT * FROM columns_locked_v c;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+COMMIT;
+
+-- No.11-2-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock(NULL);
+-- No.11-2-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('0');
+-- No.11-2-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.st0');
+SELECT * FROM relations_locked_v;
+SELECT * FROM columns_locked_v c;
+-- No.11-2-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('pg_toast.pg_toast_2618');
+-- No.11-2-6
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.st0_idx');
+SELECT * FROM relations_locked_v;
+SELECT * FROM columns_locked_v c;
+-- No.11-2-7
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.ss0');
+-- No.11-2-8
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.sc0');
+-- No.11-2-9
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.sft0');
+-- No.11-2-10
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('pg_catalog.pg_class');
+-- No.11-2-11
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_table_stats('s0.st0');
+UPDATE dbms_stats._relation_stats_locked
+ SET (relpages, reltuples,
+ curpages)
+ = (NULL, NULL, NULL
+ )
+ WHERE relid = 's0.st0'::regclass;
+SELECT dbms_stats.lock('s0.st0');
+SELECT * FROM relations_locked_v;
+SELECT * FROM columns_locked_v c;
+-- No.11-2-12
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.st0');
+SELECT * FROM relations_locked_v;
+SELECT * FROM columns_locked_v c;
+
+/*
+ * Stab function dbms_stats.lock
+ */
+ALTER FUNCTION dbms_stats.lock(relid regclass)
+ RENAME TO truth_lock;
+CREATE FUNCTION dbms_stats.lock(relid regclass)
+RETURNS regclass AS
+$$
+BEGIN
+ RAISE NOTICE 'arguments are %', $1;
+ RETURN $1;
+END
+$$
+LANGUAGE plpgsql;
+
+ALTER FUNCTION dbms_stats.lock(relid regclass, attname text)
+ RENAME TO truth_lock;
+CREATE FUNCTION dbms_stats.lock(
+ relid regclass,
+ attname text)
+RETURNS regclass AS
+$$
+BEGIN
+ RAISE NOTICE 'arguments are %, %', $1, $2;
+ RETURN $1;
+END
+$$
+LANGUAGE plpgsql;
+
+/*
+ * No.12-1 dbms_stats.lock_database_stats
+ */
+-- No.12-1-1
+SELECT dbms_stats.lock_database_stats();
+
+/*
+ * No.12-2 dbms_stats.lock_schema_stats
+ */
+-- No.12-2-1
+SELECT dbms_stats.lock_schema_stats('s0');
+-- No.12-2-2
+SELECT dbms_stats.lock_schema_stats('s00');
+-- No.12-2-3
+SELECT dbms_stats.lock_schema_stats('pg_catalog');
+
+/*
+ * No.12-3 dbms_stats.lock_table_stats(regclass)
+ */
+-- No.12-3-1
+SELECT dbms_stats.lock_table_stats('s0.st0');
+-- No.12-3-2
+SELECT dbms_stats.lock_table_stats('st0');
+-- No.12-3-3
+SELECT dbms_stats.lock_table_stats('s00.s0');
+
+/*
+ * No.12-4 dbms_stats.lock_table_stats(schemaname, tablename)
+ */
+-- No.12-4-1
+SELECT dbms_stats.lock_table_stats('s0', 'st0');
+
+/*
+ * No.12-5 dbms_stats.lock_column_stats(regclass, attname)
+ */
+-- No.12-5-1
+SELECT dbms_stats.lock_column_stats('s0.st0', 'id');
+-- No.12-5-2
+SELECT dbms_stats.lock_column_stats('st0', 'id');
+-- No.12-5-3
+SELECT dbms_stats.lock_column_stats('s00.s0', 'id');
+
+/*
+ * No.12-6 dbms_stats.lock_column_stats(schemaname, tablename, int2)
+ */
+-- No.12-6-1
+SELECT dbms_stats.lock_column_stats('s0', 'st0', 'id');
+
+/*
+ * Delete Stab function lock
+ */
+DROP FUNCTION dbms_stats.lock(relid regclass);
+ALTER FUNCTION dbms_stats.truth_lock(relid regclass)
+ RENAME TO lock;
+DROP FUNCTION dbms_stats.lock(relid regclass, attname text);
+ALTER FUNCTION dbms_stats.truth_lock(relid regclass, attname text)
+ RENAME TO lock;
+
+/*
+ * No.13-1 dbms_stats.unlock
+ */
+-- No.13-1-1
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+SELECT dbms_stats.unlock();
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+
+-- No.13-1-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT dbms_stats.unlock();
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+
+-- No.13-1-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+DELETE FROM dbms_stats._column_stats_locked;
+SELECT dbms_stats.unlock();
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+
+-- No.13-1-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.unlock();
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+
+-- No.13-1-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock('s0.st0');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.13-1-6
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock('st0');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.13-1-7
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+SELECT dbms_stats.unlock('s00.s0');
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+
+-- No.13-1-8
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT dbms_stats.unlock('s0.st0', 'id');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+
+-- No.13-1-9
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT dbms_stats.unlock('s0.st0', 'dummy');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+
+-- No.13-1-10
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+DELETE FROM dbms_stats._column_stats_locked;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT dbms_stats.unlock('s0.st0', 'id');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, staattnum FROM dbms_stats._column_stats_locked
+ GROUP BY starelid, staattnum
+ ORDER BY starelid;
+
+-- No.13-1-11
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, staattnum FROM dbms_stats._column_stats_locked
+ GROUP BY starelid, staattnum
+ ORDER BY starelid;
+SELECT dbms_stats.unlock(NULL, 'id');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, staattnum FROM dbms_stats._column_stats_locked
+ GROUP BY starelid, staattnum
+ ORDER BY starelid;
+
+-- No.13-1-12
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, staattnum FROM dbms_stats._column_stats_locked
+ GROUP BY starelid, staattnum
+ ORDER BY starelid;
+SELECT dbms_stats.unlock('s0.st0', NULL);
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, staattnum FROM dbms_stats._column_stats_locked
+ GROUP BY starelid, staattnum
+ ORDER BY starelid;
+
+-- No.13-1-13
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+SELECT dbms_stats.unlock();
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+COMMIT;
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+
+/*
+ * No.14-1 dbms_stats.unlock_database_stats
+ */
+-- No.14-1-1
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+SELECT dbms_stats.unlock_database_stats();
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+
+-- No.14-1-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+DELETE FROM dbms_stats._column_stats_locked;
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.unlock_database_stats();
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+
+-- No.14-1-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.unlock_database_stats();
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+
+-- No.14-1-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+SELECT dbms_stats.unlock_database_stats();
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+COMMIT;
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+
+/*
+ * No.14-2 dbms_stats.unlock_schema_stats
+ */
+-- No.14-2-1
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_schema_stats('s0');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+
+-- No.14-2-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+DELETE FROM dbms_stats._column_stats_locked;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_schema_stats('s0');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.14-2-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_schema_stats('s0');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.14-2-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_schema_stats('s0');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.14-2-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_schema_stats('s00');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.14-2-6
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_schema_stats('pg_catalog');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.14-2-7
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_schema_stats(NULL);
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.14-2-8
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+SELECT dbms_stats.unlock_schema_stats('s0');
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+COMMIT;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+/*
+ * No.14-3 dbms_stats.unlock_table_stats(regclass)
+ */
+-- No.14-3-1
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_table_stats('s0.st0');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+
+-- No.14-3-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+DELETE FROM dbms_stats._column_stats_locked;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_table_stats('s0.st0');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.14-3-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_table_stats('s0.st0');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.14-3-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_table_stats('s0.st0');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.14-3-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_table_stats('st0');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.14-3-6
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_table_stats('s00.s0');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.14-3-7
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_table_stats(NULL);
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.14-3-8
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+SELECT dbms_stats.unlock_table_stats('s0.st0');
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+COMMIT;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+/*
+ * No.14-4 dbms_stats.unlock_table_stats(schemaname, tablename)
+ */
+-- No.14-4-1
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_table_stats('s0','st0');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+
+-- No.14-4-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+DELETE FROM dbms_stats._column_stats_locked;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_table_stats('s0', 'st0');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.14-4-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_table_stats('s0', 'st0');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.14-4-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_table_stats('s0', 'st0');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.14-4-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_table_stats('s00', 's0');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.14-4-6
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_table_stats(NULL, 'st0');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.14-4-7
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_table_stats('s0', NULL);
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.14-4-8
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+SELECT dbms_stats.unlock_table_stats('s0', 'st0');
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+COMMIT;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+/*
+ * No.14-5 dbms_stats.unlock_column_stats(regclass, attname)
+ */
+-- No.14-5-1
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT dbms_stats.unlock_column_stats('s0.st0', 'id');
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+
+-- No.14-5-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+DELETE FROM dbms_stats._column_stats_locked;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT dbms_stats.unlock_column_stats('s0.st0', 'id');
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+
+-- No.14-5-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT dbms_stats.unlock_column_stats('s0.st0', 'id');
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+
+-- No.14-5-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT dbms_stats.unlock_column_stats('st0', 'id');
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+
+-- No.14-5-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT dbms_stats.unlock_column_stats('s0.st0', 'dummy');
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+
+-- No.14-5-6
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT dbms_stats.unlock_column_stats('s00.s0', 'id');
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+
+-- No.14-5-7
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT dbms_stats.unlock_column_stats(NULL, 'id');
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+
+-- No.14-5-8
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT dbms_stats.unlock_column_stats('s0.st0', NULL);
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+
+-- No.14-5-9
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+SELECT dbms_stats.unlock_column_stats('s0.st0', 'id');
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+COMMIT;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+
+/*
+ * No.14-6 dbms_stats.unlock_column_stats(schemaname, tablename, attname)
+ */
+-- No.14-6-1
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT dbms_stats.unlock_column_stats('s0', 'st0', 'id');
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+
+-- No.14-6-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+DELETE FROM dbms_stats._column_stats_locked;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT dbms_stats.unlock_column_stats('s0', 'st0', 'id');
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+
+-- No.14-6-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT dbms_stats.unlock_column_stats('s0', 'st0', 'id');
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+
+-- No.14-6-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT dbms_stats.unlock_column_stats('s0', 'st0', 'dummy');
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+
+-- No.14-6-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT dbms_stats.unlock_column_stats(NULL, 'st0', 'id');
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+
+-- No.14-6-6
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT dbms_stats.unlock_column_stats('s0', NULL, 'id');
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+
+-- No.14-6-7
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT dbms_stats.unlock_column_stats('s0', 'st0', NULL);
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+
+-- No.14-6-8
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+SELECT dbms_stats.unlock_column_stats('s0', 'st0', 'id');
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+COMMIT;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
--- /dev/null
+\pset null '(null)'
+/*
+ * No.2-1 table definitions.
+ */
+-- No.2-1-1
+\d dbms_stats.backup_history
+-- No.2-1-2
+\d dbms_stats.column_stats_backup
+-- No.2-1-3
+\d dbms_stats._column_stats_locked
+-- No.2-1-4
+\d dbms_stats.relation_stats_backup
+-- No.2-1-5
+\d dbms_stats._relation_stats_locked
+
+/*
+ * No.2-2 view definitions.
+ */
+-- No.2-2-1
+\dS+ dbms_stats.column_stats_effective
+-- No.2-2-2
+\dS+ dbms_stats.relation_stats_effective
+-- No.2-2-3
+\dS+ dbms_stats.stats
+-- No.2-2-4
+\dS+ dbms_stats.column_stats_locked
+-- No.2-2-5
+\dS+ dbms_stats.relation_stats_locked
+
+/*
+ * No.5-1 dbms_stats.merge
+ */
+UPDATE pg_statistic SET
+ stanullfrac = staattnum,
+ stawidth = staattnum,
+ stadistinct = staattnum,
+ stakind1 = 4,
+ stakind2 = 1,
+ stakind3 = 2,
+ stakind4 = 3,
+ stakind5 = 5,
+ staop1 = 14,
+ staop2 = 11,
+ staop3 = 12,
+ staop4 = 13,
+ staop5 = 15,
+ stanumbers1 = ARRAY[staattnum,4],
+ stanumbers2 = ARRAY[staattnum,1],
+ stanumbers3 = ARRAY[staattnum,2],
+ stanumbers4 = ARRAY[staattnum,3],
+ stanumbers5 = ARRAY[staattnum,5],
+ stavalues2 = array_cat(stavalues1,stavalues1),
+ stavalues3 = array_cat(array_cat(stavalues1,stavalues1),stavalues1),
+ stavalues4 = array_cat(array_cat(array_cat(stavalues1,stavalues1),stavalues1),stavalues1)
+ ,stavalues5 = array_cat(array_cat(array_cat(array_cat(stavalues1,stavalues1),stavalues1),stavalues1),stavalues1)
+ WHERE starelid = 'st0'::regclass;
+SELECT dbms_stats.lock_table_stats('st0');
+UPDATE dbms_stats._column_stats_locked SET
+ stainherit = 't',
+ stanullfrac = -staattnum,
+ stawidth = -staattnum,
+ stadistinct = -staattnum,
+ stakind1 = 2,
+ stakind2 = 3,
+ stakind3 = 4,
+ stakind4 = 1,
+ stakind5 = 5,
+ staop1 = 22,
+ staop2 = 23,
+ staop3 = 24,
+ staop4 = 21,
+ staop5 = 25,
+ stanumbers1 = ARRAY[-staattnum,22],
+ stanumbers2 = ARRAY[-staattnum,23],
+ stanumbers3 = ARRAY[-staattnum,24],
+ stanumbers4 = ARRAY[-staattnum,21],
+ stanumbers5 = ARRAY[-staattnum,25],
+ stavalues1 = stavalues3,
+ stavalues2 = stavalues2,
+ stavalues3 = stavalues1,
+ stavalues4 = stavalues4
+ ,stavalues5 = stavalues5
+;
+
+/*
+ * Driver function dbms_stats.merge1
+ */
+CREATE FUNCTION dbms_stats.merge1(
+ lhs dbms_stats._column_stats_locked,
+ rhs pg_catalog.pg_statistic
+) RETURNS integer AS
+'$libdir/pg_dbms_stats', 'dbms_stats_merge'
+LANGUAGE C STABLE;
+
+SELECT * FROM columns_locked_v
+ WHERE starelid = 'st0'::regclass;
+SELECT * FROM plain_columns_statistic_v
+ WHERE starelid = 'st0'::regclass;
+
+SET client_min_messages TO LOG;
+
+-- No.5-1-1
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).stakind5,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).staop5,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stanumbers5,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ ,(m.merge).stavalues5
+ FROM (SELECT dbms_stats.merge(NULL, s)
+ FROM pg_statistic s
+ WHERE starelid = 'st0'::regclass
+ AND staattnum = '1'::int2) m;
+
+-- No.5-1-2
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).stakind5,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).staop5,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stanumbers5,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ ,(m.merge).stavalues5
+ FROM (SELECT dbms_stats.merge(v, NULL)
+ FROM dbms_stats._column_stats_locked v
+ WHERE starelid = 'st0'::regclass
+ AND staattnum = '2'::int2) m;
+
+-- No.5-1-3
+SELECT dbms_stats.merge(NULL, NULL);
+
+-- No.5-1-4
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).stakind5,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).staop5,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stanumbers5,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ ,(m.merge).stavalues5
+ FROM (SELECT dbms_stats.merge(v, s)
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2) m;
+
+-- No.5-1-5
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).stakind5,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).staop5,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stanumbers5,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ ,(m.merge).stavalues5
+ FROM (SELECT dbms_stats.merge(v, s)
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2) m;
+
+-- No.5-1-6
+SELECT dbms_stats.merge1(v, s)
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2;
+
+-- No.5-1-7
+SELECT dbms_stats.merge(NULL, (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ s.stakind1, s.stakind2, s.stakind3, s.stakind4,
+ s.stakind5,
+ s.staop1, s.staop2, s.staop3,
+ s.staop4,
+ NULL, s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stanumbers5,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ,s.stavalues5
+ ))
+ FROM pg_statistic s
+ WHERE s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2;
+
+-- No.5-1-8
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).stakind5,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).staop5,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stanumbers5,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ ,(m.merge).stavalues5
+ FROM (SELECT dbms_stats.merge(NULL, (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ s.stakind1, s.stakind2, s.stakind3, s.stakind4,
+ s.stakind5,
+ s.staop1, s.staop2, s.staop3, s.staop4,
+ s.staop5,
+ NULL, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stanumbers5,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ,s.stavalues5
+ ))
+ FROM pg_statistic s
+ WHERE s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2) m;
+
+-- No.5-1-9
+SELECT dbms_stats.merge((
+ v.starelid::regclass, v.staattnum, v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ v.stakind1, v.stakind2, v.stakind3, v.stakind4,
+ v.stakind5,
+ v.staop1, v.staop2, v.staop3,
+ v.staop4,
+ NULL, v.stanumbers1, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stanumbers5,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ,v.stavalues5
+ ), NULL)
+ FROM dbms_stats._column_stats_locked v
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2;
+
+-- No.5-1-10
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).stakind5,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).staop5,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stanumbers5,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ ,(m.merge).stavalues5
+ FROM (SELECT dbms_stats.merge((
+ v.starelid::regclass, v.staattnum, v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ v.stakind1, v.stakind2, v.stakind3, v.stakind4,
+ v.stakind5,
+ v.staop1, v.staop2, v.staop3, v.staop4,
+ v.staop5,
+ NULL, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stanumbers5,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ,v.stavalues5
+ ), NULL)
+ FROM dbms_stats._column_stats_locked v
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2) m;
+
+-- No.5-1-11
+SELECT dbms_stats.merge((
+ v.starelid::regclass, v.staattnum, v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ v.stakind1, v.stakind2, v.stakind3, v.stakind4,
+ v.stakind5,
+ v.staop1, v.staop2, v.staop3,
+ v.staop4,
+ NULL, v.stanumbers1, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stanumbers5,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ,v.stavalues5
+ ), (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ s.stakind1, s.stakind2, s.stakind3, s.stakind4,
+ s.stakind5,
+ s.staop1, s.staop2, s.staop3,
+ s.staop4,
+ NULL, s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stanumbers5,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ,s.stavalues5
+ ))
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2;
+
+-- No.5-1-12
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).stakind5,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).staop5,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stanumbers5,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ ,(m.merge).stavalues5
+ FROM (SELECT dbms_stats.merge((
+ v.starelid::regclass, v.staattnum, v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ v.stakind1, v.stakind2, v.stakind3, v.stakind4,
+ v.stakind5,
+ v.staop1, v.staop2, v.staop3, v.staop4,
+ v.staop5,
+ NULL, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stanumbers5,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ,v.stavalues5
+ ), (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ s.stakind1, s.stakind2, s.stakind3, s.stakind4,
+ s.stakind5,
+ s.staop1, s.staop2, s.staop3, s.staop4,
+ s.staop5,
+ NULL, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stanumbers5,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ,s.stavalues5
+ ))
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2) m;
+
+-- No.5-1-13
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).stakind5,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).staop5,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stanumbers5,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ ,(m.merge).stavalues5
+ FROM (SELECT dbms_stats.merge((
+ NULL, NULL, NULL,
+ NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL
+ ,NULL, NULL, NULL, NULL
+ ), s)
+ FROM pg_statistic s
+ WHERE s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2) m;
+
+-- No.5-1-14
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).stakind5,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).staop5,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stanumbers5,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ ,(m.merge).stavalues5
+ FROM (SELECT dbms_stats.merge(v, (
+ NULL, NULL, NULL,
+ NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL))
+ FROM dbms_stats._column_stats_locked v
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2) m;
+
+-- No.5-1-15
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).stakind5,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).staop5,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stanumbers5,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ ,(m.merge).stavalues5
+ FROM (SELECT dbms_stats.merge(v, s)
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2) m;
+
+-- No.5-1-16
+SELECT dbms_stats.merge((
+ v.starelid::regclass, v.staattnum, v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL
+ ,NULL, NULL, NULL, NULL
+ ), (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL))
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2;
+
+-- No.5-1-17
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).stakind5,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).staop5,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stanumbers5,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ ,(m.merge).stavalues5
+ FROM (SELECT dbms_stats.merge((
+ v.starelid::regclass, v.staattnum, v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ v.stakind1, v.stakind2, v.stakind3, v.stakind4,
+ v.stakind5,
+ v.staop1, v.staop2, v.staop3,
+ v.staop4,
+ NULL, v.stanumbers1, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stanumbers5,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ,v.stavalues5
+ ), (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ s.stakind1, s.stakind2, s.stakind3, s.stakind4,
+ s.stakind5,
+ s.staop1, s.staop2, s.staop3, s.staop4,
+ s.staop5,
+ s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stanumbers5,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ,s.stavalues5
+ ))
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '1'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2) m;
+
+-- No.5-1-18
+SELECT dbms_stats.merge((
+ v.starelid::regclass, v.staattnum, v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ v.stakind1, v.stakind2, v.stakind3, v.stakind4,
+ v.stakind5,
+ v.staop1, v.staop2, v.staop3,
+ v.staop4,
+ NULL, v.stanumbers1, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stanumbers5,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ,v.stavalues5
+ ), (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ s.stakind1, s.stakind2, s.stakind3, s.stakind4,
+ s.stakind5,
+ s.staop1, s.staop2, s.staop3,
+ s.staop4,
+ NULL, s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stanumbers5,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ,s.stavalues5
+ ))
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '1'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2;
+
+-- No.5-1-19
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).stakind5,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).staop5,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stanumbers5,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ ,(m.merge).stavalues5
+ FROM (SELECT dbms_stats.merge((
+ v.starelid::regclass, v.staattnum, v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ '1', '1', '1', '1',
+ '1',
+ v.staop1, v.staop2, v.staop3, v.staop4,
+ v.staop5,
+ v.stanumbers1, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stanumbers5,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ,v.stavalues5
+ ), (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ '1', '1', '1', '1',
+ '1',
+ s.staop1, s.staop2, s.staop3, s.staop4,
+ s.staop5,
+ s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stanumbers5,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ,s.stavalues5
+ ))
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2) m;
+
+-- No.5-1-20
+SELECT (m.merge).starelid::regclass,
+ (m.merge).staattnum,
+ (m.merge).stainherit,
+ (m.merge).stanullfrac,
+ (m.merge).stawidth,
+ (m.merge).stadistinct,
+ (m.merge).stakind1,
+ (m.merge).stakind2,
+ (m.merge).stakind3,
+ (m.merge).stakind4,
+ (m.merge).stakind5,
+ (m.merge).staop1,
+ (m.merge).staop2,
+ (m.merge).staop3,
+ (m.merge).staop4,
+ (m.merge).staop5,
+ (m.merge).stanumbers1,
+ (m.merge).stanumbers2,
+ (m.merge).stanumbers3,
+ (m.merge).stanumbers4,
+ (m.merge).stanumbers5,
+ (m.merge).stavalues1,
+ (m.merge).stavalues2,
+ (m.merge).stavalues3,
+ (m.merge).stavalues4
+ ,(m.merge).stavalues5
+ FROM (SELECT dbms_stats.merge((v.starelid::regclass, v.staattnum, v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ '2', '2', '2', '2',
+ '2',
+ v.staop1, v.staop2, v.staop3, v.staop4,
+ v.staop5,
+ v.stanumbers1, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stanumbers5,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ,v.stavalues5
+ ), (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ '2', '2', '2', '2',
+ '2',
+ s.staop1, s.staop2, s.staop3, s.staop4,
+ s.staop5,
+ s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stanumbers5,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ,s.stavalues5
+ ))
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '2'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2) m;
+
+-- No.5-1-21
+SELECT dbms_stats.merge((v.starelid::regclass, '2', v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ '1', '1', '1', '1',
+ '1',
+ v.staop1, v.staop2, v.staop3, v.staop4,
+ v.staop5,
+ v.stanumbers1, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stanumbers5,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ,v.stavalues5
+ ), (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ '1', '1', '1', '1',
+ '1',
+ s.staop1, s.staop2, s.staop3, s.staop4,
+ s.staop5,
+ s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stanumbers5,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ,s.stavalues5
+ ))
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '1'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2;
+
+-- No.5-1-22
+SELECT dbms_stats.merge((v.starelid::regclass, '2', v.stainherit,
+ v.stanullfrac, v.stawidth, v.stadistinct,
+ '2', '2', '2', '2',
+ '2',
+ v.staop1, v.staop2, v.staop3, v.staop4,
+ v.staop5,
+ v.stanumbers1, v.stanumbers2, v.stanumbers3, v.stanumbers4,
+ v.stanumbers5,
+ v.stavalues1, v.stavalues2, v.stavalues3, v.stavalues4
+ ,v.stavalues5
+ ), (
+ s.starelid::regclass, s.staattnum, s.stainherit,
+ s.stanullfrac, s.stawidth, s.stadistinct,
+ '2', '2', '2', '2',
+ '2',
+ s.staop1, s.staop2, s.staop3, s.staop4,
+ s.staop5,
+ s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4,
+ s.stanumbers5,
+ s.stavalues1, s.stavalues2, s.stavalues3, s.stavalues4
+ ,s.stavalues5
+ ))
+ FROM dbms_stats._column_stats_locked v,
+ pg_statistic s
+ WHERE v.starelid = 'st0'::regclass
+ AND v.staattnum = '1'::int2
+ AND s.starelid = 'st0'::regclass
+ AND s.staattnum = '1'::int2;
+RESET client_min_messages;
+SELECT dbms_stats.unlock_database_stats();
+
+/*
+ * No.6-4 dbms_stats.is_target_relkind
+ */
+-- No.6-4-10
+SELECT dbms_stats.is_target_relkind('f');
+
+/*
+ * No.7-1 dbms_stats.backup
+ */
+DELETE FROM dbms_stats.backup_history;
+INSERT INTO dbms_stats.backup_history(id, time, unit) values(1, '2012-01-01', 'd');
+-- No.7-1-9
+SELECT dbms_stats.backup(1, 's0.sft0'::regclass, NULL);
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+
+-- No.7-1-11
+DELETE FROM dbms_stats.relation_stats_backup;
+SELECT dbms_stats.backup(1, NULL, 1::int2);
+SELECT relid::regclass FROM dbms_stats.relation_stats_backup
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, staattnum FROM dbms_stats.column_stats_backup
+ GROUP BY starelid, staattnum
+ ORDER BY starelid, staattnum;
+
+-- No.7-1-13
+DELETE FROM dbms_stats.relation_stats_backup;
+SELECT dbms_stats.backup(1, NULL::regclass, NULL);
+SELECT relid::regclass FROM dbms_stats.relation_stats_backup
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, staattnum FROM dbms_stats.column_stats_backup
+ GROUP BY starelid, staattnum
+ ORDER BY starelid, staattnum;
+
+-- No.7-1-17
+DELETE FROM dbms_stats.relation_stats_backup;
+\! psql contrib_regression -c "SELECT dbms_stats.backup(NULL, 's0.st0'::regclass, NULL)" > results/ut_no2_1_17.out 2>&1
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+
+/*
+ * No.8-1 dbms_stats.backup
+ */
+SELECT setval('dbms_stats.backup_history_id_seq',1, false);
+/*
+ * Stab function dbms_stats.backup
+ */
+ALTER FUNCTION dbms_stats.backup(
+ backup_id int8,
+ relid regclass,
+ attnum int2)
+ RENAME TO truth_func_backup;
+
+CREATE OR REPLACE FUNCTION dbms_stats.backup(
+ backup_id int8,
+ regclass,
+ attnum int2)
+RETURNS int8 AS
+$$
+BEGIN
+ RAISE NOTICE 'arguments are %, %, %', $1, $2, $3;
+ RETURN 1;
+END;
+$$
+LANGUAGE plpgsql;
+
+-- No.8-1-1
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup('s0.st0'::regclass, 'id', 'dummy comment');
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+
+-- No.8-1-2
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup('s0.st0'::regclass, NULL, 'dummy comment');
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+
+-- No.8-1-3
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup(NULL::regclass, 'id', 'dummy comment');
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+
+-- No.8-1-4
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup(NULL::regclass, NULL, 'dummy comment');
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+
+-- No.8-1-5
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup(0, NULL, 'dummy comment');
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+
+-- No.8-1-6
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup('s0.st0'::regclass, NULL, 'dummy comment');
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+
+-- No.8-1-7
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup(
+ 'pg_toast.pg_toast_2618'::regclass,
+ NULL,
+ 'dummy comment');
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+
+-- No.8-1-8
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup('s0.st0_idx'::regclass, NULL, 'dummy comment');
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+
+-- No.8-1-9
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup('s0.ss0'::regclass, NULL, 'dummy comment');
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+
+-- No.8-1-10
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup('s0.sc0'::regclass, NULL, 'dummy comment');
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+
+-- No.8-1-11
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup('s0.sft0'::regclass, NULL, 'dummy comment');
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+
+-- No.8-1-12
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup('pg_catalog.pg_class'::regclass, NULL, 'dummy comment');
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+
+-- No.8-1-13
+DELETE FROM dbms_stats.backup_history;
+SELECT dbms_stats.backup('s0.st0'::regclass, 'dummy', 'dummy comment');
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+
+-- No.8-1-14
+DELETE FROM dbms_stats.backup_history;
+DELETE FROM pg_statistic
+ WHERE starelid = 's0.st0'::regclass
+ AND staattnum = 1::int2;
+SELECT count(*) FROM dbms_stats.column_stats_effective
+ WHERE starelid = 's0.st0'::regclass
+ AND staattnum = 1::int2;
+SELECT dbms_stats.backup('s0.st0'::regclass, 'id', 'dummy comment');
+SELECT id, unit, comment FROM dbms_stats.backup_history;
+
+/*
+ * Stab function dbms_stats.backup
+ */
+ALTER FUNCTION dbms_stats.backup(
+ relid regclass,
+ attname text,
+ comment text)
+ RENAME TO truth_func_backup;
+CREATE OR REPLACE FUNCTION dbms_stats.backup(
+ relid regclass DEFAULT NULL,
+ attname text DEFAULT NULL,
+ comment text DEFAULT NULL)
+RETURNS int8 AS
+$$
+BEGIN
+ IF $3 = '<NULL>' THEN
+ RAISE NOTICE 'third argument is not NULL but string "<NULL>"';
+ END IF;
+ RAISE NOTICE 'arguments are %, %, %', $1, $2, $3;
+ RETURN 1;
+END;
+$$
+LANGUAGE plpgsql;
+
+/*
+ * No.8-3 dbms_stats.backup_schema_stats
+ */
+SELECT setval('dbms_stats.backup_history_id_seq',9, false);
+-- No.8-3-1
+SELECT dbms_stats.backup_schema_stats('s0', 'comment');
+SELECT id, unit, comment FROM dbms_stats.backup_history
+ ORDER BY id DESC
+ LIMIT 1;
+-- No.8-3-2
+SELECT dbms_stats.backup_schema_stats('s00', 'comment');
+SELECT id, unit, comment FROM dbms_stats.backup_history
+ ORDER BY id DESC
+ LIMIT 1;
+-- No.8-3-3
+SELECT dbms_stats.backup_schema_stats('pg_catalog', 'comment');
+SELECT id, unit, comment FROM dbms_stats.backup_history
+ ORDER BY id DESC
+ LIMIT 1;
+
+/*
+ * Delete stab function dbms_stats.backup
+ */
+DROP FUNCTION dbms_stats.backup(
+ backup_id int8,
+ regclass,
+ attnum int2);
+ALTER FUNCTION dbms_stats.truth_func_backup(
+ backup_id int8,
+ regclass,
+ attnum int2)
+ RENAME TO backup;
+DROP FUNCTION dbms_stats.backup(
+ regclass,
+ attname text,
+ comment text);
+ALTER FUNCTION dbms_stats.truth_func_backup(
+ regclass,
+ attname text,
+ comment text)
+ RENAME TO backup;
+VACUUM ANALYZE;
+
+/*
+ * create backup statistics state A
+ */
+DELETE FROM dbms_stats.backup_history;
+
+INSERT INTO dbms_stats.backup_history(id, time, unit)
+ VALUES (1, '2012-02-29 23:59:56.999999', 'd');
+
+SELECT setval('dbms_stats.backup_history_id_seq',1);
+SELECT dbms_stats.backup();
+UPDATE dbms_stats.backup_history
+ SET time = '2012-02-29 23:59:57'
+ WHERE id = 2;
+SELECT dbms_stats.backup('s0.st0');
+UPDATE dbms_stats.backup_history
+ SET time = '2012-02-29 23:59:57.000001'
+ WHERE id = 3;
+SELECT dbms_stats.backup();
+UPDATE dbms_stats.backup_history
+ SET time = '2012-02-29 23:59:58'
+ WHERE id = 4;
+DELETE FROM dbms_stats.relation_stats_backup
+ WHERE id = 4;
+SELECT dbms_stats.backup('s0.st0', 'id');
+UPDATE dbms_stats.backup_history
+ SET time = '2012-03-01 00:00:00'
+ WHERE id = 5;
+SELECT dbms_stats.backup('s0.st0');
+UPDATE dbms_stats.backup_history
+ SET time = '2012-03-01 00:00:02'
+ WHERE id = 6;
+SELECT dbms_stats.backup('public.st0');
+UPDATE dbms_stats.backup_history
+ SET time = '2012-03-01 00:00:04'
+ WHERE id = 7;
+INSERT INTO dbms_stats.backup_history(time, unit)
+ VALUES ('2012-03-01 00:00:06', 's');
+SELECT dbms_stats.backup(8, c.oid, NULL)
+ FROM pg_catalog.pg_class c,
+ pg_catalog.pg_namespace n
+ WHERE n.nspname = 's0'
+ AND c.relnamespace = n.oid
+ AND c.relkind IN ('r', 'i');
+
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+SELECT * FROM relations_backup_v;
+SELECT * FROM columns_backup_v;
+
+VACUUM ANALYZE;
+
+/*
+ * No.9-1 dbms_stats.restore
+ */
+-- No.9-1-1
+DELETE FROM dbms_stats._relation_stats_locked;
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+SELECT dbms_stats.restore(2, 's0.st0', NULL);
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+COMMIT;
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+
+-- No.9-1-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, 'st0', NULL);
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+
+-- No.9-1-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, 's00.s0', NULL);
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+
+-- No.9-1-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(NULL, 's0.st0', NULL);
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+
+-- No.9-1-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, 's0.st0', 'id');
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+
+-- No.9-1-6
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, NULL, 'id');
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+
+-- No.9-1-7
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, 's0.st0', NULL);
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+
+-- No.9-1-8
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, NULL, NULL);
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+
+-- No.9-1-9
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(0, 's0.st0', NULL);
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+
+-- No.9-1-10
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, 0, 'id');
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+
+-- No.9-1-11
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(1, 's0.st0', NULL);
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+
+-- No.9-1-12
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, 's0.st0', 'dummy');
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+
+-- No.9-1-13
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(1, 's0.st0', 'id');
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+
+-- No.9-1-15
+DELETE FROM dbms_stats._relation_stats_locked;
+ALTER TABLE s1.st0 DROP COLUMN id;
+SELECT dbms_stats.restore(2, 's1.st0', 'id');
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+
+-- No.9-1-14
+DELETE FROM dbms_stats._relation_stats_locked;
+\set s1_st0_oid `psql contrib_regression -tA -c "SELECT c.oid FROM pg_class c, pg_namespace n WHERE c.relnamespace = n.oid AND n.nspname = 's1' AND c.relname = 'st0';"`
+DROP TABLE s1.st0;
+SET client_min_messages TO FATAL;
+SELECT dbms_stats.restore(2, :s1_st0_oid, NULL);
+RESET client_min_messages;
+\! tail ${PGDATA}/pg_log/postgresql.log > results/ut_no3_1_14.out
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+CREATE TABLE s1.st0(id integer, num integer);
+INSERT INTO s1.st0 VALUES (1, 15), (2, 25), (3, 35), (4, 45);
+VACUUM ANALYZE;
+-- No.9-1-16
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, 's0.st0', NULL);
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+
+-- No.9-1-17
+DELETE FROM dbms_stats._relation_stats_locked;
+INSERT INTO dbms_stats.relation_stats_backup(
+ id, relid, relname, relpages, reltuples,
+ relallvisible,
+ curpages)
+ VALUES (2,
+ 'pg_toast.pg_toast_2618'::regclass,
+ 'pg_toast.pg_toast_2618', 1, 1,
+ 1,
+ 1);
+SELECT * FROM relations_backup_v
+ WHERE id = 2
+ AND relname = 'pg_toast.pg_toast_2618';
+SELECT dbms_stats.restore(2, 'pg_toast.pg_toast_2618', NULL);
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+DELETE FROM dbms_stats.relation_stats_backup
+ WHERE id = 2
+ AND relname = 'pg_toast.pg_toast_2618';
+
+-- No.9-1-18
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore(2, 's0.st0_idx', NULL);
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+
+-- No.9-1-19
+DELETE FROM dbms_stats._relation_stats_locked;
+INSERT INTO dbms_stats.relation_stats_backup(
+ id, relid, relname, relpages, reltuples,
+ relallvisible,
+ curpages)
+ VALUES (2, 's0.ss0'::regclass, 's0.ss0', 1, 1,
+ 1,
+ 1);
+SELECT * FROM relations_backup_v
+ WHERE id = 2
+ AND relname = 's0.ss0';
+SELECT dbms_stats.restore(2, 's0.ss0', NULL);
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+DELETE FROM dbms_stats.relation_stats_backup
+ WHERE id = 2
+ AND relname = 's0.ss0';
+
+-- No.9-1-20
+DELETE FROM dbms_stats._relation_stats_locked;
+INSERT INTO dbms_stats.relation_stats_backup(
+ id, relid, relname, relpages, reltuples,
+ relallvisible,
+ curpages)
+ VALUES (2, 's0.sc0'::regclass, 's0.sc0', 1, 1,
+ 1,
+ 1);
+SELECT * FROM relations_backup_v
+ WHERE id = 2
+ AND relname = 's0.sc0';
+SELECT dbms_stats.restore(2, 's0.sc0', NULL);
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+DELETE FROM dbms_stats.relation_stats_backup
+ WHERE id = 2
+ AND relname = 's0.sc0';
+
+-- No.9-1-21
+DELETE FROM dbms_stats._relation_stats_locked;
+INSERT INTO dbms_stats.relation_stats_backup(
+ id, relid, relname, relpages, reltuples,
+ relallvisible,
+ curpages)
+ VALUES (3, 's0.sft0'::regclass, 's0.sft0', 1, 1,
+ 1,
+ 1);
+SELECT * FROM relations_backup_v
+ WHERE id = 3
+ AND relname = 's0.sft0';
+SELECT dbms_stats.restore(2, 's0.sft0', NULL);
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+DELETE FROM dbms_stats.relation_stats_backup
+ WHERE id = 3
+ AND relname = 's0.sft0';
+
+-- No.9-1-22
+DELETE FROM dbms_stats._relation_stats_locked;
+INSERT INTO dbms_stats.relation_stats_backup(
+ id, relid, relname, relpages, reltuples,
+ relallvisible,
+ curpages)
+ VALUES (2, 'pg_catalog.pg_class'::regclass, 'pg_catalog.pg_class', 1, 1,
+ 1,
+ 1);
+SELECT * FROM relations_backup_v
+ WHERE id = 2
+ AND relname = 'pg_catalog.pg_class';
+SELECT dbms_stats.restore(2, 'pg_catalog.pg_class', NULL);
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+SELECT count(*) FROM dbms_stats.relation_stats_locked;
+DELETE FROM dbms_stats.relation_stats_backup
+ WHERE id = 2
+ AND relname = 'pg_catalog.pg_class';
+
+-- No.9-1-23
+DELETE FROM dbms_stats._relation_stats_locked;
+INSERT INTO dbms_stats._relation_stats_locked(relid, relname)
+ VALUES ('s0.st0'::regclass, 's0.st0');
+INSERT INTO dbms_stats._column_stats_locked(starelid, staattnum, stainherit)
+ SELECT starelid::regclass, staattnum, stainherit
+ FROM dbms_stats.column_stats_effective
+ WHERE starelid = 's0.st0'::regclass;
+SELECT id, unit, comment FROM dbms_stats.backup_history
+ WHERE id = 2;
+SELECT * FROM columns_locked_v;
+SELECT * FROM relations_locked_v;
+SELECT dbms_stats.restore(2, 's0.st0', NULL);
+SELECT * FROM relations_locked_v;
+SELECT * FROM columns_locked_v;
+
+-- No.9-1-24
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT id, unit, comment FROM dbms_stats.backup_history
+ WHERE id = 2;
+SELECT dbms_stats.restore(2, 's0.st0', NULL);
+SELECT * FROM relations_locked_v;
+SELECT * FROM columns_locked_v;
+
+/*
+ * Stab function dbms_stats.restore
+ */
+CREATE OR REPLACE FUNCTION dbms_stats.restore(
+ backup_id int8,
+ relid regclass DEFAULT NULL,
+ attname text DEFAULT NULL)
+RETURNS SETOF regclass AS
+$$
+BEGIN
+ RAISE NOTICE 'arguments are "%, %, %"', $1, $2, $3;
+ RETURN QUERY
+ SELECT c.oid::regclass
+ FROM pg_class c, dbms_stats.relation_stats_backup b
+ WHERE (c.oid = $2 OR $2 IS NULL)
+ AND c.oid = b.relid
+ AND c.relkind IN ('r', 'i')
+ AND (b.id <= $1 OR $1 IS NOT NULL)
+ GROUP BY c.oid
+ ORDER BY c.oid::regclass::text;
+END;
+$$
+LANGUAGE plpgsql;
+
+/*
+ * No.10-1 dbms_stats.restore_database_stats
+ */
+-- No.10-1-1
+SELECT dbms_stats.restore_database_stats('2012-02-29 23:59:57');
+-- No.10-1-2
+SELECT dbms_stats.restore_database_stats('2012-02-29 23:59:57.000002');
+-- No.10-1-3
+SELECT dbms_stats.restore_database_stats('2012-01-01 00:00:00');
+--#No.10-1-4 is skipped after lock tests
+--#No.10-1-5 is skipped after lock tests
+-- No.10-1-6
+SELECT dbms_stats.restore_database_stats('2012-02-29 23:59:57');
+
+/*
+ * No.10-2 dbms_stats.restore_schema_stats
+ */
+-- No.10-2-1
+SELECT dbms_stats.restore_schema_stats('s0', '2012-02-29 23:59:57');
+-- No.10-2-2
+SELECT dbms_stats.restore_schema_stats('s0', '2012-02-29 23:59:57.000002');
+-- No.10-2-3
+SELECT dbms_stats.restore_schema_stats('s0', '2012-01-01 00:00:00');
+--#No.10-2-4 is skipped after lock tests
+--#No.10-2-5 is skipped after lock tests
+-- No.10-2-6
+SELECT dbms_stats.restore_schema_stats('s0', '2012-02-29 23:59:57');
+-- No.10-2-7
+SELECT dbms_stats.restore_schema_stats('s0', '2012-02-29 23:59:57');
+--#No.10-2-8 is skipped after lock tests
+-- No.10-2-9
+SELECT dbms_stats.restore_schema_stats('s00', '2012-02-29 23:59:57');
+-- No.10-2-10
+SELECT dbms_stats.restore_schema_stats('pg_catalog', '2012-02-29 23:59:57');
+
+/*
+ * No.10-7 dbms_stats.restore_stats
+ */
+-- No.10-7-1
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore_stats(NULL);
+
+-- No.10-7-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.restore_stats(0);
+
+-- No.10-7-3
+DELETE FROM dbms_stats._relation_stats_locked;
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+SELECT dbms_stats.restore_stats(2);
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+COMMIT;
+SELECT relid::regclass FROM dbms_stats.relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+
+-- No.10-7-4
+DELETE FROM dbms_stats._relation_stats_locked;
+INSERT INTO dbms_stats._relation_stats_locked(relid, relname)
+ SELECT relid::regclass, relname
+ FROM dbms_stats.relation_stats_effective;
+INSERT INTO dbms_stats._column_stats_locked(starelid, staattnum, stainherit)
+ SELECT starelid::regclass, staattnum, stainherit
+ FROM dbms_stats.column_stats_effective;
+SELECT id, unit, comment FROM dbms_stats.backup_history
+ WHERE id = 8;
+SELECT * FROM columns_locked_v;
+SELECT * FROM relations_locked_v;
+SELECT dbms_stats.restore_stats(8);
+SELECT * FROM relations_locked_v;
+SELECT * FROM columns_locked_v;
+
+-- No.10-7-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT id, unit, comment FROM dbms_stats.backup_history
+ WHERE id = 8;
+SELECT dbms_stats.restore_stats(8);
+SELECT * FROM relations_locked_v;
+SELECT * FROM columns_locked_v;
+
+/*
+ * No.11-1 dbms_stats.lock(relid, attname)
+ */
+-- No.11-1-1
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock(NULL, NULL);
+-- No.11-1-2
+ALTER FUNCTION dbms_stats.lock(relid regclass)
+ RENAME TO truth_lock;
+CREATE FUNCTION dbms_stats.lock(relid regclass)
+RETURNS regclass AS
+$$
+BEGIN
+ RAISE NOTICE 'arguments are %', $1;
+ RETURN $1;
+END
+$$
+LANGUAGE plpgsql;
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.st0', NULL);
+DROP FUNCTION dbms_stats.lock(relid regclass);
+ALTER FUNCTION dbms_stats.truth_lock(relid regclass)
+ RENAME TO lock;
+-- No.11-1-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock(NULL, 'id');
+-- No.11-1-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.st0', 'id');
+SELECT * FROM relations_locked_v;
+SELECT * FROM columns_locked_v c;
+-- No.11-1-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock(0, 'id');
+-- No.11-1-6
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.st0', 'id');
+SELECT * FROM relations_locked_v;
+SELECT * FROM columns_locked_v c;
+-- No.11-1-7
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('pg_toast.pg_toast_2618', 'id');
+-- No.11-1-8
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.st0_idx', 'id');
+-- No.11-1-9
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('st1_exp', 'lower');
+SELECT * FROM relations_locked_v;
+SELECT * FROM columns_locked_v c;
+DELETE FROM dbms_stats._relation_stats_locked;
+
+-- No.11-1-10
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.ss0', 'id');
+-- No.11-1-11
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.sc0', 'id');
+-- No.11-1-12
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.sft0', 'id');
+-- No.11-1-13
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('pg_catalog.pg_class', 'id');
+-- No.11-1-14
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.st0', 'dummy');
+-- No.11-1-15
+DELETE FROM dbms_stats._relation_stats_locked;
+DELETE FROM pg_statistic
+ WHERE starelid = 's0.st0'::regclass;
+SELECT dbms_stats.lock('s0.st0', 'id');
+VACUUM ANALYZE;
+-- No.11-1-16
+DELETE FROM dbms_stats._relation_stats_locked;
+INSERT INTO dbms_stats._relation_stats_locked(
+ relid, relname, relpages, reltuples,
+ relallvisible,
+ curpages)
+ VALUES('s0.st0'::regclass, 's0.st0', 1, 1640,
+ 1,
+ 1);
+SELECT dbms_stats.lock_column_stats('s0.st0','id');
+UPDATE dbms_stats._column_stats_locked
+ SET (stanullfrac, stawidth, stadistinct,
+ stakind1, stakind2, stakind3, stakind4,
+ stakind5,
+ staop1, staop2, staop3, staop4,
+ staop5,
+ stanumbers1, stanumbers2, stanumbers3, stanumbers4,
+ stanumbers5,
+ stavalues1, stavalues2, stavalues3, stavalues4
+ ,stavalues5
+ ) = (
+ NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL,
+ NULL, NULL, NULL, NULL)
+ WHERE starelid = 's0.st0'::regclass;
+SELECT dbms_stats.lock('s0.st0', 'id');
+SELECT * FROM relations_locked_v;
+SELECT * FROM columns_locked_v c;
+-- No.11-1-17
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.st0', 'id');
+SELECT * FROM relations_locked_v
+ WHERE relid = 's0.st0'::regclass;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+
+/*
+ * No.11-2 dbms_stats.lock(relid)
+ */
+-- No.11-2-1
+DELETE FROM dbms_stats._relation_stats_locked;
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+SELECT dbms_stats.lock('s0.st0');
+SELECT * FROM relations_locked_v;
+SELECT * FROM columns_locked_v c;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+COMMIT;
+
+-- No.11-2-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock(NULL);
+-- No.11-2-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('0');
+-- No.11-2-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.st0');
+SELECT * FROM relations_locked_v;
+SELECT * FROM columns_locked_v c;
+-- No.11-2-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('pg_toast.pg_toast_2618');
+-- No.11-2-6
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.st0_idx');
+SELECT * FROM relations_locked_v;
+SELECT * FROM columns_locked_v c;
+-- No.11-2-7
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.ss0');
+-- No.11-2-8
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.sc0');
+-- No.11-2-9
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.sft0');
+-- No.11-2-10
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('pg_catalog.pg_class');
+-- No.11-2-11
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_table_stats('s0.st0');
+UPDATE dbms_stats._relation_stats_locked
+ SET (relpages, reltuples,
+ relallvisible,
+ curpages)
+ = (NULL, NULL, NULL
+ ,NULL
+ )
+ WHERE relid = 's0.st0'::regclass;
+SELECT dbms_stats.lock('s0.st0');
+SELECT * FROM relations_locked_v;
+SELECT * FROM columns_locked_v c;
+-- No.11-2-12
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock('s0.st0');
+SELECT * FROM relations_locked_v;
+SELECT * FROM columns_locked_v c;
+
+/*
+ * Stab function dbms_stats.lock
+ */
+ALTER FUNCTION dbms_stats.lock(relid regclass)
+ RENAME TO truth_lock;
+CREATE FUNCTION dbms_stats.lock(relid regclass)
+RETURNS regclass AS
+$$
+BEGIN
+ RAISE NOTICE 'arguments are %', $1;
+ RETURN $1;
+END
+$$
+LANGUAGE plpgsql;
+
+ALTER FUNCTION dbms_stats.lock(relid regclass, attname text)
+ RENAME TO truth_lock;
+CREATE FUNCTION dbms_stats.lock(
+ relid regclass,
+ attname text)
+RETURNS regclass AS
+$$
+BEGIN
+ RAISE NOTICE 'arguments are %, %', $1, $2;
+ RETURN $1;
+END
+$$
+LANGUAGE plpgsql;
+
+/*
+ * No.12-1 dbms_stats.lock_database_stats
+ */
+-- No.12-1-1
+SELECT dbms_stats.lock_database_stats();
+
+/*
+ * No.12-2 dbms_stats.lock_schema_stats
+ */
+-- No.12-2-1
+SELECT dbms_stats.lock_schema_stats('s0');
+-- No.12-2-2
+SELECT dbms_stats.lock_schema_stats('s00');
+-- No.12-2-3
+SELECT dbms_stats.lock_schema_stats('pg_catalog');
+
+/*
+ * No.12-3 dbms_stats.lock_table_stats(regclass)
+ */
+-- No.12-3-1
+SELECT dbms_stats.lock_table_stats('s0.st0');
+-- No.12-3-2
+SELECT dbms_stats.lock_table_stats('st0');
+-- No.12-3-3
+SELECT dbms_stats.lock_table_stats('s00.s0');
+
+/*
+ * No.12-4 dbms_stats.lock_table_stats(schemaname, tablename)
+ */
+-- No.12-4-1
+SELECT dbms_stats.lock_table_stats('s0', 'st0');
+
+/*
+ * No.12-5 dbms_stats.lock_column_stats(regclass, attname)
+ */
+-- No.12-5-1
+SELECT dbms_stats.lock_column_stats('s0.st0', 'id');
+-- No.12-5-2
+SELECT dbms_stats.lock_column_stats('st0', 'id');
+-- No.12-5-3
+SELECT dbms_stats.lock_column_stats('s00.s0', 'id');
+
+/*
+ * No.12-6 dbms_stats.lock_column_stats(schemaname, tablename, int2)
+ */
+-- No.12-6-1
+SELECT dbms_stats.lock_column_stats('s0', 'st0', 'id');
+
+/*
+ * Delete Stab function lock
+ */
+DROP FUNCTION dbms_stats.lock(relid regclass);
+ALTER FUNCTION dbms_stats.truth_lock(relid regclass)
+ RENAME TO lock;
+DROP FUNCTION dbms_stats.lock(relid regclass, attname text);
+ALTER FUNCTION dbms_stats.truth_lock(relid regclass, attname text)
+ RENAME TO lock;
+
+/*
+ * No.13-1 dbms_stats.unlock
+ */
+-- No.13-1-1
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+SELECT dbms_stats.unlock();
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+
+-- No.13-1-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT dbms_stats.unlock();
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+
+-- No.13-1-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+DELETE FROM dbms_stats._column_stats_locked;
+SELECT dbms_stats.unlock();
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+
+-- No.13-1-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.unlock();
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+
+-- No.13-1-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock('s0.st0');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.13-1-6
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock('st0');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.13-1-7
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+SELECT dbms_stats.unlock('s00.s0');
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+
+-- No.13-1-8
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT dbms_stats.unlock('s0.st0', 'id');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+
+-- No.13-1-9
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT dbms_stats.unlock('s0.st0', 'dummy');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+
+-- No.13-1-10
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+DELETE FROM dbms_stats._column_stats_locked;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT dbms_stats.unlock('s0.st0', 'id');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, staattnum FROM dbms_stats._column_stats_locked
+ GROUP BY starelid, staattnum
+ ORDER BY starelid;
+
+-- No.13-1-11
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, staattnum FROM dbms_stats._column_stats_locked
+ GROUP BY starelid, staattnum
+ ORDER BY starelid;
+SELECT dbms_stats.unlock(NULL, 'id');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, staattnum FROM dbms_stats._column_stats_locked
+ GROUP BY starelid, staattnum
+ ORDER BY starelid;
+
+-- No.13-1-12
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, staattnum FROM dbms_stats._column_stats_locked
+ GROUP BY starelid, staattnum
+ ORDER BY starelid;
+SELECT dbms_stats.unlock('s0.st0', NULL);
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, staattnum FROM dbms_stats._column_stats_locked
+ GROUP BY starelid, staattnum
+ ORDER BY starelid;
+
+-- No.13-1-13
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+SELECT dbms_stats.unlock();
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+COMMIT;
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+
+/*
+ * No.14-1 dbms_stats.unlock_database_stats
+ */
+-- No.14-1-1
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+SELECT dbms_stats.unlock_database_stats();
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+
+-- No.14-1-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+DELETE FROM dbms_stats._column_stats_locked;
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.unlock_database_stats();
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+
+-- No.14-1-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.unlock_database_stats();
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+
+-- No.14-1-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+SELECT dbms_stats.unlock_database_stats();
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+COMMIT;
+SELECT count(*) FROM dbms_stats._relation_stats_locked;
+SELECT count(*) FROM dbms_stats._column_stats_locked;
+
+/*
+ * No.14-2 dbms_stats.unlock_schema_stats
+ */
+-- No.14-2-1
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_schema_stats('s0');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+
+-- No.14-2-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+DELETE FROM dbms_stats._column_stats_locked;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_schema_stats('s0');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.14-2-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_schema_stats('s0');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.14-2-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_schema_stats('s0');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.14-2-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_schema_stats('s00');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.14-2-6
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_schema_stats('pg_catalog');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.14-2-7
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_schema_stats(NULL);
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.14-2-8
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+SELECT dbms_stats.unlock_schema_stats('s0');
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+COMMIT;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+/*
+ * No.14-3 dbms_stats.unlock_table_stats(regclass)
+ */
+-- No.14-3-1
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_table_stats('s0.st0');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+
+-- No.14-3-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+DELETE FROM dbms_stats._column_stats_locked;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_table_stats('s0.st0');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.14-3-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_table_stats('s0.st0');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.14-3-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_table_stats('s0.st0');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.14-3-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_table_stats('st0');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.14-3-6
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_table_stats('s00.s0');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.14-3-7
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_table_stats(NULL);
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.14-3-8
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+SELECT dbms_stats.unlock_table_stats('s0.st0');
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+COMMIT;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+/*
+ * No.14-4 dbms_stats.unlock_table_stats(schemaname, tablename)
+ */
+-- No.14-4-1
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_table_stats('s0','st0');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+
+-- No.14-4-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+DELETE FROM dbms_stats._column_stats_locked;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_table_stats('s0', 'st0');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.14-4-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_table_stats('s0', 'st0');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.14-4-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_table_stats('s0', 'st0');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.14-4-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_table_stats('s00', 's0');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.14-4-6
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_table_stats(NULL, 'st0');
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.14-4-7
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+SELECT dbms_stats.unlock_table_stats('s0', NULL);
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+-- No.14-4-8
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+SELECT dbms_stats.unlock_table_stats('s0', 'st0');
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+COMMIT;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, count(*) FROM dbms_stats._column_stats_locked
+ GROUP BY starelid
+ ORDER BY starelid;
+
+/*
+ * No.14-5 dbms_stats.unlock_column_stats(regclass, attname)
+ */
+-- No.14-5-1
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT dbms_stats.unlock_column_stats('s0.st0', 'id');
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+
+-- No.14-5-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+DELETE FROM dbms_stats._column_stats_locked;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT dbms_stats.unlock_column_stats('s0.st0', 'id');
+SELECT count(*) FROM dbms_stats.column_stats_locked;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+
+-- No.14-5-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT dbms_stats.unlock_column_stats('s0.st0', 'id');
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+
+-- No.14-5-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT dbms_stats.unlock_column_stats('st0', 'id');
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+
+-- No.14-5-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT dbms_stats.unlock_column_stats('s0.st0', 'dummy');
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+
+-- No.14-5-6
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT dbms_stats.unlock_column_stats('s00.s0', 'id');
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+
+-- No.14-5-7
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT dbms_stats.unlock_column_stats(NULL, 'id');
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+
+-- No.14-5-8
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT dbms_stats.unlock_column_stats('s0.st0', NULL);
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+
+-- No.14-5-9
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+SELECT dbms_stats.unlock_column_stats('s0.st0', 'id');
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+COMMIT;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+
+/*
+ * No.14-6 dbms_stats.unlock_column_stats(schemaname, tablename, attname)
+ */
+-- No.14-6-1
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT dbms_stats.unlock_column_stats('s0', 'st0', 'id');
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+
+-- No.14-6-2
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+DELETE FROM dbms_stats._column_stats_locked;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT dbms_stats.unlock_column_stats('s0', 'st0', 'id');
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+
+-- No.14-6-3
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT dbms_stats.unlock_column_stats('s0', 'st0', 'id');
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+
+-- No.14-6-4
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT dbms_stats.unlock_column_stats('s0', 'st0', 'dummy');
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+
+-- No.14-6-5
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT dbms_stats.unlock_column_stats(NULL, 'st0', 'id');
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+
+-- No.14-6-6
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT dbms_stats.unlock_column_stats('s0', NULL, 'id');
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+
+-- No.14-6-7
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT dbms_stats.unlock_column_stats('s0', 'st0', NULL);
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+
+-- No.14-6-8
+DELETE FROM dbms_stats._relation_stats_locked;
+SELECT dbms_stats.lock_database_stats();
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+SELECT dbms_stats.unlock_column_stats('s0', 'st0', 'id');
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+COMMIT;
+SELECT starelid, attname, stainherit FROM columns_locked_v c;
+SELECT relid::regclass FROM dbms_stats._relation_stats_locked
+ GROUP BY relid
+ ORDER BY relid;
--- /dev/null
+\pset null '(null)'
+LOAD 'pg_dbms_stats';
+/*
+ * No.2-3 dbms_stats.backup_history_id_seq
+ */
+-- No.2-3-1
+SELECT setval('dbms_stats.backup_history_id_seq', 0, false);
+-- No.2-3-2
+SELECT setval('dbms_stats.backup_history_id_seq', 1, false);
+INSERT INTO dbms_stats.backup_history(time, unit)
+ VALUES ('2011-01-01', 't');
+SELECT id, time, unit FROM dbms_stats.backup_history
+ ORDER BY id;
+-- No.2-3-3
+INSERT INTO dbms_stats.backup_history(time, unit)
+ VALUES ('2011-01-02', 'c'), ('2011-01-03', 'd');
+SELECT id, time, unit FROM dbms_stats.backup_history
+ ORDER BY id;
+-- clean up
+SELECT setval('dbms_stats.backup_history_id_seq', 1, false);
+DELETE FROM dbms_stats.backup_history;
+
+/*
+ * No.3-1 dbms_stats.use_locked_stats
+ */
+DELETE FROM dbms_stats._relation_stats_locked;
+EXPLAIN (costs false) SELECT * FROM s0.st2 WHERE id < 1;
+SELECT dbms_stats.lock_table_stats('s0.st2'::regclass);
+UPDATE dbms_stats._relation_stats_locked SET curpages = 10000;
+-- No.3-1-1
+SET pg_dbms_stats.use_locked_stats TO on;
+EXPLAIN (costs false) SELECT * FROM s0.st2 WHERE id < 1;
+-- No.3-1-2
+SET pg_dbms_stats.use_locked_stats TO off;
+EXPLAIN (costs false) SELECT * FROM s0.st2 WHERE id < 1;
+-- No.3-1-3
+\c - regular_user
+LOAD '$libdir/plugins/pg_dbms_stats';
+SHOW pg_dbms_stats.use_locked_stats;
+SET pg_dbms_stats.use_locked_stats TO OFF;
+SHOW pg_dbms_stats.use_locked_stats;
+EXPLAIN (costs false) SELECT * FROM s0.st2 WHERE id < 1;
+RESET pg_dbms_stats.use_locked_stats;
+EXPLAIN (costs false) SELECT * FROM s0.st2 WHERE id < 1;
+-- clean up
+\c - postgres
+LOAD 'pg_dbms_stats';
+DELETE FROM dbms_stats._relation_stats_locked;
+
+/*
+ * No.4-1 DATA TYPE dbms_stats.anyarray
+ */
+CREATE TABLE st3(id integer, name char(1000), num_arr char(5)[]);
+INSERT INTO st3 SELECT i, i , ARRAY[i::char, 'a'] FROM generate_series(1,10) g(i);
+ANALYZE st3;
+SELECT stavalues1 FROM pg_statistic
+ WHERE starelid = 'public.st3'::regclass;
+\copy (SELECT stavalues1::dbms_stats.anyarray FROM dbms_stats.column_stats_effective WHERE starelid = 'st3'::regclass) TO 'results/anyarray_test.cp' binary
+CREATE TABLE st4 (arr dbms_stats.anyarray);
+
+SELECT t.typname, n.nspname,
+ t.typlen, t.typbyval, t.typtype,
+ t.typcategory, t.typispreferred, t.typispreferred,
+ t.typdelim, t.typrelid, t.typmodin,
+ t.typmodout, t.typanalyze, t.typalign,
+ t.typstorage, t.typnotnull, t.typbasetype, t.typtypmod,
+ t.typndims, t.typcollation, t.typdefaultbin, t.typdefault
+ FROM pg_type t, pg_namespace n
+ WHERE t.typname = 'anyarray'
+ AND t.typnamespace = n.oid
+ ORDER BY t.typname;
+-- No.4-1-1
+INSERT INTO st4 VALUES(NULL);
+SELECT * FROM st4;
+-- No.4-1-2
+DELETE FROM st4;
+SELECT stavalues1::dbms_stats.anyarray
+ FROM dbms_stats.column_stats_effective
+ WHERE starelid = 'st3'::regclass
+ AND staattnum = 1;
+SELECT count(*) FROM st4;
+INSERT INTO st4
+ SELECT stavalues1::dbms_stats.anyarray
+ FROM dbms_stats.column_stats_effective
+ WHERE starelid = 'st3'::regclass
+ AND staattnum = 1;
+SELECT * FROM st4;
+-- No.4-1-3
+DELETE FROM st4;
+SELECT stavalues1::dbms_stats.anyarray
+ FROM dbms_stats.column_stats_effective
+ WHERE starelid = 'st3'::regclass
+ AND staattnum = 2;
+SELECT count(*) FROM st4;
+INSERT INTO st4
+ SELECT stavalues1::dbms_stats.anyarray
+ FROM dbms_stats.column_stats_effective
+ WHERE starelid = 'st3'::regclass
+ AND staattnum = 2;
+SELECT * FROM st4;
+-- No.4-1-4
+DELETE FROM st4;
+SELECT stavalues1::dbms_stats.anyarray
+ FROM dbms_stats.column_stats_effective
+ WHERE starelid = 'st3'::regclass
+ AND staattnum = 1;
+SELECT count(*) FROM st4;
+INSERT INTO st4
+ SELECT stavalues1::dbms_stats.anyarray
+ FROM dbms_stats.column_stats_effective
+ WHERE starelid = 'st3'::regclass
+ AND staattnum = 1;
+SELECT * FROM st4;
+-- No.4-1-5
+DELETE FROM st4;
+SELECT stavalues1::dbms_stats.anyarray
+ FROM dbms_stats.column_stats_effective
+ WHERE starelid = 'st3'::regclass
+ AND staattnum = 3;
+SELECT count(*) FROM st4;
+INSERT INTO st4
+ SELECT stavalues1::dbms_stats.anyarray
+ FROM dbms_stats.column_stats_effective
+ WHERE starelid = 'st3'::regclass
+ AND staattnum = 3;
+SELECT * FROM st4;
+-- No.4-1-6
+DELETE FROM st4;
+SELECT stavalues1::dbms_stats.anyarray
+ FROM dbms_stats.column_stats_effective
+ WHERE starelid = 'st3'::regclass;
+\copy st4(arr) FROM 'results/anyarray_test.cp' binary
+SELECT * FROM st4;
+-- clean up
+DROP TABLE st3;
+DROP TABLE st4;
+
+SELECT dbms_stats.unlock_database_stats();
+SELECT dbms_stats.lock_table_stats('st1');
+
+/*
+ * No.5-2 dbms_stats.invalidate_column_cache
+ */
+-- No.5-2-1
+SELECT dbms_stats.invalidate_column_cache();
+
+-- No.5-2-2
+/*
+ * Driver function dbms_stats.invalidate_cache1
+ */
+CREATE TRIGGER invalidate_cache1
+ AFTER INSERT OR DELETE OR UPDATE
+ ON pt0
+ FOR EACH ROW EXECUTE PROCEDURE dbms_stats.invalidate_column_cache();
+INSERT INTO pt0 VALUES (1,'2012/12/12');
+DROP TRIGGER invalidate_cache1 ON pt0;
+
+-- No.5-2-3
+/*
+ * Driver function dbms_stats.invalidate_cache2
+ */
+CREATE TRIGGER invalidate_cache2
+BEFORE INSERT OR DELETE OR UPDATE
+ ON pt0
+ FOR EACH STATEMENT EXECUTE PROCEDURE dbms_stats.invalidate_column_cache();
+INSERT INTO pt0 VALUES (1,'2012/12/12');
+DROP TRIGGER invalidate_cache2 ON pt0;
+
+-- No.5-2-4
+/*
+ * Driver function dbms_stats.invalidate_cache3
+ */
+CREATE TRIGGER invalidate_cache3
+BEFORE TRUNCATE
+ ON pt0
+ FOR EACH STATEMENT EXECUTE PROCEDURE dbms_stats.invalidate_column_cache();
+TRUNCATE TABLE pt0;
+DROP TRIGGER invalidate_cache3 ON pt0;
+
+-- No.5-2-5
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+INSERT INTO dbms_stats._relation_stats_locked (relid, relname) VALUES (0, 'dummy');
+INSERT INTO dbms_stats._column_stats_locked (starelid, staattnum, stainherit)
+ VALUES (0, 1, true);
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+
+-- No.5-2-6
+INSERT INTO dbms_stats._column_stats_locked (starelid, staattnum, stainherit)
+ VALUES ('st1_idx'::regclass, 1, true);
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+
+-- No.5-2-7
+INSERT INTO dbms_stats._column_stats_locked (starelid, staattnum, stainherit)
+ VALUES ('complex'::regclass, 1, true);
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+
+-- No.5-2-9
+UPDATE dbms_stats._column_stats_locked SET stanullfrac = 1
+ WHERE starelid = 'st1'::regclass
+ AND staattnum = 1
+ AND stainherit = false;
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+
+-- No.5-2-10
+DELETE FROM dbms_stats._column_stats_locked
+ WHERE starelid = 'st1'::regclass
+ AND staattnum = 1
+ AND stainherit = false;
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+
+-- No.5-2-8
+INSERT INTO dbms_stats._column_stats_locked
+ (starelid, staattnum, stainherit, stanullfrac)
+ VALUES ('st1'::regclass, 1, false, 1);
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+
+-- No.5-2-11
+PREPARE p2 AS SELECT str FROM st1 WHERE lower(str) IS NULL;
+EXPLAIN (costs false) SELECT str FROM st1 WHERE lower(str) IS NULL;
+EXPLAIN (costs false) EXECUTE p2;
+INSERT INTO dbms_stats._relation_stats_locked (relid, relname)
+ VALUES ('st1_exp'::regclass, 'dummy');
+INSERT INTO dbms_stats._column_stats_locked
+ (starelid, staattnum, stainherit, stanullfrac)
+ VALUES ('st1_exp'::regclass, 1, false, 1);
+EXPLAIN (costs false) SELECT str FROM st1 WHERE lower(str) IS NULL;
+EXPLAIN (costs false) EXECUTE p2;
+
+DEALLOCATE p2;
+
+SELECT dbms_stats.unlock_database_stats();
+
+
+/*
+ * No.5-3 dbms_stats.invalidate_relation_cache
+ */
+-- No.5-3-1
+SELECT dbms_stats.invalidate_relation_cache();
+
+-- No.5-3-2
+/*
+ * Driver function dbms_stats.invalidate_cache1
+ */
+CREATE TRIGGER invalidate_cache1
+ AFTER INSERT OR DELETE OR UPDATE
+ ON pt0
+ FOR EACH ROW EXECUTE PROCEDURE dbms_stats.invalidate_relation_cache();
+INSERT INTO pt0 VALUES (1,'2012/12/12');
+DROP TRIGGER invalidate_cache1 ON pt0;
+
+-- No.5-3-3
+/*
+ * Driver function dbms_stats.invalidate_cache2
+ */
+CREATE TRIGGER invalidate_cache2
+BEFORE INSERT OR DELETE OR UPDATE
+ ON pt0
+ FOR EACH STATEMENT EXECUTE PROCEDURE dbms_stats.invalidate_relation_cache();
+INSERT INTO pt0 VALUES (1,'2012/12/12');
+DROP TRIGGER invalidate_cache2 ON pt0;
+
+-- No.5-3-4
+/*
+ * Driver function dbms_stats.invalidate_cache3
+ */
+CREATE TRIGGER invalidate_cache3
+BEFORE TRUNCATE
+ ON pt0
+ FOR EACH STATEMENT EXECUTE PROCEDURE dbms_stats.invalidate_relation_cache();
+TRUNCATE TABLE pt0;
+DROP TRIGGER invalidate_cache3 ON pt0;
+
+-- No.5-3-5
+SELECT dbms_stats.unlock_database_stats();
+SELECT dbms_stats.lock_table_stats('st1');
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+INSERT INTO dbms_stats._relation_stats_locked (relid, relname) VALUES (0, 'dummy');
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+
+-- No.5-3-6
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+INSERT INTO dbms_stats._relation_stats_locked (relid, relname)
+ VALUES ('st1_idx'::regclass, 'st1_idx');
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+
+-- No.5-3-7
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+INSERT INTO dbms_stats._relation_stats_locked (relid, relname)
+ VALUES ('complex'::regclass, 'complex');
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+
+-- No.5-3-9
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+UPDATE dbms_stats._relation_stats_locked SET curpages = 1
+ WHERE relid = 'st1'::regclass;
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+
+-- No.5-3-10
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+DELETE FROM dbms_stats._relation_stats_locked
+ WHERE relid = 'st1'::regclass;
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+
+-- No.5-3-8
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+INSERT INTO dbms_stats._relation_stats_locked (relid, relname, curpages)
+ VALUES ('st1'::regclass, 'st1', 1);
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+
+-- No.5-3-11
+SELECT dbms_stats.unlock_database_stats();
+SELECT dbms_stats.lock_table_stats('st1');
+SELECT relname, curpages FROM dbms_stats.relation_stats_locked
+ WHERE relid = 'st1'::regclass;
+SELECT pg_sleep(0.5);
+SELECT pg_stat_reset();
+UPDATE dbms_stats._relation_stats_locked SET curpages = 1000
+ WHERE relid = 'st1_exp'::regclass;
+SELECT pg_sleep(0.5);
+SELECT * FROM lockd_io;
+SELECT relname, curpages FROM dbms_stats.relation_stats_locked
+ WHERE relid = 'st1'::regclass;
+SELECT pg_sleep(0.5);
+SELECT * FROM lockd_io;
+
+/*
+ * No.5-4 StatsCacheRelCallback
+ */
+-- No.5-4-1
+UPDATE dbms_stats._relation_stats_locked SET curpages = 1
+ WHERE relid = 'st1'::regclass;
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+\c
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+LOAD 'pg_dbms_stats';
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+
+SELECT dbms_stats.unlock_database_stats();
+SELECT dbms_stats.lock_table_stats('st1');
+-- No.5-4-3
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+\! psql contrib_regression -c "UPDATE dbms_stats._column_stats_locked SET stanullfrac = 1 WHERE starelid = 'st1'::regclass"
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+
+-- No.5-4-4
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+\! psql contrib_regression -c "DELETE FROM dbms_stats._column_stats_locked WHERE starelid = 'st1'::regclass"
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+
+-- No.5-4-2
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+\! psql contrib_regression -c "INSERT INTO dbms_stats._column_stats_locked (starelid, staattnum, stainherit, stanullfrac) VALUES ('st1'::regclass, 1, false, 1)"
+EXPLAIN (costs false) SELECT * FROM st1 WHERE val IS NULL;
+
+SELECT dbms_stats.unlock_database_stats();
+
+-- No.5-4-5
+CREATE TABLE s0.droptest(id integer);
+INSERT INTO s0.droptest VALUES (1),(2),(3);
+VACUUM ANALYZE;
+SELECT * FROM s0.droptest
+ WHERE id = 1;
+SELECT pg_sleep(0.5);
+SELECT pg_stat_reset();
+ALTER TABLE s0.droptest RENAME TO test;
+SELECT pg_sleep(0.5);
+SELECT * FROM lockd_io;
+SELECT * FROM s0.test
+ WHERE id = 1;
+SELECT pg_sleep(0.5);
+SELECT * FROM lockd_io;
+ALTER TABLE s0.test RENAME TO droptest;
+
+-- No.5-4-6
+SELECT * FROM s0.droptest
+ WHERE id = 1;
+SELECT pg_sleep(0.5);
+SELECT pg_stat_reset();
+ALTER TABLE s0.droptest RENAME id TO test;
+SELECT pg_sleep(0.5);
+SELECT * FROM lockd_io;
+SELECT * FROM s0.droptest
+ WHERE test = 1;
+SELECT pg_sleep(0.5);
+SELECT * FROM lockd_io;
+ALTER TABLE s0.droptest RENAME test TO id;
+
+-- No.5-4-8
+INSERT INTO s0.droptest VALUES (4);
+SELECT * FROM s0.droptest
+ WHERE id = 1;
+SELECT pg_sleep(0.5);
+SELECT pg_stat_reset();
+ANALYZE;
+SELECT pg_sleep(0.5);
+SELECT * FROM lockd_io;
+SELECT * FROM s0.droptest
+ WHERE id = 1;
+SELECT pg_sleep(1.0);
+SELECT * FROM lockd_io;
+
+-- No.5-4-9
+DELETE FROM s0.droptest;
+INSERT INTO s0.droptest VALUES (4),(5);
+SELECT * FROM s0.droptest
+ WHERE id = 4;
+SELECT pg_sleep(0.5);
+SELECT pg_stat_reset();
+VACUUM;
+SELECT pg_sleep(0.5);
+SELECT * FROM lockd_io;
+SELECT * FROM s0.droptest
+ WHERE id = 4;
+SELECT pg_sleep(0.5);
+SELECT * FROM lockd_io;
+
+-- clean up
+DROP TABLE s0.droptest;
+
+/*
+ * No.6-1 dbms_stats.relname
+ */
+-- No.6-1-1
+SELECT dbms_stats.relname('aaa', 'bbb');
+-- No.6-1-2
+SELECT dbms_stats.relname(NULL, 'bbb');
+-- No.6-1-3
+SELECT dbms_stats.relname('aaa', NULL);
+-- No.6-1-4
+SELECT dbms_stats.relname(NULL, NULL);
+-- No.6-1-5
+SELECT dbms_stats.relname('', '');
+-- No.6-1-6
+SELECT dbms_stats.relname('aAa', 'bBb');
+-- No.6-1-7
+SELECT dbms_stats.relname('a a', 'b b');
+-- No.6-1-8
+SELECT dbms_stats.relname('a.a', 'b.b');
+-- No.6-1-9
+SELECT dbms_stats.relname(E'a\na', E'b\nb');
+-- No.6-1-10
+SELECT dbms_stats.relname('a"a', 'b"b');
+-- No.6-1-11
+SELECT dbms_stats.relname('あいう', '亞伊卯');
+
+/*
+ * No.6-2 dbms_stats.is_system_schema
+ */
+-- No.6-2-1
+SELECT dbms_stats.is_system_schema('pg_catalog');
+-- No.6-2-2
+SELECT dbms_stats.is_system_schema('pg_toast');
+-- No.6-2-3
+SELECT dbms_stats.is_system_schema('information_schema');
+-- No.6-2-4
+SELECT dbms_stats.is_system_schema('dbms_stats');
+-- No.6-2-5
+SELECT dbms_stats.is_system_schema(NULL);
+-- No.6-2-6
+SELECT dbms_stats.is_system_schema('');
+-- No.6-2-7
+SELECT dbms_stats.is_system_schema('s0');
+-- No.6-2-8
+/*
+ * Driver function dbms_stats.is_system_schema1
+ */
+CREATE FUNCTION dbms_stats.is_system_schema1(schemaname text)
+ RETURNS integer AS
+ '$libdir/pg_dbms_stats', 'dbms_stats_is_system_schema'
+ LANGUAGE C IMMUTABLE STRICT;
+SELECT dbms_stats.is_system_schema1('s0');
+DROP FUNCTION dbms_stats.is_system_schema1(schemaname text);
+
+/*
+ * No.6-3 dbms_stats.is_system_catalog
+ */
+-- No.6-3-1
+SELECT dbms_stats.is_system_catalog('s0.st0');
+-- No.6-3-2
+SELECT dbms_stats.is_system_catalog('st0');
+-- No.6-3-3
+SELECT dbms_stats.is_system_catalog('s00.s0');
+-- No.6-3-4
+SELECT dbms_stats.is_system_catalog(NULL);
+-- No.6-3-5
+/*
+ * Driver function dbms_stats.is_system_catalog1
+ */
+CREATE FUNCTION dbms_stats.is_system_catalog1(relid regclass)
+RETURNS integer AS
+'$libdir/pg_dbms_stats', 'dbms_stats_is_system_catalog'
+LANGUAGE C STABLE;
+SELECT dbms_stats.is_system_catalog1('s0.st0');
+DROP FUNCTION dbms_stats.is_system_catalog1(relid regclass);
+
+
+/*
+ * No.6-4 dbms_stats.is_target_relkind
+ */
+-- No.6-4-1
+SELECT dbms_stats.is_target_relkind('r');
+-- No.6-4-2
+SELECT dbms_stats.is_target_relkind('i');
+-- No.6-4-3
+SELECT dbms_stats.is_target_relkind('S');
+-- No.6-4-4
+SELECT dbms_stats.is_target_relkind('v');
+-- No.6-4-5
+SELECT dbms_stats.is_target_relkind('c');
+-- No.6-4-6
+SELECT dbms_stats.is_target_relkind('t');
+-- No.6-4-7
+SELECT dbms_stats.is_target_relkind('a');
+-- No.6-4-8
+SELECT dbms_stats.is_target_relkind('');
+-- No.6-4-9
+SELECT dbms_stats.is_target_relkind(NULL);
+--#No.6-4-10 result varies according to a version
+
+/*
+ * No.7-1 dbms_stats.backup
+ */
+INSERT INTO dbms_stats.backup_history(id, time, unit) values(1, '2012-01-01', 'd');
+-- No.7-1-1
+DELETE FROM dbms_stats.relation_stats_backup;
+SELECT dbms_stats.backup(1, 's0.st0'::regclass, NULL);
+SELECT relid::regclass FROM dbms_stats.relation_stats_backup
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, staattnum FROM dbms_stats.column_stats_backup
+ GROUP BY starelid, staattnum
+ ORDER BY starelid, staattnum;
+
+-- No.7-1-2
+DELETE FROM dbms_stats.relation_stats_backup;
+SELECT dbms_stats.backup(1, 'st0'::regclass, NULL);
+SELECT relid::regclass FROM dbms_stats.relation_stats_backup
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, staattnum FROM dbms_stats.column_stats_backup
+ GROUP BY starelid, staattnum
+ ORDER BY starelid, staattnum;
+
+-- No.7-1-3
+DELETE FROM dbms_stats.relation_stats_backup;
+SELECT dbms_stats.backup(1, 'public.notfound'::regclass, NULL);
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+
+-- No.7-1-4
+DELETE FROM dbms_stats.relation_stats_backup;
+SELECT dbms_stats.backup(1, 's0.st0'::regclass, NULL);
+SELECT relid::regclass FROM dbms_stats.relation_stats_backup
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, staattnum FROM dbms_stats.column_stats_backup
+ GROUP BY starelid, staattnum
+ ORDER BY starelid, staattnum;
+
+-- No.7-1-5
+DELETE FROM dbms_stats.relation_stats_backup;
+SELECT dbms_stats.backup(1, 'pg_toast.pg_toast_2618'::regclass, NULL);
+SELECT relid::regclass FROM dbms_stats.relation_stats_backup
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, staattnum FROM dbms_stats.column_stats_backup
+ GROUP BY starelid, staattnum
+ ORDER BY starelid, staattnum;
+
+-- No.7-1-6
+DELETE FROM dbms_stats.relation_stats_backup;
+SELECT dbms_stats.backup(1, 's0.st0_idx'::regclass, NULL);
+SELECT relid::regclass FROM dbms_stats.relation_stats_backup
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, staattnum FROM dbms_stats.column_stats_backup
+ GROUP BY starelid, staattnum
+ ORDER BY starelid, staattnum;
+
+-- No.7-1-7
+DELETE FROM dbms_stats.relation_stats_backup;
+SELECT dbms_stats.backup(1, 's0.ss0'::regclass, NULL);
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+
+-- No.7-1-8
+DELETE FROM dbms_stats.relation_stats_backup;
+SELECT dbms_stats.backup(1, 's0.sc0'::regclass, NULL);
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+
+--#No.7-1-9 ut-<PG Version>
+
+-- No.7-1-10
+DELETE FROM dbms_stats.relation_stats_backup;
+SELECT dbms_stats.backup(1, 's0.st0'::regclass, 1::int2);
+SELECT relid::regclass FROM dbms_stats.relation_stats_backup
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, staattnum FROM dbms_stats.column_stats_backup
+ GROUP BY starelid, staattnum
+ ORDER BY starelid, staattnum;
+
+--#No.7-1-11 ut-<PG Version>
+
+-- No.7-1-12
+DELETE FROM dbms_stats.relation_stats_backup;
+SELECT dbms_stats.backup(1, 's0.st0'::regclass, NULL);
+SELECT relid::regclass FROM dbms_stats.relation_stats_backup
+ GROUP BY relid
+ ORDER BY relid;
+SELECT starelid::regclass, staattnum FROM dbms_stats.column_stats_backup
+ GROUP BY starelid, staattnum
+ ORDER BY starelid, staattnum;
+
+--#No.7-1-13 ut-<PG Version>
+
+-- No.7-1-14
+DELETE FROM dbms_stats.relation_stats_backup;
+SELECT dbms_stats.backup(1, 'pg_catalog.pg_class'::regclass, NULL);
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+
+-- No.7-1-15
+SELECT dbms_stats.backup(1, 's0.st0'::regclass, NULL);
+DELETE FROM dbms_stats.column_stats_backup;
+SELECT starelid::regclass, staattnum FROM dbms_stats.column_stats_backup
+ GROUP BY starelid, staattnum
+ ORDER BY starelid, staattnum;
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SET client_min_messages TO FATAL;
+SELECT dbms_stats.backup(1, 's0.st0'::regclass, NULL);
+RESET client_min_messages;
+\! tail ${PGDATA}/pg_log/postgresql.log > results/ut_no2_1_15.out
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+
+--#No.7-1-17 ut-<PG Version>
+
+/*
+ * Stab function dbms_stats.backup
+ */
+ALTER FUNCTION dbms_stats.backup(
+ backup_id int8,
+ relid regclass,
+ attnum int2)
+ RENAME TO truth_func_backup;
+
+CREATE OR REPLACE FUNCTION dbms_stats.backup(
+ backup_id int8,
+ regclass,
+ attnum int2)
+RETURNS int8 AS
+$$
+BEGIN
+ RAISE NOTICE 'arguments are %, %, %', $1, $2, $3;
+ RETURN 1;
+END;
+$$
+LANGUAGE plpgsql;
+
+ALTER FUNCTION dbms_stats.backup(
+ relid regclass,
+ attname text,
+ comment text)
+ RENAME TO truth_func_backup;
+CREATE OR REPLACE FUNCTION dbms_stats.backup(
+ relid regclass DEFAULT NULL,
+ attname text DEFAULT NULL,
+ comment text DEFAULT NULL)
+RETURNS int8 AS
+$$
+BEGIN
+ IF $3 = '<NULL>' THEN
+ RAISE NOTICE 'third argument is not NULL but string "<NULL>"';
+ END IF;
+ RAISE NOTICE 'arguments are %, %, %', $1, $2, $3;
+ RETURN 1;
+END;
+$$
+LANGUAGE plpgsql;
+
+/*
+ * No.8-2 dbms_stats.backup_database_stats
+ */
+SELECT setval('dbms_stats.backup_history_id_seq',8);
+-- No.8-2-1
+SELECT dbms_stats.backup_database_stats('comment');
+
+/*
+ * No.8-4 dbms_stats.backup_table_stats(regclass,comment)
+ */
+-- No.8-4-1
+SELECT dbms_stats.backup_table_stats('s0.st0', 'comment');
+-- No.8-4-2
+SELECT dbms_stats.backup_table_stats('st0', 'comment');
+-- No.8-4-3
+SELECT dbms_stats.backup_table_stats('s00.s0', 'comment');
+
+/*
+ * No.8-5 dbms_stats.backup_table_stats(schemaname, tablename, comment)
+ */
+-- No.8-5-1
+SELECT dbms_stats.backup_table_stats('s0', 'st0', 'comment');
+-- No.8-5-2
+SELECT dbms_stats.backup_table_stats('s00', 's0', 'comment');
+
+/*
+ * No.8-6 dbms_stats.backup_column_stats(regclass, attname, comment)
+ */
+-- No.8-6-1
+SELECT dbms_stats.backup_column_stats('s0.st0', 'id', 'comment');
+-- No.8-6-2
+SELECT dbms_stats.backup_column_stats('st0', 'id', 'comment');
+-- No.8-6-3
+SELECT dbms_stats.backup_column_stats('s00.s0', 'id', 'comment');
+
+/*
+ * No.8-7 dbms_stats.backup_column_stats(schemaname, tablename, attname, comment)
+ */
+-- No.8-7-1
+SELECT dbms_stats.backup_column_stats('s0', 'st0', 'id', 'comment');
+-- No.8-7-2
+SELECT dbms_stats.backup_column_stats('s00', 's0', 'id', 'comment');
+
+/*
+ * Delete stab function dbms_stats.backup
+ */
+DROP FUNCTION dbms_stats.backup(
+ backup_id int8,
+ regclass,
+ attnum int2);
+ALTER FUNCTION dbms_stats.truth_func_backup(
+ backup_id int8,
+ regclass,
+ attnum int2)
+ RENAME TO backup;
+DROP FUNCTION dbms_stats.backup(
+ regclass,
+ attname text,
+ comment text);
+ALTER FUNCTION dbms_stats.truth_func_backup(
+ regclass,
+ attname text,
+ comment text)
+ RENAME TO backup;
+VACUUM ANALYZE;
+
+/*
+ * create backup statistics state A
+ */
+DELETE FROM dbms_stats.backup_history;
+
+INSERT INTO dbms_stats.backup_history(id, time, unit)
+ VALUES (1, '2012-02-29 23:59:56.999999', 'd');
+
+SELECT setval('dbms_stats.backup_history_id_seq',1);
+SELECT dbms_stats.backup();
+UPDATE dbms_stats.backup_history
+ SET time = '2012-02-29 23:59:57'
+ WHERE id = 2;
+SELECT dbms_stats.backup('s0.st0');
+UPDATE dbms_stats.backup_history
+ SET time = '2012-02-29 23:59:57.000001'
+ WHERE id = 3;
+SELECT dbms_stats.backup();
+UPDATE dbms_stats.backup_history
+ SET time = '2012-02-29 23:59:58'
+ WHERE id = 4;
+DELETE FROM dbms_stats.relation_stats_backup
+ WHERE id = 4;
+SELECT dbms_stats.backup('s0.st0', 'id');
+UPDATE dbms_stats.backup_history
+ SET time = '2012-03-01 00:00:00'
+ WHERE id = 5;
+SELECT dbms_stats.backup('s0.st0');
+UPDATE dbms_stats.backup_history
+ SET time = '2012-03-01 00:00:02'
+ WHERE id = 6;
+SELECT dbms_stats.backup('public.st0');
+UPDATE dbms_stats.backup_history
+ SET time = '2012-03-01 00:00:04'
+ WHERE id = 7;
+INSERT INTO dbms_stats.backup_history(time, unit)
+ VALUES ('2012-03-01 00:00:06', 's');
+SELECT dbms_stats.backup(8, c.oid, NULL)
+ FROM pg_catalog.pg_class c,
+ pg_catalog.pg_namespace n
+ WHERE n.nspname = 's0'
+ AND c.relnamespace = n.oid
+ AND c.relkind IN ('r', 'i');
+
+SELECT * FROM dbms_stats.backup_history
+ ORDER BY id;
+
+VACUUM ANALYZE;
+
+/*
+ * Stab function dbms_stats.restore
+ */
+ALTER FUNCTION dbms_stats.restore(int8, regclass, text)
+ RENAME TO truth_func_restore;
+CREATE FUNCTION dbms_stats.restore(int8, regclass DEFAULT NULL, text DEFAULT NULL)
+RETURNS SETOF regclass AS
+$$
+BEGIN
+ RAISE NOTICE 'arguments are "%, %, %"', $1, $2, $3;
+ RETURN QUERY
+ SELECT c.oid::regclass
+ FROM pg_class c, dbms_stats.relation_stats_backup b
+ WHERE (c.oid = $2 OR $2 IS NULL)
+ AND c.oid = b.relid
+ AND c.relkind IN ('r', 'i')
+ AND (b.id <= $1 OR $1 IS NOT NULL)
+ GROUP BY c.oid
+ ORDER BY c.oid::regclass::text;
+END;
+$$
+LANGUAGE plpgsql;
+
+/*
+ * No.10-3 dbms_stats.restore_table_stats(regclass, as_of_timestamp)
+ */
+-- No.10-3-1
+SELECT dbms_stats.restore_table_stats('s0.st0', '2012-02-29 23:59:57');
+-- No.10-3-2
+SELECT dbms_stats.restore_table_stats('s0.st0', '2012-02-29 23:59:57.000002');
+-- No.10-3-3
+SELECT dbms_stats.restore_table_stats('s0.st0', '2012-01-01 00:00:00');
+--#No.10-3-4 is skipped after lock tests
+-- No.10-3-5
+SELECT dbms_stats.restore_table_stats('s0.st0', '2012-02-29 23:59:57');
+-- No.10-3-6
+SELECT dbms_stats.restore_table_stats('st0', '2012-02-29 23:59:57');
+-- No.10-3-7
+SELECT dbms_stats.restore_table_stats('s00.s0', '2012-02-29 23:59:57');
+/*
+ * Stab dbms_stats.restore_table_stats(regclass, as_of_timestamp)
+ */
+CREATE OR REPLACE FUNCTION dbms_stats.restore_table_stats(
+ relid regclass,
+ as_of_timestamp timestamp with time zone)
+RETURNS SETOF regclass AS
+$$
+BEGIN
+ RAISE NOTICE 'arguments are %, %', $1, $2;
+ RETURN QUERY
+ SELECT $1;
+END
+$$
+LANGUAGE plpgsql;
+
+/*
+ * No.10-4 dbms_stats.restore_table_stats(schemaname, tablename, as_of_timestamp)
+ */
+-- No.10-4-1
+SELECT dbms_stats.restore_table_stats('s0', 'st0', '2012-02-29 23:59:57');
+
+/*
+ * No.10-5 dbms_stats.restore_column_stats(regclass, attname, as_of_timestamp)
+ */
+-- No.10-5-1
+SELECT dbms_stats.restore_column_stats('s0.st0', 'id', '2012-02-29 23:59:57');
+-- No.10-5-2
+SELECT dbms_stats.restore_column_stats('s0.st0', 'id', '2012-02-29 23:59:57.000002');
+-- No.10-5-3
+SELECT dbms_stats.restore_column_stats('s0.st0', 'id', '2012-01-01 00:00:00');
+--#No.10-5-4 is skipped after lock tests
+-- No.10-5-5
+SELECT dbms_stats.restore_column_stats('s0.st0', 'id', '2012-02-29 23:59:57');
+-- No.10-5-6
+SELECT dbms_stats.restore_column_stats('st0', 'id', '2012-02-29 23:59:57');
+-- No.10-5-7
+SELECT dbms_stats.restore_column_stats('s00.s0', 'id', '2012-02-29 23:59:57');
+
+/*
+ * No.10-6 dbms_stats.restore_column_stats(
+ * schemaname, tablename, attname, as_of_timestamp)
+ */
+-- No.10-6-1
+SELECT dbms_stats.restore_column_stats('s0', 'st0', 'id', '2012-02-29 23:59:57');
+
+/*
+ * No.15-1 dbms_stats.purge_stats
+ */
+-- No.15-1-1
+SELECT * FROM dbms_stats.backup_history;
+BEGIN;
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+SELECT id, unit, comment FROM dbms_stats.purge_stats(2);
+SELECT relation::regclass, mode
+ FROM pg_locks
+ WHERE mode LIKE '%ExclusiveLock%'
+ ORDER BY relation::regclass::text, mode;
+COMMIT;
+SELECT * FROM dbms_stats.backup_history;
+-- No.15-1-6
+SELECT id, unit, comment FROM dbms_stats.purge_stats(NULL);
+-- No.15-1-7
+SELECT id, unit, comment FROM dbms_stats.purge_stats(-1);
+-- No.15-1-8
+SELECT id, unit, comment FROM dbms_stats.purge_stats(2, NULL);
+-- No.15-1-4
+SELECT * FROM dbms_stats.backup_history;
+SELECT id, unit, comment FROM dbms_stats.purge_stats(3);
+SELECT * FROM dbms_stats.backup_history;
+-- No.15-1-5
+SELECT * FROM dbms_stats.backup_history;
+SELECT id, unit, comment FROM dbms_stats.purge_stats(6);
+SELECT * FROM dbms_stats.backup_history;
+-- No.15-1-2
+SELECT * FROM dbms_stats.backup_history;
+SELECT id, unit, comment FROM dbms_stats.purge_stats(8);
+SELECT * FROM dbms_stats.backup_history;
+-- No.15-1-3
+SELECT * FROM dbms_stats.backup_history;
+SELECT id, unit, comment FROM dbms_stats.purge_stats(8, true);
+SELECT * FROM dbms_stats.backup_history;
+
+/*
+ * create backup statistics state A
+ */
+DELETE FROM dbms_stats.backup_history;
+
+INSERT INTO dbms_stats.backup_history(id, time, unit)
+ VALUES (1, '2012-02-29 23:59:56.999999', 'd');
+
+SELECT setval('dbms_stats.backup_history_id_seq',1);
+SELECT dbms_stats.backup();
+UPDATE dbms_stats.backup_history
+ SET time = '2012-02-29 23:59:57'
+ WHERE id = 2;
+SELECT dbms_stats.backup('s0.st0');
+UPDATE dbms_stats.backup_history
+ SET time = '2012-02-29 23:59:57.000001'
+ WHERE id = 3;
+SELECT dbms_stats.backup();
+UPDATE dbms_stats.backup_history
+ SET time = '2012-02-29 23:59:58'
+ WHERE id = 4;
+DELETE FROM dbms_stats.relation_stats_backup
+ WHERE id = 4;
+SELECT dbms_stats.backup('s0.st0', 'id');
+UPDATE dbms_stats.backup_history
+ SET time = '2012-03-01 00:00:00'
+ WHERE id = 5;
+SELECT dbms_stats.backup('s0.st0');
+UPDATE dbms_stats.backup_history
+ SET time = '2012-03-01 00:00:02'
+ WHERE id = 6;
+SELECT dbms_stats.backup('public.st0');
+UPDATE dbms_stats.backup_history
+ SET time = '2012-03-01 00:00:04'
+ WHERE id = 7;
+INSERT INTO dbms_stats.backup_history(time, unit)
+ VALUES ('2012-03-01 00:00:06', 's');
+SELECT dbms_stats.backup(8, c.oid, NULL)
+ FROM pg_catalog.pg_class c,
+ pg_catalog.pg_namespace n
+ WHERE n.nspname = 's0'
+ AND c.relnamespace = n.oid
+ AND c.relkind IN ('r', 'i');
+
+/*
+ * restore test when only backup data does not exist 's0' schema
+ */
+DELETE FROM dbms_stats.column_stats_backup;
+DELETE FROM dbms_stats.relation_stats_backup
+ WHERE relname LIKE 's0.%';
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+-- No.10-2-8
+SELECT dbms_stats.restore_schema_stats('s0', '2012-03-01 00:00:04');
+
+/*
+ * restore test when there are only backup hisotory
+ */
+DELETE FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+-- No.10-1-5
+SELECT dbms_stats.restore_database_stats('2012-02-29 23:59:58');
+-- No.10-2-5
+SELECT dbms_stats.restore_schema_stats('s0', '2012-02-29 23:59:58');
+/*
+ * restore when Backup does not exist
+ */
+DELETE FROM dbms_stats.backup_history;
+SELECT count(*) FROM dbms_stats.backup_history;
+SELECT count(*) FROM dbms_stats.relation_stats_backup;
+SELECT count(*) FROM dbms_stats.column_stats_backup;
+
+-- No.10-1-4
+SELECT dbms_stats.restore_database_stats('2012-02-29 23:59:57');
+-- No.10-2-4
+SELECT dbms_stats.restore_schema_stats('s0', '2012-02-29 23:59:57');
+-- No.10-3-4
+SELECT dbms_stats.restore_table_stats('s0.st0', '2012-02-29 23:59:57');
+-- No.10-5-4
+SELECT dbms_stats.restore_column_stats('s0.st0', 'id', '2012-02-29 23:59:57');
+
+/*
+ * Delete stab function dbms_stats.restore
+ */
+DROP FUNCTION dbms_stats.restore(int8, regclass, text);
+ALTER FUNCTION dbms_stats.truth_func_restore(int8, regclass, text)
+ RENAME TO restore;
+
+/*
+ * No.18-1 dummy statistics view for general users privileges.
+ */
+\c - regular_user
+-- No.18-1-1
+SELECT count(*) FROM dbms_stats.relation_stats_locked WHERE false;
+-- No.18-1-2
+SELECT count(*) FROM dbms_stats.column_stats_locked WHERE false;
+-- No.18-1-3
+SELECT count(*) FROM dbms_stats.stats WHERE false;
+-- No.18-1-4
+SELECT count(*) FROM dbms_stats._relation_stats_locked WHERE false;
+-- No.18-1-5
+SELECT count(*) FROM dbms_stats._columnns_user WHERE false;
+\c - postgres
+LOAD 'pg_dbms_stats';
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