-- create index
CREATE INDEX testidx ON test USING gist (a);
-- query
- SELECT * FROM test WHERE a < 10;
+ SELECT * FROM test WHERE a < 10;
</programlisting>
</sect2>
</para>
<programlisting>
-a && b Overlaps
+a && b Overlaps
</programlisting>
<para>
The cubements a and b overlap.
</para>
<programlisting>
-a @> b Contains
+a @> b Contains
</programlisting>
<para>
The cubement a contains the cubement b.
</para>
<programlisting>
-a <@ b Contained in
+a <@ b Contained in
</programlisting>
<para>
The cubement a is contained in b.
</para>
<para>
- (Before PostgreSQL 8.2, the containment operators @> and <@ were
+ (Before PostgreSQL 8.2, the containment operators @> and <@ were
respectively called @ and ~. These names are still available, but are
deprecated and will eventually be retired. Notice that the old names
are reversed from the convention formerly followed by the core geometric
</para>
<programlisting>
-[a, b] < [c, d] Less than
-[a, b] > [c, d] Greater than
+[a, b] < [c, d] Less than
+[a, b] > [c, d] Greater than
</programlisting>
<para>
is useful for creating bounding boxes around a point for searching for
nearby points. All defined dimensions are changed by the radius. If n
is greater than the number of defined dimensions and the cube is being
- increased (r >= 0) then 0 is used as the base for the extra coordinates.
+ increased (r >= 0) then 0 is used as the base for the extra coordinates.
LL coordinates are decreased by r and UR coordinates are increased by r.
If a LL coordinate is increased to larger than the corresponding UR
- coordinate (this can only happen when r < 0) than both coordinates are
+ coordinate (this can only happen when r < 0) than both coordinates are
set to their average. To make it harder for people to break things there
is an effective maximum on the dimension of cubes of 100. This is set
in cubedata.h if you need something bigger.
-<!-- $PostgreSQL: pgsql/doc/src/sgml/datatype.sgml,v 1.220 2007/11/27 16:46:36 momjian Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/datatype.sgml,v 1.221 2007/12/03 23:49:50 tgl Exp $ -->
<chapter id="datatype">
<title id="datatype-title">Data Types</title>
function is convenient for performing such normalization:
<programlisting>
-SELECT to_tsquery('Fat:ab & Cats');
+SELECT to_tsquery('Fat:ab & Cats');
to_tsquery
------------------
- 'fat':AB & 'cat'
+ 'fat':AB & 'cat'
</programlisting>
</para>
-<!-- $PostgreSQL: pgsql/doc/src/sgml/ddl.sgml,v 1.79 2007/12/03 04:59:55 tgl Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/ddl.sgml,v 1.80 2007/12/03 23:49:50 tgl Exp $ -->
<chapter id="ddl">
<title>Data Definition</title>
<para>
To set up a partitioned table, do the following:
- <orderedlist spacing=compact>
+ <orderedlist spacing="compact">
<listitem>
<para>
Create the <quote>master</quote> table, from which all of the
</para>
<para>
- <orderedlist spacing=compact>
+ <orderedlist spacing="compact">
<listitem>
<para>
The master table is the <structname>measurement</> table, declared
-<!-- $PostgreSQL: pgsql/doc/src/sgml/dml.sgml,v 1.16 2007/02/01 00:28:16 momjian Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/dml.sgml,v 1.17 2007/12/03 23:49:50 tgl Exp $ -->
<chapter id="dml">
<title>Data Manipulation</title>
<para>
To perform an update, you need three pieces of information:
- <orderedlist spacing=compact>
+ <orderedlist spacing="compact">
<listitem>
<para>The name of the table and column to update,</para>
</listitem>
</entry>
</row>
<row>
- <entry><literal><@></literal> operator</entry>
+ <entry><literal><@></literal> operator</entry>
<entry>gives the distance in statute miles between
two points on the Earth's surface. Coordinates are in degrees. Points are
taken as (longitude, latitude) and not vice versa as longitude is closer
-<!-- $PostgreSQL: pgsql/doc/src/sgml/ecpg.sgml,v 1.84 2007/11/07 12:24:23 petere Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/ecpg.sgml,v 1.85 2007/12/03 23:49:50 tgl Exp $ -->
<chapter id="ecpg">
<title><application>ECPG</application> - Embedded <acronym>SQL</acronym> in C</title>
ECPG = ecpg
%.c: %.pgc
- $(ECPG) $<
+ $(ECPG) $<
</programlisting>
</para>
-<!-- $PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.414 2007/11/28 15:42:31 petere Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.415 2007/12/03 23:49:50 tgl Exp $ -->
<chapter id="functions">
<title>Functions and Operators</title>
<entry><literal><function>to_tsquery</function>(<optional> <replaceable class="PARAMETER">config</> <type>regconfig</> , </optional> <replaceable class="PARAMETER">query</> <type>text</type>)</literal></entry>
<entry><type>tsquery</type></entry>
<entry>normalize words and convert to <type>tsquery</></entry>
- <entry><literal>to_tsquery('english', 'The & Fat & Rats')</literal></entry>
- <entry><literal>'fat' & 'rat'</literal></entry>
+ <entry><literal>to_tsquery('english', 'The & Fat & Rats')</literal></entry>
+ <entry><literal>'fat' & 'rat'</literal></entry>
</row>
<row>
<entry><literal><function>plainto_tsquery</function>(<optional> <replaceable class="PARAMETER">config</> <type>regconfig</> , </optional> <replaceable class="PARAMETER">query</> <type>text</type>)</literal></entry>
<entry><type>tsquery</type></entry>
<entry>produce <type>tsquery</> ignoring punctuation</entry>
<entry><literal>plainto_tsquery('english', 'The Fat Rats')</literal></entry>
- <entry><literal>'fat' & 'rat'</literal></entry>
+ <entry><literal>'fat' & 'rat'</literal></entry>
</row>
<row>
<entry><literal><function>numnode</function>(<type>tsquery</>)</literal></entry>
<entry><literal><function>querytree</function>(<replaceable class="PARAMETER">query</replaceable> <type>tsquery</>)</literal></entry>
<entry><type>text</type></entry>
<entry>get indexable part of a <type>tsquery</></entry>
- <entry><literal>querytree('foo & ! bar'::tsquery)</literal></entry>
+ <entry><literal>querytree('foo & ! bar'::tsquery)</literal></entry>
<entry><literal>'foo'</literal></entry>
</row>
<row>
SELECT * FROM s WHERE soundex(nm) = soundex('john');
-SELECT a.nm, b.nm FROM s a, s b WHERE soundex(a.nm) = soundex(b.nm) AND a.oid <> b.oid;
+SELECT a.nm, b.nm FROM s a, s b WHERE soundex(a.nm) = soundex(b.nm) AND a.oid <> b.oid;
CREATE FUNCTION text_sx_eq(text, text) RETURNS boolean AS
'select soundex($1) = soundex($2)'
LANGUAGE SQL;
CREATE FUNCTION text_sx_lt(text, text) RETURNS boolean AS
-'select soundex($1) < soundex($2)'
+'select soundex($1) < soundex($2)'
LANGUAGE SQL;
CREATE FUNCTION text_sx_gt(text, text) RETURNS boolean AS
-'select soundex($1) > soundex($2)'
+'select soundex($1) > soundex($2)'
LANGUAGE SQL;
CREATE FUNCTION text_sx_le(text, text) RETURNS boolean AS
-'select soundex($1) <= soundex($2)'
+'select soundex($1) <= soundex($2)'
LANGUAGE SQL;
CREATE FUNCTION text_sx_ge(text, text) RETURNS boolean AS
-'select soundex($1) >= soundex($2)'
+'select soundex($1) >= soundex($2)'
LANGUAGE SQL;
CREATE FUNCTION text_sx_ne(text, text) RETURNS boolean AS
-'select soundex($1) <> soundex($2)'
+'select soundex($1) <> soundex($2)'
LANGUAGE SQL;
DROP OPERATOR #= (text, text);
SELECT * FROM s WHERE s.nm #= 'john';
-SELECT * FROM s WHERE difference(s.nm, 'john') > 2;
+SELECT * FROM s WHERE difference(s.nm, 'john') > 2;
</programlisting>
</sect2>
</thead>
<tbody>
<row>
- <entry><literal>int[] && int[]</literal></entry>
+ <entry><literal>int[] && int[]</literal></entry>
<entry>overlap - returns TRUE if arrays have at least one common element</entry>
</row>
<row>
- <entry><literal>int[] @> int[]</literal></entry>
+ <entry><literal>int[] @> int[]</literal></entry>
<entry>contains - returns TRUE if left array contains right array</entry>
</row>
<row>
- <entry><literal>int[] <@ int[]</literal></entry>
+ <entry><literal>int[] <@ int[]</literal></entry>
<entry>contained - returns TRUE if left array is contained in right array</entry>
</row>
<row>
</row>
<row>
- <entry><literal>int[] & int[]</literal></entry>
+ <entry><literal>int[] & int[]</literal></entry>
<entry>returns intersection of arrays</entry>
</row>
</tgroup>
</table>
<para>
- (Before PostgreSQL 8.2, the containment operators @> and <@ were
+ (Before PostgreSQL 8.2, the containment operators @> and <@ were
respectively called @ and ~. These names are still available, but are
deprecated and will eventually be retired. Notice that the old names
are reversed from the convention formerly followed by the core geometric
CREATE INDEX message_rdtree_idx ON message USING GIST ( sections gist__int_ops);
-- select some messages with section in 1 OR 2 - OVERLAP operator
-SELECT message.mid FROM message WHERE message.sections && '{1,2}';
+SELECT message.mid FROM message WHERE message.sections && '{1,2}';
-- select messages contains in sections 1 AND 2 - CONTAINS operator
-SELECT message.mid FROM message WHERE message.sections @> '{1,2}';
+SELECT message.mid FROM message WHERE message.sections @> '{1,2}';
-- the same, CONTAINED operator
-SELECT message.mid FROM message WHERE '{1,2}' <@ message.sections;
+SELECT message.mid FROM message WHERE '{1,2}' <@ message.sections;
</programlisting>
</sect2>
<programlisting>
cd ./bench
1. createdb TEST
- 2. psql TEST < ../_int.sql
+ 2. psql TEST < ../_int.sql
3. ./create_test.pl | psql TEST
4. ./bench.pl - perl script to benchmark queries, supports OR, AND queries
with/without RD-Tree. Run script without arguments to
<itemizedlist>
<listitem>
<para>
- ISBN13 -> EAN13
+ ISBN13 -> EAN13
</para>
</listitem>
<listitem>
<para>
- ISMN13 -> EAN13
+ ISMN13 -> EAN13
</para>
</listitem>
<listitem>
<para>
- ISSN13 -> EAN13
+ ISSN13 -> EAN13
</para>
</listitem>
<listitem>
<para>
- ISBN -> EAN13
+ ISBN -> EAN13
</para>
</listitem>
<listitem>
<para>
- ISMN -> EAN13
+ ISMN -> EAN13
</para>
</listitem>
<listitem>
<para>
- ISSN -> EAN13
+ ISSN -> EAN13
</para>
</listitem>
<listitem>
<para>
- UPC -> EAN13
+ UPC -> EAN13
</para>
</listitem>
<listitem>
<para>
- ISBN <-> ISBN13
+ ISBN <-> ISBN13
</para>
</listitem>
<listitem>
<para>
- ISMN <-> ISMN13
+ ISMN <-> ISMN13
</para>
</listitem>
<listitem>
<para>
- ISSN <-> ISSN13
+ ISSN <-> ISSN13
</para>
</listitem>
</itemizedlist>
</itemizedlist>
<para>
- As the ODBC driver needs a permanent lo type (& JDBC could be optimised to
+ As the ODBC driver needs a permanent lo type (& JDBC could be optimised to
use it if it's Oid is fixed), and as the above issues can only be fixed by
some internal changes, I feel it should become a permanent built-in type.
</para>
<sect2>
<title>Definitions</title>
<para>
- A <emphasis>label</emphasis> of a node is a sequence of one or more words
+ A <firstterm>label</firstterm> of a node is a sequence of one or more words
separated by blank character '_' and containing letters and digits ( for
example, [a-zA-Z0-9] for C locale). The length of a label is limited by 256
bytes.
Example: 'Countries', 'Personal_Services'
</para>
<para>
- A <emphasis>label path</emphasis> of a node is a sequence of one or more
+ A <firstterm>label path</firstterm> of a node is a sequence of one or more
dot-separated labels l1.l2...ln, represents path from root to the node. The
- length of a label path is limited by 65Kb, but size <= 2Kb is preferrable.
+ length of a label path is limited by 65Kb, but size <= 2Kb is preferrable.
We consider it's not a strict limitation (maximal size of label path for
DMOZ catalogue - <ulink url="http://www.dmoz.org"></ulink>, is about 240
bytes!)
</listitem>
<listitem>
<para>% Don't account word separator '_' in label matching, that is
- 'Russian%' would match 'Russian_nations', but not 'Russian'
+ 'Russian%' would match 'Russian_nations', but not 'Russian'
</para>
</listitem>
</itemizedlist>
the end of word. The meaning of modifiers are the same as for lquery.
</para>
<para>
- Example: <literal>'Europe & Russia*@ & !Transportation'</literal>
+ Example: <literal>'Europe & Russia*@ & !Transportation'</literal>
</para>
<para>
Search paths contain words 'Europe' and 'Russia*' (case-insensitive) and
<itemizedlist>
<listitem>
<para>
- <literal><,>,<=,>=,=, <></literal>
+ <literal><,>,<=,>=,=, <></literal>
- Have their usual meanings. Comparison is doing in the order of direct
tree traversing, children of a node are sorted lexicographic.
</para>
</listitem>
<listitem>
<para>
- <literal>ltree @> ltree</literal>
+ <literal>ltree @> ltree</literal>
- returns TRUE if left argument is an ancestor of right argument (or
equal).
</para>
</listitem>
<listitem>
<para>
- <literal>ltree <@ ltree </literal>
+ <literal>ltree <@ ltree </literal>
- returns TRUE if left argument is a descendant of right argument (or
equal).
</para>
<itemizedlist>
<listitem>
<para>
- <literal>ltree[] @> ltree, ltree <@ ltree[]</literal>
+ <literal>ltree[] @> ltree, ltree <@ ltree[]</literal>
- returns TRUE if array ltree[] contains an ancestor of ltree.
</para>
</listitem>
<listitem>
<para>
- <literal>ltree @> ltree[], ltree[] <@ ltree</literal>
+ <literal>ltree @> ltree[], ltree[] <@ ltree</literal>
- returns TRUE if array ltree[] contains a descendant of ltree.
</para>
</listitem>
</listitem>
<listitem>
<para>
- <literal>ltree[] ?@> ltree, ltree ?<@ ltree[], ltree[] ?~ lquery, ltree[] ?@ ltxtquery</literal>
+ <literal>ltree[] ?@> ltree, ltree ?<@ ltree[], ltree[] ?~ lquery, ltree[] ?@ ltxtquery</literal>
- returns first element of array ltree[] satisfies corresponding condition
and NULL in vice versa.
</listitem>
<listitem>
<para>GiST index over ltree[]:
- <literal>ltree[]<@ ltree, ltree @> ltree[], @, ~, ?.</literal>
+ <literal>ltree[]<@ ltree, ltree @> ltree[], @, ~, ?.</literal>
</para>
<para>
Example:
<title>Example</title>
<programlisting>
createdb ltreetest
- psql ltreetest < /usr/local/pgsql/share/contrib/ltree.sql
- psql ltreetest < ltreetest.sql
+ psql ltreetest < /usr/local/pgsql/share/contrib/ltree.sql
+ psql ltreetest < ltreetest.sql
</programlisting>
<para>
</para>
<programlisting>
-ltreetest=# select path from test where path <@ 'Top.Science';
+ltreetest=# select path from test where path <@ 'Top.Science';
path
------------------------------------
Top.Science
Full text search:
</para>
<programlisting>
-ltreetest=# select path from test where path @ 'Astro*% & !pictures@';
+ltreetest=# select path from test where path @ 'Astro*% & !pictures@';
path
------------------------------------
Top.Science.Astronomy
Top.Hobbies.Amateurs_Astronomy
(4 rows)
-ltreetest=# select path from test where path @ 'Astro* & !pictures@';
+ltreetest=# select path from test where path @ 'Astro* & !pictures@';
path
------------------------------------
Top.Science.Astronomy
Using Functions:
</para>
<programlisting>
-ltreetest=# select subpath(path,0,2)||'Space'||subpath(path,2) from test where path <@ 'Top.Science.Astronomy';
+ltreetest=# select subpath(path,0,2)||'Space'||subpath(path,2) from test where path <@ 'Top.Science.Astronomy';
?column?
------------------------------------------
Top.Science.Space.Astronomy
</para>
<programlisting>
-ltreetest=# select ins_label(path,2,'Space') from test where path <@ 'Top.Science.Astronomy';
+ltreetest=# select ins_label(path,2,'Space') from test where path <@ 'Top.Science.Astronomy';
ins_label
------------------------------------------
Top.Science.Space.Astronomy
AS 'select subpath($1,0,nlevel($2)) || $3 || subpath($1,nlevel($2));'
LANGUAGE SQL IMMUTABLE;
-ltreetest=# select ins_label(path,'Top.Science'::ltree,'Space') from test where path <@ 'Top.Science.Astronomy';
+ltreetest=# select ins_label(path,'Top.Science'::ltree,'Space') from test where path <@ 'Top.Science.Astronomy';
ins_label
------------------------------------------
Top.Science.Space.Astronomy
Q2: The same as Q1 but with counting of successors
</para>
<programlisting>
- select path as parentpath , (select count(*)-1 from dmoz where path <@
+ select path as parentpath , (select count(*)-1 from dmoz where path <@
p.path) as count from dmoz p where path ~ 'Top.Adult.Arts.Animation.*{1}';
parentpath | count
-----------------------------------+-------
Q3: Get all parents
</para>
<programlisting>
- select path from dmoz where path @> 'Top.Adult.Arts.Animation' order by
+ select path from dmoz where path @> 'Top.Adult.Arts.Animation' order by
path asc;
path
--------------------------
Q4: Get all parents with counting of children
</para>
<programlisting>
- select path, (select count(*)-1 from dmoz where path <@ p.path) as count
- from dmoz p where path @> 'Top.Adult.Arts.Animation' order by path asc;
+ select path, (select count(*)-1 from dmoz where path <@ p.path) as count
+ from dmoz p where path @> 'Top.Adult.Arts.Animation' order by path asc;
path | count
--------------------------+--------
Top | 300273
<para>
For ltree we store LPS in a B-tree, implemented using GiST. Each node entry is
represented by (left_bound, signature, right_bound), so that we could speedup
- operations <literal><, <=, =, >=, ></literal> using left_bound, right_bound and prune branches of
+ operations <literal><, <=, =, >=, ></literal> using left_bound, right_bound and prune branches of
a tree using signature.
</para>
</sect2>
</para>
</sect2>
</sect1>
-
-<!-- $PostgreSQL: pgsql/doc/src/sgml/plpgsql.sgml,v 1.121 2007/11/28 21:47:39 momjian Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/plpgsql.sgml,v 1.122 2007/12/03 23:49:50 tgl Exp $ -->
<chapter id="plpgsql">
<title><application>PL/pgSQL</application> - <acronym>SQL</acronym> Procedural Language</title>
</programlisting>
what happens behind the scenes is
<programlisting>
-PREPARE <replaceable>statement_name</>(integer, integer) AS SELECT $1 < $2;
+PREPARE <replaceable>statement_name</>(integer, integer) AS SELECT $1 < $2;
</programlisting>
and then this prepared statement is <command>EXECUTE</>d for each
execution of the <command>IF</> statement, with the current values
-<!-- $PostgreSQL: pgsql/doc/src/sgml/pltcl.sgml,v 2.46 2007/02/21 03:27:31 adunstan Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/pltcl.sgml,v 2.47 2007/12/03 23:49:50 tgl Exp $ -->
<chapter id="pltcl">
<title>PL/Tcl - Tcl Procedural Language</title>
if {200000.0 < $1(salary)} {
return "t"
}
- if {$1(age) < 30 && 100000.0 < $1(salary)} {
+ if {$1(age) < 30 && 100000.0 < $1(salary)} {
return "t"
}
return "f"
<!--
-$PostgreSQL: pgsql/doc/src/sgml/ref/create_opclass.sgml,v 1.20 2007/01/31 23:26:03 momjian Exp $
+$PostgreSQL: pgsql/doc/src/sgml/ref/create_opclass.sgml,v 1.21 2007/12/03 23:49:51 tgl Exp $
PostgreSQL documentation
-->
<programlisting>
CREATE OPERATOR CLASS gist__int_ops
DEFAULT FOR TYPE _int4 USING gist AS
- OPERATOR 3 &&,
+ OPERATOR 3 &&,
OPERATOR 6 = RECHECK,
OPERATOR 7 @>,
OPERATOR 8 <@,
-<!-- $PostgreSQL: pgsql/doc/src/sgml/release.sgml,v 1.558 2007/12/02 03:47:11 tgl Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/release.sgml,v 1.559 2007/12/03 23:49:50 tgl Exp $ -->
<!--
Typical markup:
</para>
<para>
- The new operators are <literal>&</> (and), <literal>|</>
+ The new operators are <literal>&</> (and), <literal>|</>
(or), <literal>~</> (not), <type>inet</> <literal>+</> <type>int8</>,
<type>inet</> <literal>-</> <type>int8</>, and
<type>inet</> <literal>-</> <type>inet</>.
<listitem>
<para>
- Remove the <literal><<</>, <literal>>></>,
- <literal>&<</>, and <literal>&></> operators from
+ Remove the <literal><<</>, <literal>>></>,
+ <literal>&<</>, and <literal>&></> operators from
<filename>/contrib/cube</>
</para>
<para>
<listitem>
<para>
This is the first <productname>PostgreSQL</productname> release
- to run natively on <trademark class=registered>Microsoft Windows</> as
+ to run natively on <trademark class="registered">Microsoft Windows</> as
a server. It can run as a <productname>Windows</> service. This
release supports NT-based Windows releases like
<productname>Windows 2000 SP4</>, <productname>Windows XP</>, and
Add SJIS UDC (NEC selection IBM kanji) support (Eiji Tokuya)
Fix too long syslog message (Tatsuo)
Fix problem with quoted indexes that are too long (Tom)
-JDBC ResultSet.getTimestamp() fix (Gregory Krasnow & Floyd Marinescu)
+JDBC ResultSet.getTimestamp() fix (Gregory Krasnow & Floyd Marinescu)
ecpg changes (Michael)
</programlisting>
</para>
Add new html development tools, and flow chart in /tools/backend
Fix for SCO compiles
Stratus computer port Robert Gillies
-Added support for shlib for BSD44_derived & i386_solaris
+Added support for shlib for BSD44_derived & i386_solaris
Make configure more automated(Brook)
Add script to check regression test results
Break parser functions into smaller files, group together(Bruce)
------------
Default genetic optimizer GEQO parameter is now 8(Bruce)
Allow use parameters in target list having aggregates in functions(Vadim)
-Added JDBC driver as an interface(Adrian & Peter)
+Added JDBC driver as an interface(Adrian & Peter)
pg_password utility
Return number of rows inserted/affected by INSERT/UPDATE/DELETE etc.(Vadim)
Triggers implemented with CREATE TRIGGER (SQL3)(Vadim)
Implement extended comments ("/* ... */") using exclusive states(Thomas)
Add "//" single-line comments(Bruce)
Remove some restrictions on characters in operator names(Thomas)
-DEFAULT and CONSTRAINT for tables implemented (SQL92)(Vadim & Thomas)
+DEFAULT and CONSTRAINT for tables implemented (SQL92)(Vadim & Thomas)
Add text concatenation operator and function (SQL92)(Thomas)
Support WITH TIME ZONE syntax (SQL92)(Thomas)
Support INTERVAL unit TO unit syntax (SQL92)(Thomas)
Replace "above" operator "!^" with ">^" and "below" operator "!|" with "<^"(Thomas)
Add routines for text trimming on both ends, substring, and string position(Thomas)
Added conversion routines circle(box) and poly(circle)(Thomas)
-Allow internal sorts to be stored in memory rather than in files(Bruce & Vadim)
+Allow internal sorts to be stored in memory rather than in files(Bruce & Vadim)
Allow functions and operators on internally-identical types to succeed(Bruce)
Speed up backend start-up after profiling analysis(Bruce)
Inline frequently called functions for performance(Bruce)
Replace fopen() calls with calls to fd.c functions(Bruce)
Make functions static where possible(Bruce)
enclose unused functions in #ifdef NOT_USED(Bruce)
-Remove call to difftime() in timestamp support to fix SunOS(Bruce & Thomas)
+Remove call to difftime() in timestamp support to fix SunOS(Bruce & Thomas)
Changes for Digital Unix
Portability fix for pg_dumpall(Bruce)
Rename pg_attribute.attnvals to attdispersion(Bruce)
"built-in" manual page now "pgbuiltin"(Bruce)
"drop" manual page now "drop_table"(Bruce)
Add "create_trigger", "drop_trigger" manual pages(Thomas)
-Add constraints regression test(Vadim & Thomas)
+Add constraints regression test(Vadim & Thomas)
Add comments syntax regression test(Thomas)
Add PGINDENT and support program(Bruce)
Massive commit to run PGINDENT on all *.c and *.h files(Bruce)
Files moved to /src/tools directory(Bruce)
-SPI and Trigger programming guides (Vadim & D'Arcy)
+SPI and Trigger programming guides (Vadim & D'Arcy)
</programlisting>
</para>
</sect2>
Allow non-postgres users with createdb privs to destroydb's
Allow restriction on who can create C functions(Bryan)
Allow restriction on who can do backend COPY(Bryan)
-Can shrink tables, pg_time and pg_log(Vadim & Erich)
+Can shrink tables, pg_time and pg_log(Vadim & Erich)
Change debug level 2 to print queries only, changed debug heading layout(Bruce)
Change default decimal constant representation from float4 to float8(Bruce)
European date format now set when postmaster is started
<para>
The external representation of an interval is formed using one or two
floating point numbers joined by the range operator ('..' or '...').
- Optional certainty indicators (<, > and ~) are ignored by the internal
+ Optional certainty indicators (<, > and ~) are ignored by the internal
logics, but are retained in the data.
</para>
<tbody>
<row>
<entry>rule 1</entry>
- <entry>seg -> boundary PLUMIN deviation</entry>
+ <entry>seg -> boundary PLUMIN deviation</entry>
</row>
<row>
<entry>rule 2</entry>
- <entry>seg -> boundary RANGE boundary</entry>
+ <entry>seg -> boundary RANGE boundary</entry>
</row>
<row>
<entry>rule 3</entry>
- <entry>seg -> boundary RANGE</entry>
+ <entry>seg -> boundary RANGE</entry>
</row>
<row>
<entry>rule 4</entry>
- <entry>seg -> RANGE boundary</entry>
+ <entry>seg -> RANGE boundary</entry>
</row>
<row>
<entry>rule 5</entry>
- <entry>seg -> boundary</entry>
+ <entry>seg -> boundary</entry>
</row>
<row>
<entry>rule 6</entry>
- <entry>boundary -> FLOAT</entry>
+ <entry>boundary -> FLOAT</entry>
</row>
<row>
<entry>rule 7</entry>
- <entry>boundary -> EXTENSION FLOAT</entry>
+ <entry>boundary -> EXTENSION FLOAT</entry>
</row>
<row>
<entry>rule 8</entry>
- <entry>deviation -> FLOAT</entry>
+ <entry>deviation -> FLOAT</entry>
</row>
</tbody>
</tgroup>
</row>
<row>
<entry>EXTENSION</entry>
- <entry>[<>~]</entry>
+ <entry>[<>~]</entry>
</row>
</tbody>
</tgroup>
</entry>
</row>
<row>
- <entry><5.0</entry>
+ <entry><5.0</entry>
<entry>
- (rules 5,7) -- creates a point at 5.0; '<' is ignored but
+ (rules 5,7) -- creates a point at 5.0; '<' is ignored but
is preserved as a comment
</entry>
</row>
<row>
- <entry>>5.0</entry>
+ <entry>>5.0</entry>
<entry>
- (rules 5,7) -- creates a point at 5.0; '>' is ignored but
+ (rules 5,7) -- creates a point at 5.0; '>' is ignored but
is preserved as a comment
</entry>
</row>
<itemizedlist>
<listitem>
<programlisting>
-[a, b] << [c, d] Is left of
+[a, b] << [c, d] Is left of
</programlisting>
<para>
The left operand, [a, b], occurs entirely to the left of the
right operand, [c, d], on the axis (-inf, inf). It means,
- [a, b] << [c, d] is true if b < c and false otherwise
+ [a, b] << [c, d] is true if b < c and false otherwise
</para>
</listitem>
<listitem>
<programlisting>
-[a, b] >> [c, d] Is right of
+[a, b] >> [c, d] Is right of
</programlisting>
<para>
[a, b] is occurs entirely to the right of [c, d].
- [a, b] >> [c, d] is true if a > d and false otherwise
+ [a, b] >> [c, d] is true if a > d and false otherwise
</para>
</listitem>
<listitem>
<programlisting>
-[a, b] &< [c, d] Overlaps or is left of
+[a, b] &< [c, d] Overlaps or is left of
</programlisting>
<para>
This might be better read as "does not extend to right of".
- It is true when b <= d.
+ It is true when b <= d.
</para>
</listitem>
<listitem>
<programlisting>
-[a, b] &> [c, d] Overlaps or is right of
+[a, b] &> [c, d] Overlaps or is right of
</programlisting>
<para>
This might be better read as "does not extend to left of".
- It is true when a >= c.
+ It is true when a >= c.
</para>
</listitem>
<listitem>
</listitem>
<listitem>
<programlisting>
-[a, b] && [c, d] Overlaps
+[a, b] && [c, d] Overlaps
</programlisting>
<para>
The segments [a, b] and [c, d] overlap.
</listitem>
<listitem>
<programlisting>
-[a, b] @> [c, d] Contains
+[a, b] @> [c, d] Contains
</programlisting>
<para>
The segment [a, b] contains the segment [c, d], that is,
- a <= c and b >= d
+ a <= c and b >= d
</para>
</listitem>
<listitem>
<programlisting>
-[a, b] <@ [c, d] Contained in
+[a, b] <@ [c, d] Contained in
</programlisting>
<para>
The segment [a, b] is contained in [c, d], that is,
- a >= c and b <= d
+ a >= c and b <= d
</para>
</listitem>
</itemizedlist>
<para>
- (Before PostgreSQL 8.2, the containment operators @> and <@ were
+ (Before PostgreSQL 8.2, the containment operators @> and <@ were
respectively called @ and ~. These names are still available, but are
deprecated and will eventually be retired. Notice that the old names
are reversed from the convention formerly followed by the core geometric
</para>
<programlisting>
-[a, b] < [c, d] Less than
-[a, b] > [c, d] Greater than
+[a, b] < [c, d] Less than
+[a, b] > [c, d] Greater than
</programlisting>
<para>
These operators do not make a lot of sense for any practical
e.g. the provided crosstab2 function produces a set something like:
</para>
<programlisting>
- <== values columns ==>
+ <== values columns ==>
row_name category_1 category_2
---------+------------+------------
row1 val1 val2
the example crosstab function produces a set something like:
</para>
<programlisting>
- <== values columns ==>
+ <== values columns ==>
row_name category_1 category_2
---------+------------+------------
row1 val1 val2
the example crosstab function produces a set something like:
</para>
<programlisting>
- <== values columns ==>
+ <== values columns ==>
row_name extra cat1 cat2 cat3 cat4
---------+-------+------+------+------+------
row1 extra1 val1 val2 val4
-<!-- $PostgreSQL: pgsql/doc/src/sgml/trigger.sgml,v 1.50 2007/02/14 01:58:56 tgl Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/trigger.sgml,v 1.51 2007/12/03 23:49:51 tgl Exp $ -->
<chapter id="triggers">
<title>Triggers</title>
</programlisting>
which expands to:
<programlisting>
-((fcinfo)->context != NULL && IsA((fcinfo)->context, TriggerData))
+((fcinfo)->context != NULL && IsA((fcinfo)->context, TriggerData))
</programlisting>
If this returns true, then it is safe to cast
<literal>fcinfo->context</> to type <literal>TriggerData
/* check for null values */
if (!TRIGGER_FIRED_BY_DELETE(trigdata->tg_event)
- && TRIGGER_FIRED_BEFORE(trigdata->tg_event))
+ && TRIGGER_FIRED_BEFORE(trigdata->tg_event))
checknull = true;
if (TRIGGER_FIRED_BEFORE(trigdata->tg_event))
</para>
<para>
Also note that if either the document or stylesheet values do not
- begin with a < then they will be treated as URLs and libxslt will
+ begin with a < then they will be treated as URLs and libxslt will
fetch them. It thus follows that you can use xslt_process as a means
to fetch the contents of URLs - you should be aware of the security
implications of this.
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