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+<!-- $PostgreSQL: pgsql/doc/src/sgml/release.sgml,v 1.437 2006/09/18 23:01:43 momjian Exp $ -->
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<title>Migration to version 8.2</title>
<para>
- A dump/restore using <application>pg_dump</application> is required
- for those wishing to migrate data from any previous release.
+ A dump/restore using <application>pg_dump</application> is
+ required for those wishing to migrate data from any previous
+ release.
</para>
<para>
<listitem>
<para>
- Improve efficiency of <literal>IN</> (list-of-expressions) clauses (Tom)
+ Improve efficiency of <literal>IN</> (list-of-expressions)
+ clauses (Tom)
</para>
</listitem>
<listitem>
<para>
- Reduce locking requirements of sequential scans (Qingqing Zhou)
+ Reduce locking requirements of sequential scans (Qingqing
+ Zhou)
</para>
</listitem>
<listitem>
<para>
- Improve subtransaction performance (Alvaro, Itagaki Takahiro, Tom)
+ Improve subtransaction performance (Alvaro, Itagaki Takahiro,
+ Tom)
</para>
</listitem>
<listitem>
<para>
- Improve locking performance by breaking locks into sections (Tom)
+ Improve locking performance by breaking locks into sections
+ (Tom)
</para>
<para>
- This allows locking to be more fine-grained, reducing contention.
+ This allows locking to be more fine-grained, reducing
+ contention.
</para>
</listitem>
<listitem>
<para>
- Allow the planner to re-order <literal>OUTER JOIN</>s when possible (Tom)
+ Allow the planner to re-order <literal>OUTER JOIN</>s when
+ possible (Tom)
</para>
<para>
- This makes a considerable difference for queries involving multiple outer
- joins.
+ This makes a considerable difference for queries involving
+ multiple outer joins.
</para>
</listitem>
<listitem>
<para>
- Improve planning of joins to inherited tables and <literal>UNION ALL</> views (Tom)
+ Improve planning of joins to inherited tables and <literal>UNION
+ ALL</> views (Tom)
</para>
</listitem>
<listitem>
<para>
- Improve cost estimation for nestloop index scans (Tom)
+ Improve cost estimation for nestloop index scans (Tom)
</para>
<para>
- This may eliminate the need to set unrealistically small values of
- <envar>random_page_cost</>. If you have been using a very small
- <envar>random_page_cost</>, please recheck your test cases.
+ This may eliminate the need to set unrealistically small
+ values of <envar>random_page_cost</>. If you have been
+ using a very small <envar>random_page_cost</>, please
+ recheck your test cases.
</para>
</listitem>
<listitem>
<para>
- Increase default values for <envar>shared_buffers</> and <envar>max_fsm_pages</>(Andrew)
+ Increase default values for <envar>shared_buffers</> and
+ <envar>max_fsm_pages</>(Andrew)
</para>
</listitem>
<listitem>
<para>
- Improve the optimizer statistics used by <literal>LIKE</>, <literal>ILIKE</>, and regular expression
- operations (Tom)
+ Improve the optimizer statistics used by <literal>LIKE</>,
+ <literal>ILIKE</>, and regular expression operations (Tom)
</para>
</listitem>
<listitem>
<para>
- Allow constraint exclusion to be applied to inherited <command>UPDATE</>/<command>DELETE</>
- queries (Tom)
+ Allow constraint exclusion to be applied to inherited
+ <command>UPDATE</>/<command>DELETE</> queries (Tom)
</para>
<para>
- <command>SELECT</> already honored constraint exclusion.
+ <command>SELECT</> already honored constraint exclusion.
</para>
</listitem>
<listitem>
<para>
- Improve sorting speed and reduce memory usage (Simon, Tom)
+ Improve sorting speed and reduce memory usage (Simon, Tom)
</para>
</listitem>
<listitem>
<para>
- <function>MIN()</>/<function>MAX()</> can now use indexes in more cases (Tom)
+ <function>MIN()</>/<function>MAX()</> can now use indexes
+ in more cases (Tom)
</para>
</listitem>
<listitem>
<para>
- Improve concurrency for database creation and destruction (Tom)
+ Improve concurrency for database creation and destruction
+ (Tom)
</para>
</listitem>
<listitem>
<para>
- Speed up vacuuming of btree indexes (Heikki Linnakangas, Tom)
+ Speed up vacuuming of btree indexes (Heikki Linnakangas,
+ Tom)
</para>
</listitem>
<listitem>
<para>
- Improve <command>COPY</> performance (Alon Goldshuv, Tom)
+ Improve <command>COPY</> performance (Alon Goldshuv, Tom)
</para>
</listitem>
<listitem>
<para>
- Add <literal>FILLFACTOR</> to <command>CREATE INDEX</> (ITAGAKI Takahiro)
+ Add <literal>FILLFACTOR</> to <command>CREATE INDEX</>
+ (ITAGAKI Takahiro)
</para>
<para>
- This provides infrastructure to allow index access methods to
- accept special parameters of all kinds, but <literal>FILLFACTOR</> is
- implemented first.
+ This provides infrastructure to allow index access methods
+ to accept special parameters of all kinds, but
+ <literal>FILLFACTOR</> is implemented first.
</para>
</listitem>
<listitem>
<para>
- Remove dead index entries before btree page split (Junji Teramoto)
+ Remove dead index entries before btree page split (Junji
+ Teramoto)
</para>
</listitem>
</sect3>
<listitem>
<para>
- Add support for include directives in <filename>postgresql.conf</> (Joachim Wieland)
+ Add support for include directives in <filename>postgresql.conf</>
+ (Joachim Wieland)
</para>
</listitem>
<listitem>
<para>
-
Add native <acronym>LDAP</> authentication (Magnus Hagander)
+ Add native <acronym>LDAP</> authentication (Magnus Hagander)
</para>
<para>
- This is particularly useful for platforms that do not support <acronym>PAM</>,
- such as Win32.
+ This is particularly useful for platforms that do not
+ support <acronym>PAM</>, such as Win32.
</para>
</listitem>
<listitem>
<para>
- Re-enable <envar>full_page_writes</> (Tom)
+ Re-enable <envar>full_page_writes</> (Tom)
</para>
<para>
- This flag can now be used even with <acronym>PITR</>. It is turned on
- automatically between <function>pg_start_backup()</> and <function>pg_stop_backup()</> calls.
+ This flag can now be used even with <acronym>PITR</>. It
+ is turned on automatically between <function>pg_start_backup()</>
+ and <function>pg_stop_backup()</> calls.
</para>
</listitem>
<listitem>
<para>
- Add support for <acronym>SSL</> Certificate Revocation List (<acronym>CRL</>) files, <filename>root.crl</>
- (Libor Hohoš)
+ Add support for <acronym>SSL</> Certificate Revocation List
+ (<acronym>CRL</>) files, <filename>root.crl</> (Libor
+ Hohoš)
</para>
<para>
-
This was added to <application>libpq</> as well.
+ This was added to <application>libpq</> as well.
</para>
</listitem>
<listitem>
<para>
- Remove routine autovacuum server log entries (Bruce)
+ Remove routine autovacuum server log entries (Bruce)
</para>
<para>
- <literal>pg_stat_activity</> now shows autovacuum activity.
+ <literal>pg_stat_activity</> now shows autovacuum activity.
</para>
</listitem>
<listitem>
<para>
- Add <literal>GRANT CONNECT ON DATABASE</>, to be used in addition to <filename>pg_hba.conf</>
- (Gevik Babakhani)
+ Add <literal>GRANT CONNECT ON DATABASE</>, to be used in
+ addition to <filename>pg_hba.conf</> (Gevik Babakhani)
</para>
<para>
- This gives SQL-control over database access, and works in combination
- with the existing <filename>pg_hba.conf</> controls.
+ This gives SQL-control over database access, and works in
+ combination with the existing <filename>pg_hba.conf</>
+ controls.
</para>
</listitem>
<listitem>
<para>
- Add last vacuum and analyze timestamp columns to the stats collector (Larry
- Rosenman)
+ Add last vacuum and analyze timestamp columns to the stats
+ collector (Larry Rosenman)
</para>
<para>
- These values now appear in the <literal>pg_stat_*_tables</> system views, and are used
- by autovacuum. ?
+ These values now appear in the <literal>pg_stat_*_tables</>
+ system views, and are used by autovacuum. ?
</para>
</listitem>
<listitem>
<para>
-
Deprecate use of <application>postmaster</> symlink (Peter)
+ Deprecate use of <application>postmaster</> symlink (Peter)
</para>
<para>
- <application>postmaster</> and <application>postgres</> commands now act identically, with the behavior
- determined by switches. The <application>postmaster</> symlink is kept for
- compatibility, but is not really needed.
+ <application>postmaster</> and <application>postgres</>
+ commands now act identically, with the behavior determined
+ by switches. The <application>postmaster</> symlink is
+ kept for compatibility, but is not really needed.
</para>
</listitem>
<listitem>
<para>
- Add <acronym>GUC</> <envar>update_process_title</> to control whether the <application>ps</> display is
- updated for every command, default to <literal>on</> (Bruce)
+ Add <acronym>GUC</> <envar>update_process_title</> to
+ control whether the <application>ps</> display is updated
+ for every command, default to <literal>on</> (Bruce)
</para>
</listitem>
<listitem>
<para>
- Track tables needing vacuum with more accuracy (Alvaro)
+ Track tables needing vacuum with more accuracy (Alvaro)
</para>
<para>
- This reduces the overhead involved in preventing transaction ID
- wraparound.
+ This reduces the overhead involved in preventing transaction
+ ID wraparound.
</para>
</listitem>
<listitem>
<para>
- Allow units to be specified in configuration settings (Peter)
+ Allow units to be specified in configuration settings
+ (Peter)
</para>
<para>
- You can now set <envar>shared_buffer</> to <literal>32000kB</>, for example.
+ You can now set <envar>shared_buffer</> to <literal>32000kB</>,
+ for example.
</para>
</listitem>
<listitem>
<para>
- Improve logging of protocol-level prepare/bind/execute messages (Bruce, Tom)
+ Improve logging of protocol-level prepare/bind/execute
+ messages (Bruce, Tom)
</para>
<para>
- Such logging now shows statement names, bind parameter values, and the
- text of the query being executed.
+ Such logging now shows statement names, bind parameter
+ values, and the text of the query being executed.
</para>
</listitem>
<listitem>
<para>
- Change <envar>log_duration</> to output even if the query is not output (Tom)
+ Change <envar>log_duration</> to output even if the query
+ is not output (Tom)
</para>
<para>
- In prior releases, <envar>log_duration</> only printed if the query appeared
- earlier in the logs.
+ In prior releases, <envar>log_duration</> only printed if
+ the query appeared earlier in the logs.
</para>
</listitem>
<listitem>
<para>
- Allow a forced switch to a new xlog file (Simon Riggs, Tom)
+ Allow a forced switch to a new xlog file (Simon Riggs, Tom)
</para>
<para>
- This is valuable for keeping <acronym>PITR</> standby servers in sync with the master.
- xlog file switching also happens automatically during <function>pg_stop_backup()</>.
- This ensures that <acronym>PITR</> servers have all xlog files needed
- for recovery.
+ This is valuable for keeping <acronym>PITR</> standby
+ servers in sync with the master. xlog file switching also
+ happens automatically during <function>pg_stop_backup()</>.
+ This ensures that <acronym>PITR</> servers have all xlog
+ files needed for recovery.
</para>
</listitem>
<listitem>
<para>
-
Add <acronym>WAL</> informational functions (Simon Riggs)
+ Add <acronym>WAL</> informational functions (Simon Riggs)
</para>
<para>
- Add functions for interrogating the current xlog insertion point and
- determining <acronym>WAL</> filenames from the hex <acronym>WAL</> locations displayed by
- <function>pg_stop_backup()</> and friends.
+ Add functions for interrogating the current xlog insertion
+ point and determining <acronym>WAL</> filenames from the
+ hex <acronym>WAL</> locations displayed by
+ <function>pg_stop_backup()</> and friends.
</para>
</listitem>
<listitem>
<para>
- Allow <acronym>WAL</> replay to be restored quicker in case of a crash (Simon Riggs)
+ Allow <acronym>WAL</> replay to be restored quicker in case
+ of a crash (Simon Riggs)
</para>
<para>
- The server now does periodic checkpoints during <acronym>WAL</> recovery, so
- if there is a crash, future <acronym>WAL</> recovery is shortened. This also eliminates
- the need for <acronym>PITR</> standby servers to replay the entire log since the base
- backup if they crash.
+ The server now does periodic checkpoints during <acronym>WAL</>
+ recovery, so if there is a crash, future <acronym>WAL</>
+ recovery is shortened. This also eliminates the need for
+ <acronym>PITR</> standby servers to replay the entire log
+ since the base backup if they crash.
</para>
</listitem>
<listitem>
<para>
- Add <envar>archive_timeout</> to force xlog file switches at a given interval (Simon Riggs)
+ Add <envar>archive_timeout</> to force xlog file switches
+ at a given interval (Simon Riggs)
</para>
<para>
- This enforces a maximum delay for <acronym>PITR</> standby servers.
+ This enforces a maximum delay for <acronym>PITR</> standby
+ servers.
</para>
</listitem>
<listitem>
<para>
- Add a <literal>waiting</> column to <literal>pg_stat_activity</> (Tom)
+ Add a <literal>waiting</> column to <literal>pg_stat_activity</>
+ (Tom)
</para>
<para>
- This allows <literal>pg_stat_activity</> to show the same information as the <literal>ps</>
- display.
+ This allows <literal>pg_stat_activity</> to show the same
+ information as the <literal>ps</> display.
</para>
</sect3>
<listitem>
<para>
- Support portal parameters in <command>EXPLAIN</> and <command>EXECUTE</> (Tom)
+ Support portal parameters in <command>EXPLAIN</> and
+ <command>EXECUTE</> (Tom)
</para>
<para>
- This allows, for example, <literal>?</> parameters to work in these commands in
- <acronym>JDBC</>.
+ This allows, for example, <literal>?</> parameters to work
+
in these commands in <acronym>JDBC</>.
</para>
</listitem>
<listitem>
<para>
- Add <literal>IS NOT DISTINCT FROM</> (Pavel Stehule)
+ Add <literal>IS NOT DISTINCT FROM</> (Pavel Stehule)
</para>
<para>
- It is similar to equals (<literal>=</>), but is true when both left and right arguments
- are <literal>NULL</>, and false when just one is, rather than yielding <literal>NULL</> in these cases.
+ It is similar to equals (<literal>=</>), but is true when
+ both left and right arguments are <literal>NULL</>, and
+ false when just one is, rather than yielding <literal>NULL</>
+ in these cases.
</para>
</listitem>
<listitem>
<para>
- Make row comparisons follow <acronym>SQL</> standard semantics and allow them to be
- used in index scans (Tom)
+ Make row comparisons follow <acronym>SQL</> standard
+ semantics and allow them to be used in index scans (Tom)
</para>
<para>
- Previously, row = and <> comparisons followed the standard but <
- <= > >= did not. A row comparison can now be used as an index
- constraint for a multicolumn index matching the row value.
+ Previously, row = and <> comparisons followed the
+ standard but < <= > >= did not. A row comparison
+ can now be used as an index constraint for a multicolumn
+ index matching the row value.
</para>
</listitem>
<listitem>
<para>
- Allow additional row values comparison (Tom)
+ Allow additional row values comparison (Tom)
</para>
<para>
- Add <, <=, >, >=.
+ Add <, <=, >, >=.
</para>
</listitem>
<listitem>
<para>
- Add system view <literal>pg_prepared_statements</> to show prepared statements (Joachim
- Wieland)
+ Add system view <literal>pg_prepared_statements</> to show
+ prepared statements (Joachim Wieland)
</para>
</listitem>
<listitem>
<para>
- Add system view <literal>pg_cursors</> to show open cursors (Joachim Wieland)
+ Add system view <literal>pg_cursors</> to show open cursors
+ (Joachim Wieland)
</para>
<para>
- Both this and <literal>pg_prepared_statements</> are very useful for pooled
- connection setups.
+ Both this and <literal>pg_prepared_statements</> are very
+ useful for pooled connection setups.
</para>
</listitem>
<listitem>
<para>
- If <acronym>SQL</>-level <command>PREPARE</> parameters are unknown, infer their types from the
- context of the query (Neil)
+ If <acronym>SQL</>-level <command>PREPARE</> parameters
+ are unknown, infer their types from the context of the
+ query (Neil)
</para>
<para>
- Protocol-level <command>PREPARE</> already did this.
+ Protocol-level <command>PREPARE</> already did this.
</para>
</listitem>
<listitem>
<para>
- Allow <command>UPDATE</> and <command>DELETE</> to use an alias for the target table (Atsushi Ogawa)
+ Allow <command>UPDATE</> and <command>DELETE</> to use an
+ alias for the target table (Atsushi Ogawa)
</para>
<para>
- This allows these statements to support self-joins more conveniently.
- <command>UPDATE</> already supported as <literal>FROM</> clause, but <command>DELETE</> did not.
+ This allows these statements to support self-joins more
+ conveniently. <command>UPDATE</> already supported as
+ <literal>FROM</> clause, but <command>DELETE</> did not.
</para>
</listitem>
<listitem>
<para>
- Add <literal>CASCADE</> option to <command>TRUNCATE</> (Joachim Wieland)
+ Add <literal>CASCADE</> option to <command>TRUNCATE</>
+ (Joachim Wieland)
</para>
<para>
- This allows <command>TRUNCATE</> also to automatically truncate all foreign-key
- referencing tables.
+ This allows <command>TRUNCATE</> also to automatically
+ truncate all foreign-key referencing tables.
</para>
</listitem>
<listitem>
<para>
- Enable <envar>standard_conforming_strings</> to be turned on (Kevin Grittner)
+ Enable <envar>standard_conforming_strings</> to be turned
+ <literal>on</> (Kevin Grittner)
</para>
<para>
- This allow special backslash escaping in strings to be turned off
- so <productname>PostgreSQL</> is more standards-compliant. The default is <literal>off</>,
- but future releases will default this to <literal>on</>.
+ This allow special backslash escaping in strings to be
+ turned off so <productname>PostgreSQL</> is more
+ standards-compliant. The default is <literal>off</>, but
+ future releases will default this to <literal>on</>.
</para>
</listitem>
<listitem>
<para>
- Set <envar>escape_string_warning</> to <literal>on</> by default (Bruce)
+ Set <envar>escape_string_warning</> to <literal>on</> by
+ default (Bruce)
</para>
<para>
- This issues a warning if backslash escapes are used in non-escape
- (non-<literal>E''</>) strings.
+ This issues a warning if backslash escapes are used in
+ non-escape (non-<literal>E''</>) strings.
</para>
</listitem>
<listitem>
<para>
- Support <literal>FOR UPDATE</> and <literal>FOR SHARE</> in the same command (Tom)
+ Support <literal>FOR UPDATE</> and <literal>FOR SHARE</>
+ in the same command (Tom)
</para>
</listitem>
<listitem>
<para>
- Disallow aggregate functions in <command>UPDATE</> commands (unless within a
- subquery) (Tom)
+ Disallow aggregate functions in <command>UPDATE</> commands
+ (unless within a subquery) (Tom)
</para>
<para>
- The standard disallows this, and it leads to unpredictable results.
+ The standard disallows this, and it leads to unpredictable
+ results.
</para>
</listitem>
<listitem>
<para>
- Change the row constructor syntax (<literal>ROW(...)</>) so that list elements <literal>foo.*</>
- will be expanded to a list of their member fields, rather than creating
- a nested rowtype field as formerly (Tom)
+ Change the row constructor syntax (<literal>ROW(...)</>)
+ so that list elements <literal>foo.*</> will be expanded
+ to a list of their member fields, rather than creating a
+ nested rowtype field as formerly (Tom)
</para>
<para>
- The new behavior is substantially more useful since it allows, for example,
- triggers to check for data changes with <literal>IF row(new.*) IS DISTINCT FROM row(old.*)</>.
- The old behavior is still available by omitting <literal>.*</>.
+ The new behavior is substantially more useful since it
+ allows, for example, triggers to check for data changes
+ with <literal>IF row(new.*) IS DISTINCT FROM row(old.*)</>.
+ The old behavior is still available by omitting <literal>.*</>.
</para>
</listitem>
<listitem>
<para>
- Change <literal>LIMIT</>/<literal>OFFSET</> to use <type>int8</> (Dhanaraj M)
+ Change <literal>LIMIT</>/<literal>OFFSET</> to use
+ <type>int8</> (Dhanaraj M)
</para>
<para>
- This allows <literal>LIMIT</>/<literal>OFFSET</> over two-billion.
+ This allows <literal>LIMIT</>/<literal>OFFSET</> over
+ two-billion.
</para>
</listitem>
<listitem>
<para>
- Add support for multi-row <literal>VALUES</> clauses as part of <command>INSERT</> and <command>SELECT</> statements
- (Joe, Tom)
+ Add support for multi-row <literal>VALUES</> clauses as
+ part of <command>INSERT</> and <command>SELECT</> statements
+ (Joe, Tom)
</para>
<para>
- This allows <command>INSERT</> to insert multiple rows of constants, or queries
- to generate result sets using constants. For example, <literal>INSERT ...
- VALUES (...), (...), ....</>, and <literal>SELECT * FROM (VALUES (...),
- (...), ....) AS alias(f1, ...)</>.
+ This allows <command>INSERT</> to insert multiple rows of
+ constants, or queries to generate result sets using constants.
+ For example, <literal>INSERT ... VALUES (...), (...),
+ ....</>, and <literal>SELECT * FROM (VALUES (...), (...),
+ ....) AS alias(f1, ...)</>.
</para>
</listitem>
<listitem>
<para>
- Improve the length output used by <literal>UNION</>/<literal>INTERSECT</>/<literal>EXCEPT</> (Tom)
+ Improve the length output used by
+ <literal>UNION</>/<literal>INTERSECT</>/<literal>EXCEPT</>
+ (Tom)
</para>
<para>
- When all columns are of the same defined length, that length is used
- for output, rather than a generic length.
+ When all columns are of the same defined length, that length
+ is used for output, rather than a generic length.
</para>
</listitem>
<listitem>
<para>
- Add <command>INSERT</>/<command>UPDATE</>/<command>DELETE</> <literal>RETURNING</> (Jonah Harris, Tom)
+ Add <command>INSERT</>/<command>UPDATE</>/<command>DELETE</>
+ <literal>RETURNING</> (Jonah Harris, Tom)
</para>
<para>
- This allows these commands to return values, such as the computed serial
- key for a new row. In the <command>UPDATE</> case, values from the new state of the
- row are returned.
+ This allows these commands to return values, such as the
+ computed serial key for a new row. In the <command>UPDATE</>
+ case, values from the new state of the row are returned.
</para>
</listitem>
<listitem>
<para>
- Allow <command>UPDATE</> to set multiple columns with a list of values (Susanne
- Ebrecht)
+ Allow <command>UPDATE</> to set multiple columns with a
+ list of values (Susanne Ebrecht)
</para>
<para>
- This is basically as short-hand for assigning the columns and values
- in pairs. The syntax is <literal>UPDATE tab SET (col, ...) = (val, ...)</>.
+ This is basically as short-hand for assigning the columns
+ and values in pairs. The syntax is <literal>UPDATE tab
+ SET (col, ...) = (val, ...)</>.
</para>
</listitem>
<listitem>
<para>
- Allow <literal>ILIKE</> to work for multi-byte encodings (Tom)
+ Allow <literal>ILIKE</> to work for multi-byte encodings
+ (Tom)
</para>
<para>
- Internally, <literal>ILIKE</> now calls <function>lower()</> and then uses <literal>LIKE</>. Locale-specific
- regular expression operations still do not work in these encodings.
+ Internally, <literal>ILIKE</> now calls <function>lower()</>
+ and then uses <literal>LIKE</>. Locale-specific regular
+ expression operations still do not work in these encodings.
</para>
</listitem>
<listitem>
<para>
- Protocol-level unnamed prepared statements are re-planned for each
- set of <literal>BIND</> values (Tom)
+ Protocol-level unnamed prepared statements are re-planned
+ for each set of <literal>BIND</> values (Tom)
</para>
<para>
- This improves performance because the exact parameter values can be used
- in the plan.
+ This improves performance because the exact parameter values
+ can be used in the plan.
</para>
</listitem>
<listitem>
<para>
- Do not flatten subqueries that contain <literal>VOLATILE</> functions in their
- target lists (Jaime Casanova)
+ Do not flatten subqueries that contain <literal>VOLATILE</>
+ functions in their target lists (Jaime Casanova)
</para>
<para>
- This prevents surprising behavior due to multiple evaluation of a <literal>volatile</>
- function (such as <function>random()</> or <function>nextval()</>). It may cause performance
- degradation in the presence of functions that are unnecessarily marked as
- <literal>volatile</>.
+ This prevents surprising behavior due to multiple evaluation
+ of a <literal>volatile</> function (such as <function>random()</>
+ or <function>nextval()</>). It may cause performance
+ degradation in the presence of functions that are unnecessarily
+ marked as <literal>volatile</>.
</para>
</sect3>
<listitem>
<para>
- Add <command>DROP</> object <literal>IF EXISTS</> for many object types (Andrew)
+ Add <command>DROP</> object <literal>IF EXISTS</> for many
+ object types (Andrew)
</para>
<para>
- This allows <command>DROP</> operations on non-existent objects without generating
- an error.
+ This allows <command>DROP</> operations on non-existent
+ objects without generating an error.
</para>
</listitem>
<listitem>
<para>
- Add <literal>DROP OWNED</> to drop all objects owned by a role (Alvaro)
+ Add <literal>DROP OWNED</> to drop all objects owned by a
+ role (Alvaro)
</para>
</listitem>
<listitem>
<para>
- Add <literal>REASSIGN OWNED</> to reassign ownership of all objects owned by a role
- (Alvaro)
+ Add <literal>REASSIGN OWNED</> to reassign ownership of
+ all objects owned by a role (Alvaro)
</para>
<para>
- This, and <literal>DROP OWNED</> above, facilitate dropping roles.
+ This, and <literal>DROP OWNED</> above, facilitate dropping
+ roles.
</para>
</listitem>
<listitem>
<para>
- Add <command>CREATE</>/<command>ALTER ROLE PASSWORD NULL</>, which removes the role's password
- (Peter)
+ Add <command>CREATE</>/<command>ALTER ROLE PASSWORD NULL</>,
+ which removes the role's password (Peter)
</para>
</listitem>
<listitem>
<para>
- Properly enforce <literal>DOMAIN</> check constraints everywhere (Neil, Tom)
+ Properly enforce <literal>DOMAIN</> check constraints
+ everywhere (Neil, Tom)
</para>
<para>
- For example, the result of a user-defined function that is declared
- to return a domain type is now checked against the constraints.
+ For example, the result of a user-defined function that is
+ declared to return a domain type is now checked against
+ the constraints.
</para>
</listitem>
<listitem>
<para>
- Add <command>GRANT ON SEQUENCE</> syntax (Bruce)
+ Add <command>GRANT ON SEQUENCE</> syntax (Bruce)
</para>
<para>
- This was added for setting sequence-specific permissions. <literal>GRANT ON [TABLE]</>
- for sequences is still supported for backward compatibility.
+ This was added for setting sequence-specific permissions.
+ <literal>GRANT ON [TABLE]</> for sequences is still supported
+ for backward compatibility.
</para>
</listitem>
<listitem>
<para>
- Add <literal>USAGE</> permission for sequences that allows only <function>currval()</> and
- <function>nextval()</>, not <function>setval()</> (Bruce)
+ Add <literal>USAGE</> permission for sequences that allows
+ only <function>currval()</> and <function>nextval()</>,
+ not <function>setval()</> (Bruce)
</para>
<para>
- <literal>USAGE</> permission allows more find-grained control over sequence access.
- It allows users to increment a sequence, but prevents them from
- setting the sequence to an arbitrary value using <function>setval()</>.
+ <literal>USAGE</> permission allows more find-grained
+ control over sequence access. It allows users to increment
+ a sequence, but prevents them from setting the sequence to
+ an arbitrary value using <function>setval()</>.
</para>
</listitem>
<listitem>
<para>
- Allow comments on global objects to be stored globally (Kris Jurka)
+ Allow comments on global objects to be stored globally
+ (Kris Jurka)
</para>
<para>
- Previously, global object comments were stored in individual
- databases, making them ineffective. This adds a new <literal>pg_shdescription</>
- table.
+ Previously, global object comments were stored in individual
+ databases, making them ineffective. This adds a new
+ <literal>pg_shdescription</> table.
</para>
</listitem>
<listitem>
<para>
- Add <literal>ON COMMIT</> clauses to <command>CREATE TABLE AS</> (Neil)
+ Add <literal>ON COMMIT</> clauses to <command>CREATE TABLE
+ AS</> (Neil)
</para>
<para>
- This allows temporary tables to be truncated or dropped on transaction
- commit. The default behavior is for the table to remain until the
- session ends.
+ This allows temporary tables to be truncated or dropped on
+ transaction commit. The default behavior is for the table
+ to remain until the session ends.
</para>
</listitem>
<listitem>
<para>
- Add <literal>TABLESPACE</> and <literal>ON COMMIT</> clauses to <command>CREATE TABLE AS</> (Neil)
+ Add <literal>TABLESPACE</> and <literal>ON COMMIT</> clauses
+ to <command>CREATE TABLE AS</> (Neil)
</para>
<para>
- This allows the tablespace to be specified for the new table.
+ This allows the tablespace to be specified for the new
+ table.
</para>
</listitem>
<listitem>
<para>
- Allow placeholder (shell) types to be created (Martijn van Oosterhout)
+ Allow placeholder (shell) types to be created (Martijn van
+ Oosterhout)
</para>
<para>
- Shell types create a type reference, without specifying any of the
- aspects of the type. It is useful for creating types with input/output
- functions that reference the data type. The syntax is <command>CREATE TYPE typname</>.
+ Shell types create a type reference, without specifying
+ any of the aspects of the type. It is useful for creating
+ types with input/output functions that reference the data
+ type. The syntax is <command>CREATE TYPE typname</>.
</para>
</listitem>
<listitem>
<para>
- Add new aggregate creation syntax (Tom)
+ Add new aggregate creation syntax (Tom)
</para>
<para>
- The new syntax is <command>CREATE AGGREGATE</> aggname (input_type) (parameter_list).
- This more naturally supports the new multi-parameter aggregate
- functionality. The previous syntax is still supported.
+ The new syntax is <command>CREATE AGGREGATE</> aggname
+ (input_type) (parameter_list). This more naturally supports
+ the new multi-parameter aggregate functionality. The
+ previous syntax is still supported.
</para>
</listitem>
<listitem>
<para>
- Aggregate functions now support multiple input parameters (Sergey
- Koposov, Tom)
+ Aggregate functions now support multiple input parameters
+ (Sergey Koposov, Tom)
</para>
</listitem>
<listitem>
<para>
- Have <command>SET CONSTRAINT</> affect only one constraint (Kris Jurka)
+ Have <command>SET CONSTRAINT</> affect only one constraint
+ (Kris Jurka)
</para>
<para>
- In previous releases, <command>SET CONSTRAINT</> modified all constraints with
- a matching name. In this release, the schema search path is used to
- modify only the first matching constraint. A schema specification is
- also supported.
+ In previous releases, <command>SET CONSTRAINT</> modified
+ all constraints with a matching name. In this release,
+ the schema search path is used to modify only the first
+ matching constraint. A schema specification is also
+ supported.
</para>
</listitem>
<listitem>
<para>
- Add <literal>INCLUDING CONSTRAINTS</> to <command>CREATE TABLE LIKE</> (Greg Stark)
+ Add <literal>INCLUDING CONSTRAINTS</> to <command>CREATE
+ TABLE LIKE</> (Greg Stark)
</para>
<para>
- This allows the new table to receive matching constraints.
+ This allows the new table to receive matching constraints.
</para>
</listitem>
<listitem>
<para>
- Add <literal>ALTER TABLE ... [NO] INHERIT</> (Greg Stark)
+ Add <literal>ALTER TABLE ... [NO] INHERIT</> (Greg Stark)
</para>
<para>
- This allow inheritance to be added and removed dynamically, rather
- than just at table creation and destruction. This is very valuable
- for table partitioning using constraint exclusion.
+ This allow inheritance to be added and removed dynamically,
+ rather than just at table creation and destruction. This
+ is very valuable for table partitioning using constraint
+ exclusion.
</para>
</listitem>
<listitem>
<para>
- Remove rule permission for tables, for security reasons (Tom)
+ Remove rule permission for tables, for security reasons
+ (Tom)
</para>
<para>
- In this release, only a table's owner can create or modify rules
- for the table. For backwards compatibility, <command>GRANT</>/<command>REVOKE RULE</> is still
- accepted, but it does nothing.
+ In this release, only a table's owner can create or modify
+ rules for the table. For backwards compatibility,
+ <command>GRANT</>/<command>REVOKE RULE</> is still accepted,
+ but it does nothing.
</para>
</sect3>
<listitem>
<para>
- Reduce progress messages displayed by initdb (Tom)
+ Reduce progress messages displayed by initdb (Tom)
</para>
</listitem>
<listitem>
<para>
- Have initdb detect the operating system locale and set the default
- <envar>DateStyle</> accordingly (Peter)
+ Have initdb detect the operating system locale and set the
+ default <envar>DateStyle</> accordingly (Peter)
</para>
<para>
- This make it more likely that the installed <filename>postgresql.conf</> <envar>DateStyle</>
- value will be correct.
+ This make it more likely that the installed
+ <filename>postgresql.conf</> <envar>DateStyle</> value will
+ be correct.
</para>
</listitem>
<listitem>
<para>
- Have the <command>COPY</> command return a command tag that includes the number of
- rows copied (Volkan Yazıcı)
+ Have the <command>COPY</> command return a command tag that
+ includes the number of rows copied (Volkan Yazıcı)
</para>
</listitem>
<listitem>
<para>
- Allow <command>VACUUM</> to expire rows without being affected by other concurrent
- <command>VACUUM</>s (Hannu Krossing, Alvaro, Tom)
+ Allow <command>VACUUM</> to expire rows without being
+ affected by other concurrent <command>VACUUM</>s (Hannu
+ Krossing, Alvaro, Tom)
</para>
</listitem>
<listitem>
<para>
- Avoid extra scan of tables during <command>VACUUM</> of index-less table (Greg Stark)
+ Avoid extra scan of tables during <command>VACUUM</> of
+ index-less table (Greg Stark)
</para>
</listitem>
<listitem>
<para>
- Add option to allow indexes to be created without blocking
- concurrent writes to the table (Greg Stark)
+ Add option to allow indexes to be created without blocking
+ concurrent writes to the table (Greg Stark)
</para>
<para>
- The new syntax is <command>CREATE INDEX CONCURRENTLY</>. The default behavior is
- still to block table modification while a index is being created.
+ The new syntax is <command>CREATE INDEX CONCURRENTLY</>.
+ The default behavior is still to block table modification
+ while a index is being created.
</para>
</listitem>
<listitem>
<para>
- Allow <command>COPY</> to dump a <command>SELECT</> query (Zoltan Boszormenyi, Karel Zak)
+ Allow <command>COPY</> to dump a <command>SELECT</> query
+ (Zoltan Boszormenyi, Karel Zak)
</para>
<para>
- This allows <command>COPY</> to dump arbitrary <acronym>SQL</> queries. The syntax is
- <literal>COPY (SELECT ...) TO</>.
+ This allows <command>COPY</> to dump arbitrary <acronym>SQL</>
+ queries. The syntax is <literal>COPY (SELECT ...) TO</>.
</para>
</sect3>
<listitem>
<para>
- Allow arrays to contain <literal>NULL</> elements (Tom)
+ Allow arrays to contain <literal>NULL</> elements (Tom)
</para>
</listitem>
<listitem>
<para>
- Change array concatenation to match documented behavior (Tom)
+ Change array concatenation to match documented behavior
+ (Tom)
</para>
<para>
- This changes the previous behavior where concatenation would
- adjust the lower array dimensions.
+ This changes the previous behavior where concatenation
+ would adjust the lower array dimensions.
</para>
</listitem>
<listitem>
<para>
- Array comparison improvements (Tom)
+ Array comparison improvements (Tom)
</para>
<para>
- Now array dimensions are also compared.
+ Now array dimensions are also compared.
</para>
</listitem>
<listitem>
<para>
- Allow <function>to_char(time)</> and <function>to_char(interval)</> to output <acronym>AM</>/<acronym>PM</> specifications
- (Bruce)
+ Allow <function>to_char(time)</> and <function>to_char(interval)</>
+ to output <acronym>AM</>/<acronym>PM</> specifications
+ (Bruce)
</para>
<para>
- Intervals and times are treated as 24-hour periods, e.g. <literal>25 hours</> is
- <acronym>AM</>.
+ Intervals and times are treated as 24-hour periods, e.g.
+
<literal>25 hours</> is <acronym>AM</>.
</para>
</listitem>
<listitem>
<para>
- Have <function>to_char(time)</> and <function>to_char(interval)</> treat <literal>'HH'</> and <literal>'HH12'</> as 12-hour
- intervals.
+ Have <function>to_char(time)</> and <function>to_char(interval)</>
+ treat <literal>'HH'</> and <literal>'HH12'</> as 12-hour
+ intervals.
<para>
- Most applications should use <literal>'HH24'</> unless they want a 12-hour display.
+ Most applications should use <literal>'HH24'</> unless they
+ want a 12-hour display.
</para>
</listitem>
<listitem>
<para>
- Add a server-side sleep function <function>pg_sleep()</> (Joachim Wieland)
+ Add a server-side sleep function <function>pg_sleep()</>
+ (Joachim Wieland)
</para>
</listitem>
<listitem>
<para>
- Zero unmasked bits in conversion from <type>INET</> to <type>CIDR</> (Tom)
+ Zero unmasked bits in conversion from <type>INET</> to
+ <type>CIDR</> (Tom)
</para>
</listitem>
<listitem>
<para>
- Add convenient arithmetic operations on <type>INET</>/<type>CIDR</> values (Stephen R. van
- den Berg)
+ Add convenient arithmetic operations on <type>INET</>/<type>CIDR</>
+ values (Stephen R. van den Berg)
</para>
<para>
- The new operators are <literal>&</> (and), <literal>|</> (or), <literal>~</> (not), <literal>+</> <type>int8</>,
- <literal>-</> <type>int8</>, and <type>inet</> <literal>-</> <type>inet</>.
+ The new operators are <literal>&</> (and), <literal>|</>
+ (or), <literal>~</> (not), <literal>+</> <type>int8</>,
+ <literal>-</> <type>int8</>, and <type>inet</> <literal>-</>
+ <type>inet</>.
</para>
</listitem>
<listitem>
<para>
- Allow <function>to_char()</> to print localized month and day names (Euler Taveira de
- Oliveira)
+ Allow <function>to_char()</> to print localized month and
+ day names (Euler Taveira de Oliveira)
</para>
</listitem>
<listitem>
<para>
- Add all comparison operators for the <type>tid</> data type (Mark Kirkwood, Greg Stark,
- Tom)
+ Add all comparison operators for the <type>tid</> data type
+ (Mark Kirkwood, Greg Stark, Tom)
</para>
</listitem>
<listitem>
<para>
- Add new function <function>justify_interval()</> to adjust interval units (Mark Dilger)
+ Add new function <function>justify_interval()</> to adjust
+ interval units (Mark Dilger)
</para>
</listitem>
<listitem>
<para>
- Add new aggregate functions from SQL2003 (Neil)
+ Add new aggregate functions from SQL2003 (Neil)
</para>
<para>
- The new functions are <function>var_pop()</>, <function>var_samp()</>, <function>stddev_pop()</>, and <function>stddev_samp()</>.
- <function>var_samp()</> and <function>stddev_samp()</> are merely renamings of the existing
- aggregates <function>variance()</> and <function>stddev()</>. The latter names have been
- kept for backward compatibility.
+ The new functions are <function>var_pop()</>,
+ <function>var_samp()</>, <function>stddev_pop()</>, and
+ <function>stddev_samp()</>. <function>var_samp()</> and
+ <function>stddev_samp()</> are merely renamings of the
+ existing aggregates <function>variance()</> and
+ <function>stddev()</>. The latter names have been kept
+ for backward compatibility.
</para>
</listitem>
<listitem>
<para>
- New operators for array-subset comparisons (<literal>@></>, <literal><@</>, <literal>&&</>) (Teodor,
-Tom)
+ New operators for array-subset comparisons (<literal>@></>,
+ <literal><@</>, <literal>&&</>) (Teodor, Tom)
</para>
<para>
- The old operators were kept for backward compatibility.
+ The old operators were kept for backward compatibility.
</para>
</listitem>
<listitem>
<para>
- Allow domains to be created using other domains (Tom)
+ Allow domains to be created using other domains (Tom)
</para>
</listitem>
<listitem>
<para>
- Add <function>clock_timestamp()</>, <function>statement_timestamp()</>, and <function>transaction_timestamp()</>
- (Bruce)
+ Add <function>clock_timestamp()</>,
+ <function>statement_timestamp()</>, and
+ <function>transaction_timestamp()</> (Bruce)
</para>
<para>
- <function>clock_timestamp()</> is the true current time, and <function>statement_timestamp()</> is the
- time the current command arrived at the server. <function>transaction_timestamp()</> is
- the same as <function>now()</>.
+ <function>clock_timestamp()</> is the true current time,
+ and <function>statement_timestamp()</> is the time the
+ current command arrived at the server.
+ <function>transaction_timestamp()</> is the same as
+ <function>now()</>.
</para>
</listitem>
<listitem>
<para>
- Allow full timezone names in <type>timestamp</> values (Joachim Wieland)
+ Allow full timezone names in <type>timestamp</> values
+ (Joachim Wieland)
</para>
<para>
- For example, <literal>'2006-05-24 21:11 America/New_York'::timestamptz</>.
+ For example, <literal>'2006-05-24 21:11
+ America/New_York'::timestamptz</>.
</para>
</listitem>
<listitem>
<para>
- Create a configuration file of timezone abbreviations (Joachim Wieland)
+ Create a configuration file of timezone abbreviations
+ (Joachim Wieland)
</para>
<para>
- The file name is controlled by GUC variable <envar>timezone_abbreviations</>.
+ The file name is controlled by GUC variable
+ <envar>timezone_abbreviations</>.
</para>
</listitem>
<listitem>
<para>
- Remove <envar>australian_timezones</> configuration variable (Joachim Wieland)
+ Remove <envar>australian_timezones</> configuration variable
+ (Joachim Wieland)
</para>
<para>
- No longer needed now that timezone abbreviations are configurable.
+ No longer needed now that timezone abbreviations are
+ configurable.
</para>
</listitem>
<listitem>
<para>
- Add <envar>pg_timezone_abbrevs</> and <envar>pg_timezone_names</> views to show
- supported timezones (Magnus Hagander)
+ Add <envar>pg_timezone_abbrevs</> and <envar>pg_timezone_names</>
+ views to show supported timezones (Magnus Hagander)
</para>
</listitem>
<listitem>
<para>
- Add SQL2003-standard statistical aggregates (Sergey Koposov)
+ Add SQL2003-standard statistical aggregates (Sergey Koposov)
</para>
<para>
- New functions: <function>regr_intercept()</>, <function>regr_slope()</>, <function>regr_r2()</>, <function>corr()</>,
- <function>covar_samp()</>, <function>covar_pop()</>, <function>regr_avgx()</>, <function>regr_avgy()</>, <function>regr_sxy()</>,
- <function>regr_sxx()</>, <function>regr_syy()</>, <function>regr_count()</>
+ New functions: <function>regr_intercept()</>,
+ <function>regr_slope()</>, <function>regr_r2()</>,
+ <function>corr()</>, <function>covar_samp()</>,
+ <function>covar_pop()</>, <function>regr_avgx()</>,
+ <function>regr_avgy()</>, <function>regr_sxy()</>,
+ <function>regr_sxx()</>, <function>regr_syy()</>,
+ <function>regr_count()</>
</para>
</listitem>
<listitem>
<para>
- Fix problems with dumping renamed <type>SERIAL</> columns (Tom)
+ Fix problems with dumping renamed <type>SERIAL</> columns
+ (Tom)
</para>
<para>
- The fix is to dump a <type>SERIAL</> column by explicitly specifying its <literal>DEFAULT</> and
- sequence elements, and reconstructing the <type>SERIAL</> column on reload using a new
- <command>ALTER SEQUENCE OWNED BY</> command. This also allows dropping a <type>SERIAL</> column
- specification.
+ The fix is to dump a <type>SERIAL</> column by explicitly
+ specifying its <literal>DEFAULT</> and sequence elements,
+ and reconstructing the <type>SERIAL</> column on reload
+ using a new <command>ALTER SEQUENCE OWNED BY</> command.
+ This also allows dropping a <type>SERIAL</> column
+ specification.
</para>
</listitem>
<listitem>
<para>
- Interval computation improvements (Michael Glaesemann, Bruce)
+ Interval computation improvements (Michael Glaesemann,
+ Bruce)
</para>
</sect3>
<listitem>
<para>
- Allow <literal>FOR</> statements to return values to scalars as well as
- records and row types (Pavel Stehule)
+ Allow <literal>FOR</> statements to return values to scalars
+ as well as records and row types (Pavel Stehule)
</para>
</listitem>
<listitem>
<para>
- Add a <literal>BY</> clause to the <literal>FOR</> loop, to control the iteration increment
- (Jaime Casanova)
+ Add a <literal>BY</> clause to the <literal>FOR</> loop,
+ to control the iteration increment (Jaime Casanova)
</para>
</listitem>
<listitem>
<para>
- Add <literal>table_name</> and <literal>table_schema</> as trigger data (Andrew)
+ Add <literal>table_name</> and <literal>table_schema</> as
+ trigger data (Andrew)
</para>
</listitem>
<listitem>
<para>
- Add <literal>STRICT</> to <command>SELECT INTO</> (Matt Miller)
+ Add <literal>STRICT</> to <command>SELECT INTO</> (Matt
+ Miller)
</para>
<para>
- <literal>STRICT</> mode throws an exception if more or less than
- one row is returned by the <command>SELECT</>, for <productname>Oracle PL/SQL</>
- compatibility.
+ <literal>STRICT</> mode throws an exception if more or less
+ than one row is returned by the <command>SELECT</>, for
+ <productname>Oracle PL/SQL</> compatibility.
</para>
</sect3>
<listitem>
<para>
- Honor <envar>check_function_bodies</> (Tom)
+ Honor <envar>check_function_bodies</> (Tom)
</para>
</listitem>
<listitem>
<para>
- Add prepared queries (Dmitry Karasik)
+ Add prepared queries (Dmitry Karasik)
</para>
</listitem>
<listitem>
<para>
- Add <literal>table_name</> and <literal>table_schema</> as trigger data (Adam Sjøgren)
+ Add <literal>table_name</> and <literal>table_schema</> as
+ trigger data (Adam Sjøgren)
</para>
<para>
- <literal>relname</> is kept but now deprecated
+ <literal>relname</> is kept but now deprecated
</para>
</listitem>
<listitem>
<para>
- Make <literal>$_TD</> trigger data a global variable (Andrew)
+ Make <literal>$_TD</> trigger data a global variable (Andrew)
</para>
<para>
- Previously, it was lexical, which caused unexpected sharing
- violations.
+ Previously, it was lexical, which caused unexpected sharing
+ violations.
</para>
</sect3>
<listitem>
<para>
- Allow functions to return <literal>void</> (Neil)
+ Allow functions to return <literal>void</> (Neil)
</para>
</listitem>
<listitem>
<para>
- Add named parameters to the <literal>args[]</> array (Sven Suursoho)
+ Add named parameters to the <literal>args[]</> array (Sven
+ Suursoho)
</para>
</listitem>
<listitem>
<para>
- Return composite-types as dictionary (Sven Suursoho)
+ Return composite-types as dictionary (Sven Suursoho)
</para>
</listitem>
<listitem>
<para>
- Return result-set as <literal>list</>, <literal>iterator</>, or <literal>generator </>(Sven Suursoho)
+ Return result-set as <literal>list</>, <literal>iterator</>,
+ or <literal>generator </>(Sven Suursoho)
</para>
</listitem>
<listitem>
<para>
- Allow returning of <literal>composite types</> and <literal>result sets</> (Sven Suursoho)
+ Allow returning of <literal>composite types</> and
+ <literal>result sets</> (Sven Suursoho)
</para>
</listitem>
<listitem>
<para>
- Add <literal>table_name</> and <literal>table_schema</> as trigger data (Andrew)
+ Add <literal>table_name</> and <literal>table_schema</> as
+ trigger data (Andrew)
</para>
</sect3>
<listitem>
<para>
- Add new command <literal>\password</> for changing role password with client-side
- password encryption (Peter)
+ Add new command <literal>\password</> for changing role
+ password with client-side password encryption (Peter)
</para>
</listitem>
<listitem>
<para>
- Allow multi-line values to align in the proper column (Martijn van
- Oosterhout)
+ Allow multi-line values to align in the proper column
+ (Martijn van Oosterhout)
</para>
</listitem>
<listitem>
<para>
- Save multi-line statements as a single entry, rather than one
- line at a time (Sergey E. Koposov)
+ Save multi-line statements as a single entry, rather than
+ one line at a time (Sergey E. Koposov)
</para>
<para>
- This makes up-arrow recall of queries easier.
+ This makes up-arrow recall of queries easier.
</para>
</listitem>
<listitem>
<para>
- Allow <literal>\c</> to connect to a new host and port number (David, Volkan Yazıcı)
+ Allow <literal>\c</> to connect to a new host and port
+ number (David, Volkan Yazıcı)
</para>
</listitem>
<listitem>
<para>
- Add option to run the entire session in a single transaction (Simon)
+ Add option to run the entire session in a single transaction
+ (Simon)
</para>
<para>
- Use options <literal>-1</> or <literal>--single-transaction</>.
+ Use options <literal>-1</> or <literal>--single-transaction</>.
</para>
</listitem>
<listitem>
<para>
- Improve highlighting of error location in query in more cases (Tom)
+ Improve highlighting of error location in query in more
+ cases (Tom)
</para>
</listitem>
<listitem>
<para>
- Add tablespace display to <literal>\l+</> (Philip Yarra)
+ Add tablespace display to <literal>\l+</> (Philip Yarra)
</para>
</listitem>
<listitem>
<para>
- Support binary <command>COPY</> (Andreas Pflug)
+ Support binary <command>COPY</> (Andreas Pflug)
</para>
</listitem>
<listitem>
<para>
- Improve <literal>\df</> slash command to include the argument names and modes
- (<literal>OUT</> or <literal>INOUT</>) of the function (David Fetter)
+ Improve <literal>\df</> slash command to include the argument
+ names and modes (<literal>OUT</> or <literal>INOUT</>) of
+ the function (David Fetter)
</para>
</listitem>
<listitem>
<para>
- Make the line counter 64-bit so it can handle files over two billion lines
- (David Fetter)
+ Make the line counter 64-bit so it can handle files over
+ two billion lines (David Fetter)
</para>
</listitem>
<listitem>
<para>
- Report both the returned data and the command status tag
- for <command>INSERT</>/<command>UPDATE</>/<command>DELETE RETURNING</> (Tom)
+ Report both the returned data and the command status tag
+ for <command>INSERT</>/<command>UPDATE</>/<command>DELETE
+ RETURNING</> (Tom)
</para>
</listitem>
<listitem>
<para>
- Support retrieving <command>SELECT</> results in batches using a cursor (Chris
- Mair)
+ Support retrieving <command>SELECT</> results in batches
+ using a cursor (Chris Mair)
</para>
<para>
- This is accomplished using <command>\set FETCH_COUNT</>.
+ This is accomplished using <command>\set FETCH_COUNT</>.
</para>
</sect3>
<listitem>
<para>
- Allow complex selection of objects to be included or excluded by <application>pg_dump</>
- (Greg Sabino Mullane)
+ Allow complex selection of objects to be included or excluded
+ by <application>pg_dump</> (Greg Sabino Mullane)
</para>
<para>
- <application>pg_dump</> now supports multiple <literal>-n</> (schema) and <literal>-t</> (table) options, and
- adds <literal>-T</> and <literal>-N</> options to exclude objects. Also adds support for regular
- expressions for object names in these switches.
+ <application>pg_dump</> now supports multiple <literal>-n</>
+ (schema) and <literal>-t</> (table) options, and adds
+ <literal>-T</> and <literal>-N</> options to exclude objects.
+ Also adds support for regular expressions for object names
+ in these switches.
</para>
</listitem>
<listitem>
<para>
- Add <application>pg_dump</> <literal>-X no-data-for-failed-tables</> option to suppress loading data
- if table creation failed (the table already exists) (Martin Pitt)
+ Add <application>pg_dump</> <literal>-X
+ no-data-for-failed-tables</> option to suppress loading
+ data if table creation failed (the table already exists)
+ (Martin Pitt)
</para>
</listitem>
<listitem>
<para>
- Add <application>pg_restore</> option to run the entire session in a single transaction (Simon)
+ Add <application>pg_restore</> option to run the entire
+ session in a single transaction (Simon)
</para>
<para>
- Use options <literal>-1</> or <literal>--single-transaction</>.
+ Use options <literal>-1</> or <literal>--single-transaction</>.
</para>
</sect3>
<listitem>
<para>
- Add <function>PQencryptPassword()</> to encrypt passwords (Tom)
+ Add <function>PQencryptPassword()</> to encrypt passwords
+ (Tom)
</para>
<para>
- This allows passwords to be sent encrypted for commands like <command>ALTER
- USER ... PASSWORD</>.
+ This allows passwords to be sent encrypted for commands
+ like <command>ALTER USER ... PASSWORD</>.
</para>
</listitem>
<listitem>
<para>
- Change <function>PQdsplen()</> to return a useful value (Martijn van
- Oosterhout)
+ Change <function>PQdsplen()</> to return a useful value
+ (Martijn van Oosterhout)
</para>
</listitem>
<listitem>
<para>
- Change <function>PQgetssl()</> to return a <literal>void*</>, rather than <literal>SSL*</> (Martijn van Oosterhout)
+ Change <function>PQgetssl()</> to return a <literal>void*</>,
+ rather than <literal>SSL*</> (Martijn van Oosterhout)
</para>
<para>
- This allows applications to use the function without <acronym>SSL</> headers.
+ This allows applications to use the function without
+ <acronym>SSL</> headers.
</para>
</listitem>
<listitem>
<para>
- Allow the <filename>.pgpass</> hostname to match the default socket directory, as
- well as a blank <literal>pghost</> (Bruce)
+ Allow the <filename>.pgpass</> hostname to match the default
+ socket directory, as well as a blank <literal>pghost</>
+ (Bruce)
</para>
</listitem>
<listitem>
<para>
- Add function <function>PQisthreadsafe()</> (Bruce)
+ Add function <function>PQisthreadsafe()</> (Bruce)
</para>
<para>
- This allows applications to query the thread-safety status
- of the library.
+ This allows applications to query the thread-safety status
+ of the library.
</para>
</listitem>
<listitem>
<para>
- Allow <acronym>LDAP</> lookups from <filename>pg_service.conf</> (Albe Laurenz)
+ Allow <acronym>LDAP</> lookups from <filename>pg_service.conf</>
+ (Albe Laurenz)
</para>
</listitem>
<listitem>
<para>
- Add <function>PQdescribePrepared()</>, <function>PQdescribePortal()</>, and related functions
- return information about previously prepared statements and
- open cursors (Volkan Yazıcı)
+ Add <function>PQdescribePrepared()</>,
+ <function>PQdescribePortal()</>, and related functions
+ return information about previously prepared statements
+ and open cursors (Volkan Yazıcı)
</para>
</sect3>
<listitem>
<para>
- Allow <command>SHOW</> to put its result into a variable (Joachim Wieland)
+ Allow <command>SHOW</> to put its result into a variable
+ (Joachim Wieland)
</para>
</listitem>
<listitem>
<para>
- Add <command>COPY TO STDOUT</> (Joachim Wieland)
+ Add <command>COPY TO STDOUT</> (Joachim Wieland)
</para>
</listitem>
<listitem>
<para>
- Add regression tests (Joachim Wieland, Michael)
+ Add regression tests (Joachim Wieland, Michael)
</para>
</listitem>
<listitem>
<para>
- Major source code cleanups (Joachim Wieland, Michael)
+ Major source code cleanups (Joachim Wieland, Michael)
</para>
</sect3>
<listitem>
<para>
- Improve handling of intermittent file system and resource failures (Qingqing Zhou)
+ Improve handling of intermittent file system and resource
+ failures (Qingqing Zhou)
</para>
</listitem>
<listitem>
<para>
- Stability fixes (Magnus)
+ Stability fixes (Magnus)
</para>
<para>
- Particularly, prevent the postmaster from stopping if too many
- connection requests arrive too rapidly.
+ Particularly, prevent the postmaster from stopping if too
+ many connection requests arrive too rapidly.
</para>
</listitem>
<listitem>
<para>
- Add support for Windows code pages <literal>1253</>, <literal>1254</>, <literal>1255</>,
- and <literal>1257</> (Kris Jurka)
+ Add support for Windows code pages <literal>1253</>,
+ <literal>1254</>, <literal>1255</>, and <literal>1257</>
+ (Kris Jurka)
</para>
</listitem>
<listitem>
<para>
- Allow <acronym>MSVC</> to compile the <productname>PostgreSQL</> server (Magnus, Hiroshi
- Saito)
+ Allow <acronym>MSVC</> to compile the <productname>PostgreSQL</>
+ server (Magnus, Hiroshi Saito)
</para>
</listitem>
<listitem>
<para>
- Add <acronym>MSVC</> support for utility commands and <application>pg_dump </>(Hiroshi Saito)
+ Add <acronym>MSVC</> support for utility commands and
+ <application>pg_dump </>(Hiroshi Saito)
</para>
</listitem>
<listitem>
<para>
- Add native semaphore implementation (Qingqing Zhou)
+ Add native semaphore implementation (Qingqing Zhou)
</para>
<para>
- Previous implementations mimicked SysV semaphores.
+ Previous implementations mimicked SysV semaphores.
</para>
</sect3>
<listitem>
<para>
- Remove R-tree indexing (Tom)
+ Remove R-tree indexing (Tom)
</para>
<para>
-
Rtree has been re-implemented using <acronym>GIST</>.
+ Rtree has been re-implemented using <acronym>GIST</>.
</para>
</listitem>
<listitem>
<para>
- Reduce libraries linked into the backend needlessly (Martijn van
- Oosterhout, Tom)
+ Reduce libraries linked into the backend needlessly (Martijn
+ van Oosterhout, Tom)
</para>
</listitem>
<listitem>
<para>
- New macro <literal>PG_VERSION_NUM</> for use by third-party applications wanting to
- test the backend version in C using > and < comparisons (Bruce)
+ New macro <literal>PG_VERSION_NUM</> for use by third-party
+ applications wanting to test the backend version in C using
+ > and < comparisons (Bruce)
</para>
</listitem>
<listitem>
<para>
-
Improve multicolumn <acronym>GIST</> indexing (Oleg, Teodor)
+ Improve multicolumn <acronym>GIST</> indexing (Oleg, Teodor)
</para>
</listitem>
<listitem>
<para>
-
<acronym>GIST</> indexes now are clusterable (Teodor)
+ <acronym>GIST</> indexes now are clusterable (Teodor)
</para>
</listitem>
<listitem>
<para>
- Add a configure flag to allow libedit to be preferred over <acronym>GNU</> readline
- (Bruce)
+ Add a configure flag to allow libedit to be preferred over
+ <acronym>GNU</> readline (Bruce)
</para>
<para>
- Use configure <literal>--with-libedit-preferred</>.
+ Use configure <literal>--with-libedit-preferred</>.
</para>
</listitem>
<listitem>
<para>
- Allow installation into directories containing spaces (Peter)
+ Allow installation into directories containing spaces
+ (Peter)
</para>
</listitem>
<listitem>
<para>
- Improve ability to relocate installs in more complex configurations (Tom)
+ Improve ability to relocate installs in more complex
+ configurations (Tom)
</para>
</listitem>
<listitem>
<para>
- Add support for <productname>Solaris x86_64</> using the <productname>Solaris</> compiler (Pierre Girard,
- Theo Schlossnagle, Bruce)
+ Add support for <productname>Solaris x86_64</> using the
+ <productname>Solaris</> compiler (Pierre Girard, Theo
+ Schlossnagle, Bruce)
</para>
</listitem>
<listitem>
<para>
-
Remove <acronym>QNX</> and <acronym>BEOS</> ports (Bruce)
+ Remove <acronym>QNX</> and <acronym>BEOS</> ports (Bruce)
</para>
<para>
- These ports no longer had active maintainers.
+ These ports no longer had active maintainers.
</para>
</listitem>
<listitem>
<para>
- Make command-line options of postmaster and postgres identical (Peter)
+ Make command-line options of postmaster and postgres
+ identical (Peter)
</para>
<para>
- This allows the postmaster to pass arguments to each backend without
- using <literal>-o</>.
+ This allows the postmaster to pass arguments to each backend
+ without using <literal>-o</>.
</para>
</listitem>
<listitem>
<para>
- Add <literal>XLOG_BLCKSZ</> as independent from <literal>BLCKSZ</> (Mark Wong)
+ Add <literal>XLOG_BLCKSZ</> as independent from <literal>BLCKSZ</>
+ (Mark Wong)
</para>
</listitem>
<listitem>
<para>
- Add <literal>LWLOCK_STATS</> define to report locking activity (Tom)
+ Add <literal>LWLOCK_STATS</> define to report locking
+ activity (Tom)
</para>
</listitem>
<listitem>
<para>
- Add <acronym>GIN</> (Generalized Inverted iNdex) index access method (Teodor)
+ Add <acronym>GIN</> (Generalized Inverted iNdex) index
+ access method (Teodor)
</para>
</listitem>
<listitem>
<para>
- Emit warnings for unknown <application>configure</> options (Martijn van Oosterhout)
+ Emit warnings for unknown <application>configure</> options
+ (Martijn van Oosterhout)
</para>
</listitem>
<listitem>
<para>
- Add <literal>PG_MODULE_MAGIC</> header block to all shared object files (Martijn van Oosterhout)
+ Add <literal>PG_MODULE_MAGIC</> header block to all shared
+ object files (Martijn van Oosterhout)
</para>
<para>
- The magic blocks prevent version mismatches between object files and
- servers.
+ The magic blocks prevent version mismatches between object
+ files and servers.
</para>
</listitem>
<listitem>
<para>
- Add a <acronym>GUC</> parameter <envar>seq_page_cost</> (Tom)
+ Add a <acronym>GUC</> parameter <envar>seq_page_cost</>
+ (Tom)
</para>
</listitem>
<listitem>
<para>
- Re-implement the regression test script as a C program (Magnus, Tom)
+ Re-implement the regression test script as a C program
+ (Magnus, Tom)
</para>
</listitem>
<listitem>
<para>
-
Add <application>DTrace</> support (Robert Lor)
+ Add <application>DTrace</> support (Robert Lor)
</para>
</listitem>
<listitem>
<para>
- Allow loadable modules to allocate shared memory and lightweight locks (Marc Munro)
+ Allow loadable modules to allocate shared memory and
+ lightweight locks (Marc Munro)
</para>
</listitem>
<listitem>
<para>
- Add automatic initialization and finalization of dynamically
- loaded libraries (Ralf Engelschall, Tom)
+ Add automatic initialization and finalization of dynamically
+ loaded libraries (Ralf Engelschall, Tom)
</para>
<para>
- New functions <function>_PG_init()</> and <function>_PG_fini()</> are called if the library
- defines such symbols. Hence we no longer need to specify an initialization
- function in <envar>shared_preload_libraries</>; we can assume that the library used the
- <function>_PG_init()</> convention instead.
+ New functions <function>_PG_init()</> and <function>_PG_fini()</>
+ are called if the library defines such symbols. Hence we
+ no longer need to specify an initialization function in
+ <envar>shared_preload_libraries</>; we can assume that the
+ library used the <function>_PG_init()</> convention instead.
</para>
</listitem>
<listitem>
<para>
- Add support for libraries that enhance server-side languages (Korry Douglas)
+ Add support for libraries that enhance server-side languages
+ (Korry Douglas)
</para>
<para>
- Such libraries can be used for debugging or performance measurement.
+ Such libraries can be used for debugging or performance
+ measurement.
</para>
</listitem>
<listitem>
<para>
- Rename existing <acronym>GUC</> variable <envar>preload_libraries</> to <envar>shared_preload_libraries</> (Tom)
+ Rename existing <acronym>GUC</> variable
+ <envar>preload_libraries</> to <envar>shared_preload_libraries</>
+ (Tom)
</para>
</listitem>
<listitem>
<para>
- Add new variable <envar>server_version_num</> (Greg Sabino Mullane)
+ Add new variable <envar>server_version_num</> (Greg Sabino
+ Mullane)
</para>
<para>
- This is like server_version, but is an integer, e.g. <literal>80200</>. It allows
- easy applications version checks.
+ This is like server_version, but is an integer, e.g.
+ <literal>80200</>. It allows easy applications version
+ checks.
</para>
</listitem>
<listitem>
<para>
-
New <acronym>XML</> documentation section (Bruce)
+ New <acronym>XML</> documentation section (Bruce)
</para>
</sect3>
<listitem>
<para>
- Major tsearch2 improvements (Oleg, Teodor)
+ Major tsearch2 improvements (Oleg, Teodor)
</para>
<itemizedlist>
<listitem>
<para>
-
multibyte encoding support, including <acronym>UTF8</>
+ multibyte encoding support, including <acronym>UTF8</>
</para>
</listitem>
<listitem>
<para>
- query rewriting support
+ query rewriting support
</para>
</listitem>
<listitem>
<para>
- improved ranking functions
+ improved ranking functions
</para>
</listitem>
<listitem>
<para>
- thesaurus dictionary support
+ thesaurus dictionary support
</para>
</listitem>
<listitem>
<para>
- Ispell dictionaries now recognize <application>MySpell</> format, used by <application>OpenOffice</>.
+ Ispell dictionaries now recognize <application>MySpell</>
+ format, used by <application>OpenOffice</>.
</para>
</listitem>
<listitem>
<para>
-
<acronym>GIN</> support
+ <acronym>GIN</> support
</para>
</listitem>
<listitem>
<para>
- Add pg_freespacemap to display free space map information (Mark
- Kirkwood)
+ Add pg_freespacemap to display free space map information
+ (Mark Kirkwood)
</para>
</listitem>
<listitem>
<para>
- New uninstall scripts (David)
+ New uninstall scripts (David)
</para>
</listitem>
<listitem>
<para>
- Add pgrowlocks (Tatsuo)
+ Add pgrowlocks (Tatsuo)
</para>
<para>
- This shows row locking information for a specified table.
+ This shows row locking information for a specified table.
</para>
</listitem>
<listitem>
<para>
- Add <application>Pgadmin</> administration functions to adminpack (Dave)
+ Add <application>Pgadmin</> administration functions to
+ adminpack (Dave)
</para>
<para>
- These functions provide additional file system access routines not present
- in the default <productname>PostgreSQL</> server.
+ These functions provide additional file system access
+ routines not present in the default <productname>PostgreSQL</>
+ server.
</para>
</listitem>
<listitem>
<para>
- Add index information to pgstattuple (ITAGAKI Takahiro, Satoshi Nagayasu)
+ Add index information to pgstattuple (ITAGAKI Takahiro,
+ Satoshi Nagayasu)
</para>
</listitem>
<listitem>
<para>
- pgcrypto now has all planned functionality (Marko Kreen)
+ pgcrypto now has all planned functionality (Marko Kreen)
</para>
</listitem>
<listitem>
<para>
- Update cube (Joshua Reich)
+ Update cube (Joshua Reich)
</para>
<para>
- New functions are <function>cube(float[])</>, <function>cube(float[], float[])</>, and
- <function>cube_subset(cube, int4[])</>.
+ New functions are <function>cube(float[])</>,
+ <function>cube(float[], float[])</>, and
+ <function>cube_subset(cube, int4[])</>.
</para>
</listitem>
<listitem>
<para>
- Added async query capability to dblink (Kai Londenberg, Joe Conway)
+ Added async query capability to dblink (Kai Londenberg,
+ Joe Conway)
</para>
</listitem>
<listitem>
<para>
- Add sslinfo (Victor Wagner)
+ Add sslinfo (Victor Wagner)
</para>
<para>
- Reports information about the current <acronym>SSL</> certificate.
+ Reports information about the current <acronym>SSL</>
+ certificate.
</para>
</listitem>
<listitem>
<para>
- Remove ora2pg, now at <ulink url="http://www.samse.fr/GPL/ora2pg"></ulink>
+ Remove ora2pg, now at <ulink
+ url="http://www.samse.fr/GPL/ora2pg"></ulink>
</para>
</listitem>
<listitem>
<para>
- Remove contrib modules that have been migrated to pgfoundry: adddepend,
- dbase, dbmirror, fulltextindex, mac, userlock
+ Remove contrib modules that have been migrated to pgfoundry:
+ adddepend, dbase, dbmirror, fulltextindex, mac, userlock
</para>
</listitem>
<listitem>
<para>
- Remove abandoned modules: mSQL-interface, ips
+ Remove abandoned modules: mSQL-interface, ips
</para>
</listitem>
<listitem>
<para>
- Add hstore module (Oleg, Teodor)
+ Add hstore module (Oleg, Teodor)
</para>
</listitem>
<listitem>
<para>
- Add isn module, replacing isbn_issn (Jeremy Kronuz)
+ Add isn module, replacing isbn_issn (Jeremy Kronuz)
</para>
<para>
- This now supports <acronym>EAN13</>, <acronym>UPC</>, <acronym>ISBN</> (books), <acronym>ISMN</> (music), and
- <acronym>ISSN</> (serials).
+ This now supports <acronym>EAN13</>, <acronym>UPC</>,
+ <acronym>ISBN</> (books), <acronym>ISMN</> (music), and
+ <acronym>ISSN</> (serials).
</para>
</listitem>
<listitem>
<para>
- New operators for array-subset comparisons (<literal>@></>, <literal><@</>, <literal>&&</>) (Tom)
+ New operators for array-subset comparisons (<literal>@></>,
+ <literal><@</>, <literal>&&</>) (Tom)
</para>
</listitem>
<listitem>
<para>
- In xml, rename <function>xml_valid()</> to <function>xml_is_well_formed()</> (Tom)
+ In xml, rename <function>xml_valid()</> to
+ <function>xml_is_well_formed()</> (Tom)
</para>
<para>
- <function>xml_valid()</> will remain for backward compability, but its behavior
- will change to do schema checks in future releases.
+ <function>xml_valid()</> will remain for backward compability,
+ but its behavior will change to do schema checks in future
+ releases.
</para>
</listitem>
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