-<!-- $PostgreSQL: pgsql/doc/src/sgml/release-9.0.sgml,v 2.6 2010/03/21 00:43:40 momjian Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/release-9.0.sgml,v 2.7 2010/03/21 02:24:29 momjian Exp $ -->
<sect1 id="release-9-0">
<listitem>
<para>
- Remove server variable <varname>regex_flavor</>, which was defaulted
- to <literal>advanced</> (e.g. Perl-regex compatible) for many
- years (Tom)
+ Remove server variable <varname>regex_flavor</>, which
+ was defaulted to <link
+ linkend="posix-syntax-details"><literal>advanced</></link>
+ (e.g. Perl-regex compatible) for many years (Tom)
</para>
</listitem>
<listitem>
<para>
- When querying a parent table, do not do additional permission
- checks on child tables returned as part of the query (Peter)
+ When querying a <link linkend="ddl-inherit">parent table</link>,
+ do not do additional permission checks on child tables
+ returned as part of the query (Peter)
</para>
<para>
<listitem>
<para>
- Have fractional seconds truncate rather than round when using
- float-based dates/times (Tom)
+ Have fractional seconds conversion truncate rather than
+ round when using float-based dates/times (Tom)
</para>
</listitem>
<listitem>
<para>
- Do not allow <function>substring()</> to have a negative third
- length, per the SQL standard (Tom)
+ Do not allow <link
+ linkend="functions-string-sql"><function>substring()</></link>
+ to have a negative third length, per the SQL standard (Tom)
</para>
</listitem>
<para>
Allow per-tablespace sequential and random page cost variables
(<varname>seq_page_cost</>/(<varname>random_page_cost</>)) via
- <command>ALTER TABLESPACE
- ... SET/RESET</> (Robert Haas)
+ <link linkend="SQL-ALTERTABLESPACE"><command>ALTER TABLESPACE
+ ... SET/RESET</></link> (Robert Haas)
</para>
</listitem>
<listitem>
<para>
- Improve performance of <command>TRUNCATE</> when used in the same
- transaction as table creation (Tom)
+ Improve performance of <link
+ linkend="SQL-TRUNCATE"><command>TRUNCATE</></link> when
+ used in the same transaction as table creation (Tom)
</para>
</listitem>
<listitem>
<para>
- Remove unnecessary outer joins (Robert Haas)
+ Remove unnecessary <link linkend="queries-join">outer
+ joins</link> (Robert Haas)
</para>
<para>
</sect4>
<sect4>
- <title>GEQO</title>
+ <title><link linkend="geqo">GEQO</link></title>
<itemizedlist>
<listitem>
<listitem>
<para>
- Improve <command>ANALYZE</> to support inheritance-tree statistics
- (Tom)
+ Improve <link linkend="SQL-ANALYZE"><command>ANALYZE</></link>
+ to support inheritance-tree statistics (Tom)
</para>
<para>
<listitem>
<para>
- Improve autovacuum detection of when re-analyze is necessary (Tom)
+ Improve <link linkend="routine-vacuuming">autovacuum</link>
+ detection of when re-analyze is necessary (Tom)
</para>
</listitem>
<listitem>
<para>
- Allow setting of distinct statistics using <command>ALTER TABLE</>
+ Allow setting of distinct statistics using <link
+ linkend="SQL-ALTERTABLE"><command>ALTER TABLE</></link>
(Robert Haas)
</para>
<listitem>
<para>
- Do <command>SELECT FOR UPDATE</>/<literal>SHARE</> processing
- after applying <literal>LIMIT</>, so the number of rows returned
+ Do <link linkend="SQL-FOR-UPDATE-SHARE"><command>SELECT
+ FOR UPDATE</>/<literal>SHARE</></link> processing after
+ applying <literal>LIMIT</>, so the number of rows returned
is always predictable (Tom)
</para>
<listitem>
<para>
- Allow mixing of traditional and SQL-standard
- <literal>LIMIT</>/<literal>OFFSET</> syntax in the same query (Tom)
+ Allow mixing of traditional and SQL-standard <link
+ linkend="SQL-LIMIT"><literal>LIMIT</>/<literal>OFFSET</></link>
+ syntax in the same query (Tom)
</para>
</listitem>
<listitem>
<para>
- Speed up <command>CREATE DATABASE</> by deferring flushes to disk
- (Andres Freund, Greg Stark)
+ Speed up <link linkend="SQL-CREATEDATABASE"><command>CREATE
+ DATABASE</></link> by deferring flushes to disk (Andres
+ Freund, Greg Stark)
</para>
</listitem>
<listitem>
<para>
- Allow comments only on columns of tables, views, and composite
- types, not other objects like indexes and <acronym>TOAST</> tables
- (Tom)
+ Allow <link linkend="SQL-COMMENT">comments</link> only on
+ columns of tables, views, and composite types, not other
+ objects like indexes and <acronym>TOAST</> tables (Tom)
</para>
</listitem>
<listitem>
<para>
- Allow the creation of enumerate types with no labels (Bruce)
+ Allow the creation of <link
+ linkend="SQL-CREATETYPE-enum">enumerate types</link> with
+ no labels (Bruce)
</para>
<para>
<listitem>
<para>
Have columns defined with storage type <literal>MAIN</> remain on
- main heap page unless it cannot fit (Kevin Grittner)
+ the main heap page unless it cannot fit (Kevin Grittner)
</para>
<para>
<listitem>
<para>
- Add deferrable unique constraints (Dean Rasheed)
+ Add <link linkend="SQL-CREATETABLE-compatibility">deferrable
+ unique constraints</link> (Dean Rasheed)
</para>
<para>
</para>
<para>
- This is enabled with the <command>CREATE TABLE CONSTRAINT ...
- EXCLUDE</> clause. While uniqueness checks could be specified
- using this syntax, the real value of this features is in using
- complex operators that do not have built-in constraints.
+ This is enabled with the <link
+ linkend="SQL-CREATETABLE-description"><command>CREATE
+ TABLE CONSTRAINT ... EXCLUDE</></link> clause. While
+ uniqueness checks could be specified using this syntax,
+ the real value of this features is in using complex
+ operators that do not have built-in constraints.
</para>
</listitem>
<para>
Add the ability to make mass permission changes per
schema using the new <link
- linkend="SQL-GRANT"><command>GRANT</></link>/<command>REVOKE
- IN SCHEMA</> clause (Petr Jelinek)
+ linkend="SQL-GRANT"><command>GRANT</>/<command>REVOKE
+ IN SCHEMA</></link> clause (Petr Jelinek)
</para>
</listitem>
<listitem>
<para>
Add the ability to control large object permissions with
- <command>GRANT</>/<command>REVOKE </>(KaiGai Kohei)
+ <command>GRANT</>/<command>REVOKE</>(KaiGai Kohei)
</para>
</listitem>
<listitem>
<para>
- Have <command>LISTEN</>/<command>NOTIFY</> store events in a memory
- queue, rather than a system table (Joachim Wieland)
+ Have <link linkend="SQL-LISTEN"><command>LISTEN</></link>/<link
+ linkend="SQL-NOTIFY"><command>NOTIFY</></link> store events
+ in a memory queue, rather than a system table (Joachim
+ Wieland)
</para>
<para>
<listitem>
<para>
- Allow <command>CLUSTER</> on all system tables (Tom)
+ Allow <link linkend="SQL-CLUSTER"><command>CLUSTER</></link>
+ on all system tables (Tom)
</para>
<para>
</para>
<para>
- log_*_stats log output, e.g. <varname>log_statement_stats</>, no
- longer shows this information.
+ log_*_stats log output, e.g. <xref
+ linkend="runtime-config-statistics-monitor">, no longer shows
+ this information.
</para>
</listitem>
</itemizedlist>
<sect4>
- <title>Full Text Search</title>
+ <title><link linkend="textsearch">Full Text Search</link></title>
<itemizedlist>
<listitem>
<listitem>
<para>
- Correct calculations of "overlap" and "contains" operations over
- polygons (Teodor)
+ Correct calculations of <link
+ linkend="functions-geometry-op-table">"overlap"</link>
+ and "contains" operations over polygons (Teodor)
</para>
</listitem>
<listitem>
<para>
- Have information schema properly display date type octet lengths
+ Have <link linkend="information-schema">information
+ schema</link> properly display date type octet lengths
(Peter)
</para>
<listitem>
<para>
- Add new PL/Perl functions: <function>quote_literal()</>,
+ Add new PL/Perl functions: <link
+ linkend="plperl-utility-functions"><function>quote_literal()</></link>,
<function>quote_nullable()</>, <function>quote_ident()</>,
<function>encode_bytea()</>, <function>decode_bytea()</>,
- <function>looks_like_number()</>, <function>encode_array_literal()</>,
+ <function>looks_like_number()</>,
+ <function>encode_array_literal()</>,
<function>encode_array_constructor()</> (Tim Bunce)
</para>
</listitem>
<para>
Allow <command>use strict</> in PL/Perl (Tim Bunce)
</para>
+
+ <para>
+ This can be enabled with the server variable <xref
+ linkend="guc-plperl-use-strict">.
+ </para>
</listitem>
<listitem>
<listitem>
<para>
- Add array parameter/return support to PL/Python (Peter)
+ Add <link linkend="plpython-arrays">array parameter/return
+ support</link> to PL/Python (Peter)
</para>
</listitem>
<listitem>
<para>
- Fix <command>psql --file -</> to properly honor
- <option>--single-transaction</> (Bruce)
+ Fix <command>psql --file -</> to properly honor <link
+ linkend="R1-APP-PSQL-3"><option>--single-transaction</></link>
+ (Bruce)
</para>
</listitem>
<listitem>
<para>
- Add a new <literal>ERRCODE_INVALID_PASSWORD</> <literal>SQLSTATE</> error
- code (Bruce)
+ Add a new <link
+ linkend="errcodes-table"><literal>ERRCODE_INVALID_PASSWORD</></link>
+ <literal>SQLSTATE</> error code (Bruce)
</para>
</listitem>
<listitem>
<para>
- Add <command>\shell</> and <command>\setshell</> meta commands to
- <filename>/contrib/pgbench</> (Michael Paquier)
+ Add <command>\shell</> and <command>\setshell</> meta
+ commands to <link
+ linkend="pgbench"><filename>/contrib/pgbench</></link>
+ (Michael Paquier)
</para>
</listitem>
projects / users / rhaas / postgres.git / commitdiff