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Update 9.0 release notes to current; add major items and introductory 

text.
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Bruce Momjian 2010-04-29 20:43:22 +00:00
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doc/src/sgml/release-9.0.sgml
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<!-- $PostgreSQL: pgsql/doc/src/sgml/release-9.0.sgml,v 2.15 2010/04/05 02:46:42 tgl Exp $ --> <!-- $PostgreSQL: pgsql/doc/src/sgml/release-9.0.sgml,v 2.16 2010/04/29 20:43:22 momjian Exp $ -->
<sect1 id="release-9-0"> <sect1 id="release-9-0">
@ -13,21 +13,165 @@
<title>Overview</title> <title>Overview</title>
<para> <para>
ADD HERE Based on overwhelming user demand, this release of
<productname>PostgreSQL</> adds features that have been requested
for years, like easy-to-use replication, a mass permission
facility, and anonymous blocks. While past major releases have
been quite conservative in their scope, this release shows a
bold new desire to provide facilities that every new and existing
user of <productname>PostgreSQL</> will embrace. This has all
been done with few incompatibilities. The major areas of
enhancement are:
</para> </para>
<itemizedlist>
<!-- This list duplicates items below, but without authors or details--> <!-- This list duplicates items below, but without authors or details-->
<listitem>
<para>
Allow continuous archive standby systems to accept read-only queries
</para>
</listitem>
<listitem>
<para>
Allow continuous archive (<acronym>WAL</>) files to be streamed to a
standby system
</para>
</listitem>
<listitem>
<para>
Add the ability to make mass permission changes per
schema using the new <link
linkend="SQL-GRANT"><command>GRANT</>/<command>REVOKE
IN SCHEMA</></link> clause
</para>
</listitem>
<listitem>
<para>
Add the ability to control large object permissions with
<command>GRANT</>/<command>REVOKE</>
</para>
</listitem>
<listitem>
<para>
Implement anonymous functions using the <link
linkend="SQL-DO"><command>DO</></link> statement
</para>
</listitem>
<listitem>
<para>
Allow function calls to supply parameter names and match them to named
parameters in the function definition (Pavel Stehule)
</para>
</listitem>
<listitem>
<para>
Install server-side language PL/pgSQL by default
</para>
</listitem>
<listitem>
<para>
Major PL/Perl enhancements
</para>
</listitem>
<listitem>
<para>
Allow SQL-compliant <link
linkend="SQL-CREATETRIGGER">per-column triggers</link>
</para>
</listitem>
<listitem>
<para>
Add <link linkend="SQL-CREATETABLE-compatibility">deferrable
unique constraints</link>
</para>
</listitem>
<listitem>
<para>
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
</para>
</listitem>
<listitem>
<para>
Allow <link linkend="SQL-NOTIFY"><command>NOTIFY</></link>
to pass an optional string to listeners
</para>
</listitem>
<listitem>
<para>
Change <command>VACUUM FULL</> to rewrite the entire table and
indexes, rather than moving around single rows to compact space
</para>
</listitem>
<listitem>
<para>
Add prefix support for the full text search synonym dictionary
</para>
</listitem>
<listitem>
<para>
Use red-black trees for <acronym>GIN</> index creation
</para>
</listitem>
<listitem>
<para>
Add <link
linkend="functions-binarystring-other"><function>get_bit()</></link>
and <function>set_bit()</> functions for <type>bit</>
strings, mirroring those for <type>bytea</>
</para>
</listitem>
<listitem>
<para>
Add the ability for clients to set an <link
linkend="libpq-connect-application-name">application
name</link>, which is displayed in
<structname>pg_stat_activity</>
</para>
</listitem>
<listitem>
<para>
Add support for compiling on <link
linkend="install-win32-full">64-bit
<productname>Windows</></link> and running in 64-bit
mode
</para>
</listitem>
<listitem>
<para> <para>
The above items are explained in more detail in the sections below. The above items are explained in more detail in the sections below.
</para> </para>
</listitem>
</itemizedlist>
</sect2> </sect2>
<sect2> <sect2>
<title>Migration to Version 9.0</title> <title>Migration to Version 9.0</title>
<para>CURRENT AS OF 2010-03-15</para> <para>CURRENT AS OF 2010-04-29</para>
<para> <para>
A dump/restore using <application>pg_dump</application> is A dump/restore using <application>pg_dump</application> is
@ -60,6 +204,15 @@
</para> </para>
</listitem> </listitem>
<listitem>
<para>
It is now necessary to set <link
linkend="guc-wal-level"><varname>wal_level</></link> to
<literal>archive</> to do continuous archiving.
(Heikki Linnakangas)
</para>
</listitem>
</itemizedlist> </itemizedlist>
</sect3> </sect3>
@ -152,7 +305,6 @@
</para> </para>
</listitem> </listitem>
</itemizedlist> </itemizedlist>
</sect3> </sect3>
@ -218,7 +370,7 @@
<listitem> <listitem>
<para> <para>
Allow continuous archive standby systems to accept read-only queries Allow continuous archive standby systems to accept read-only queries
(Simon, Heikki) (Simon Riggs, Heikki Linnakangas)
</para> </para>
<para> <para>
@ -232,7 +384,7 @@
<listitem> <listitem>
<para> <para>
Allow continuous archive (<acronym>WAL</>) files to be streamed to a Allow continuous archive (<acronym>WAL</>) files to be streamed to a
standby system (Fujii Masao, Heikki) standby system (Fujii Masao, Heikki Linnakangas)
</para> </para>
<para> <para>
@ -251,7 +403,7 @@
linkend="functions-recovery-info-table"><function>pg_last_xlog_receive_location()</></link> linkend="functions-recovery-info-table"><function>pg_last_xlog_receive_location()</></link>
and <function>pg_last_xlog_replay_location()</>, which and <function>pg_last_xlog_replay_location()</>, which
can be used to monitor standby server <acronym>WAL</> can be used to monitor standby server <acronym>WAL</>
activity (Simon, Fujii Masao, Heikki) activity (Simon Riggs, Fujii Masao, Heikki Linnakangas)
</para> </para>
</listitem> </listitem>
@ -552,6 +704,19 @@
</para> </para>
</listitem> </listitem>
<listitem>
<para>
Add boolean variable <link
linkend="guc-enable-material"><varname>enable_material</></link>, which
controls the use of materialize nodes in the optimizer
(Robert Haas)
</para>
<para>
The default is on.
</para>
</listitem>
<listitem> <listitem>
<para> <para>
Log changed parameter values when <filename>postgresql.conf</> is Log changed parameter values when <filename>postgresql.conf</> is
@ -559,6 +724,20 @@
</para> </para>
</listitem> </listitem>
<listitem>
<para>
Add proper permissions for custom variables (Tom Lane)
</para>
<para>
Custom variables can now only be created by super-users,
but can be modified by ordinary users if variable
permissions allow it. This makes custom variables
appropriate for security settings. Previously, any user
could create or modify custom variables.
</para>
</listitem>
</itemizedlist> </itemizedlist>
</sect4> </sect4>
@ -838,7 +1017,7 @@
<listitem> <listitem>
<para> <para>
Add the ability to control large object permissions with Add the ability to control large object permissions with
<command>GRANT</>/<command>REVOKE</>(KaiGai Kohei) <command>GRANT</>/<command>REVOKE</> (KaiGai Kohei)
</para> </para>
</listitem> </listitem>
@ -972,7 +1151,7 @@
<para> <para>
Change <command>VACUUM FULL</> to rewrite the entire table and Change <command>VACUUM FULL</> to rewrite the entire table and
indexes, rather than moving around single rows to compact space indexes, rather than moving around single rows to compact space
(Itagaki Takahiro, Tom) (Itagaki Takahiro, Tom Lane)
</para> </para>
<para> <para>
@ -1109,6 +1288,13 @@
</para> </para>
</listitem> </listitem>
<listitem>
<para>
Use more standards-compliant rules for <acronym>URL</>
parsing (Tom Lane)
</para>
</listitem>
</itemizedlist> </itemizedlist>
</sect4> </sect4>
@ -1162,7 +1348,7 @@
Have <function>to_char()</> honor <link Have <function>to_char()</> honor <link
linkend="functions-formatting-datetimemod-table"><literal>'FM'</></link> linkend="functions-formatting-datetimemod-table"><literal>'FM'</></link>
(fill mode) in <literal>'Y'</>, <literal>'YY'</>, and (fill mode) in <literal>'Y'</>, <literal>'YY'</>, and
<literal>'YYY'</> specifications (Bruce Momjian) <literal>'YYY'</> specifications (Bruce Momjian, Tom Lane)
</para> </para>
<para> <para>
@ -1170,6 +1356,14 @@
</para> </para>
</listitem> </listitem>
<listitem>
<para>
Fix <function>to_char()</> to output the proper localized
numeric and monetary characters on <productname>Windows</>
(Hiroshi Inoue, Itagaki Takahir, Bruce Momjian)
</para>
</listitem>
<listitem> <listitem>
<para> <para>
Correct calculations of <link Correct calculations of <link
@ -1789,7 +1983,7 @@
Have <application>pg_dump</> <link Have <application>pg_dump</> <link
linkend="pg-dump-options"><option>--verbose</></link> linkend="pg-dump-options"><option>--verbose</></link>
output the <application>pg_dump</> and server versions output the <application>pg_dump</> and server versions
in text output mode (Jim Cox, Tom) in text output mode (Jim Cox, Tom Lane)
</para> </para>
<para> <para>
@ -1947,6 +2141,13 @@
</para> </para>
</listitem> </listitem>
<listitem>
<para>
Allow <application>ecpg</> to use variable names in
<function>free()</>(Michael Meskes)
</para>
</listitem>
<listitem> <listitem>
<para> <para>
Have <application>ecpg</> return zero for non-SQL3 data types Have <application>ecpg</> return zero for non-SQL3 data types
@ -2018,7 +2219,7 @@
<listitem> <listitem>
<para> <para>
Add a compile-time option to allow the Linux out-of-memory killer Add a compile-time option to allow the Linux out-of-memory killer
to kill backends (Alex Hunsaker, Tom) to kill backends (Alex Hunsaker, Tom Lane)
</para> </para>
<para> <para>
@ -2176,7 +2377,7 @@
<listitem> <listitem>
<para> <para>
Improve speed of memory allocation (Tom, Greg Stark) Improve speed of memory allocation (Tom Lane, Greg Stark)
</para> </para>
</listitem> </listitem>
@ -2202,14 +2403,14 @@
<listitem> <listitem>
<para> <para>
Improve source code test coverage, including /contrib, PL/Python, Improve source code test coverage, including /contrib, PL/Python,
and PL/Perl (Peter, Andrew) and PL/Perl (Peter Eisentraut, Andrew Dustan)
</para> </para>
</listitem> </listitem>
<listitem> <listitem>
<para> <para>
Remove the use of flat files for system table bootstrapping (Tom, Remove the use of flat files for system table bootstrapping
Alvaro) (Tom Lane, Alvaro Herrera)
</para> </para>
<para> <para>
@ -2317,7 +2518,7 @@
<listitem> <listitem>
<para> <para>
Allow use of <productname>C++</> functions in backend code (Kurt Allow use of <productname>C++</> functions in backend code (Kurt
Harriman, Peter) Harriman, Peter Eisentraut)
</para> </para>
<para> <para>
@ -2531,7 +2732,7 @@
to use <filename>/proc/self/oom_adj</> to disable the to use <filename>/proc/self/oom_adj</> to disable the
<link linkend="linux-memory-overcommit"><productname>Linux</> <link linkend="linux-memory-overcommit"><productname>Linux</>
out-of-memory</link> (<acronym>OOM</>) killer (Alex out-of-memory</link> (<acronym>OOM</>) killer (Alex
Hunsaker, Tom) Hunsaker, Tom Lane)
</para> </para>
</listitem> </listitem>