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

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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">
@ -13,21 +13,165 @@
<title>Overview</title>
<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>
<!-- This list duplicates items below, but without authors or details-->
<itemizedlist>
<para>
The above items are explained in more detail in the sections below.
</para>
<!-- 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>
The above items are explained in more detail in the sections below.
</para>
</listitem>
</itemizedlist>
</sect2>
<sect2>
<title>Migration to Version 9.0</title>
<para>CURRENT AS OF 2010-03-15</para>
<para>CURRENT AS OF 2010-04-29</para>
<para>
A dump/restore using <application>pg_dump</application> is
@ -60,6 +204,15 @@
</para>
</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>
</sect3>
@ -152,7 +305,6 @@
</para>
</listitem>
</itemizedlist>
</sect3>
@ -218,7 +370,7 @@
<listitem>
<para>
Allow continuous archive standby systems to accept read-only queries
(Simon, Heikki)
(Simon Riggs, Heikki Linnakangas)
</para>
<para>
@ -232,7 +384,7 @@
<listitem>
<para>
Allow continuous archive (<acronym>WAL</>) files to be streamed to a
standby system (Fujii Masao, Heikki)
standby system (Fujii Masao, Heikki Linnakangas)
</para>
<para>
@ -251,7 +403,7 @@
linkend="functions-recovery-info-table"><function>pg_last_xlog_receive_location()</></link>
and <function>pg_last_xlog_replay_location()</>, which
can be used to monitor standby server <acronym>WAL</>
activity (Simon, Fujii Masao, Heikki)
activity (Simon Riggs, Fujii Masao, Heikki Linnakangas)
</para>
</listitem>
@ -552,6 +704,19 @@
</para>
</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>
<para>
Log changed parameter values when <filename>postgresql.conf</> is
@ -559,6 +724,20 @@
</para>
</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>
</sect4>
@ -838,7 +1017,7 @@
<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>
@ -972,7 +1151,7 @@
<para>
Change <command>VACUUM FULL</> to rewrite the entire table and
indexes, rather than moving around single rows to compact space
(Itagaki Takahiro, Tom)
(Itagaki Takahiro, Tom Lane)
</para>
<para>
@ -1109,6 +1288,13 @@
</para>
</listitem>
<listitem>
<para>
Use more standards-compliant rules for <acronym>URL</>
parsing (Tom Lane)
</para>
</listitem>
</itemizedlist>
</sect4>
@ -1162,7 +1348,7 @@
Have <function>to_char()</> honor <link
linkend="functions-formatting-datetimemod-table"><literal>'FM'</></link>
(fill mode) in <literal>'Y'</>, <literal>'YY'</>, and
<literal>'YYY'</> specifications (Bruce Momjian)
<literal>'YYY'</> specifications (Bruce Momjian, Tom Lane)
</para>
<para>
@ -1170,6 +1356,14 @@
</para>
</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>
<para>
Correct calculations of <link
@ -1789,7 +1983,7 @@
Have <application>pg_dump</> <link
linkend="pg-dump-options"><option>--verbose</></link>
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>
@ -1947,6 +2141,13 @@
</para>
</listitem>
<listitem>
<para>
Allow <application>ecpg</> to use variable names in
<function>free()</>(Michael Meskes)
</para>
</listitem>
<listitem>
<para>
Have <application>ecpg</> return zero for non-SQL3 data types
@ -2018,7 +2219,7 @@
<listitem>
<para>
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>
@ -2176,7 +2377,7 @@
<listitem>
<para>
Improve speed of memory allocation (Tom, Greg Stark)
Improve speed of memory allocation (Tom Lane, Greg Stark)
</para>
</listitem>
@ -2202,14 +2403,14 @@
<listitem>
<para>
Improve source code test coverage, including /contrib, PL/Python,
and PL/Perl (Peter, Andrew)
and PL/Perl (Peter Eisentraut, Andrew Dustan)
</para>
</listitem>
<listitem>
<para>
Remove the use of flat files for system table bootstrapping (Tom,
Alvaro)
Remove the use of flat files for system table bootstrapping
(Tom Lane, Alvaro Herrera)
</para>
<para>
@ -2317,7 +2518,7 @@
<listitem>
<para>
Allow use of <productname>C++</> functions in backend code (Kurt
Harriman, Peter)
Harriman, Peter Eisentraut)
</para>
<para>
@ -2531,7 +2732,7 @@
to use <filename>/proc/self/oom_adj</> to disable the
<link linkend="linux-memory-overcommit"><productname>Linux</>
out-of-memory</link> (<acronym>OOM</>) killer (Alex
Hunsaker, Tom)
Hunsaker, Tom Lane)
</para>
</listitem>