-<!-- $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">
<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
</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>
</para>
</listitem>
-
</itemizedlist>
</sect3>
<listitem>
<para>
Allow continuous archive standby systems to accept read-only queries
- (Simon, Heikki)
+ (Simon Riggs, Heikki Linnakangas)
</para>
<para>
<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>
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>
</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
</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>
<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>
<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>
</para>
</listitem>
+ <listitem>
+ <para>
+ Use more standards-compliant rules for <acronym>URL</>
+ parsing (Tom Lane)
+ </para>
+ </listitem>
+
</itemizedlist>
</sect4>
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>
</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
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>
</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
<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>
<listitem>
<para>
- Improve speed of memory allocation (Tom, Greg Stark)
+ Improve speed of memory allocation (Tom Lane, Greg Stark)
</para>
</listitem>
<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>
<listitem>
<para>
Allow use of <productname>C++</> functions in backend code (Kurt
- Harriman, Peter)
+ Harriman, Peter Eisentraut)
</para>
<para>
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>
projects / postgresql.git / commitdiff