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