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</para>
+ <sect1 id="release-8-1-14">
+ <title>Release 8.1.14</title>
+
+ <note>
+ <title>Release date</title>
+ <simpara>2008-09-22</simpara>
+ </note>
+
+ <para>
+ This release contains a variety of fixes from 8.1.13.
+ For information about new features in the 8.1 major release, see
+ <xref linkend="release-8-1">.
+ </para>
+
+ <sect2>
+ <title>Migration to Version 8.1.14</title>
+
+ <para>
+ A dump/restore is not required for those running 8.1.X.
+ However, if you are upgrading from a version earlier than 8.1.2,
+ see the release notes for 8.1.2.
+ </para>
+
+ </sect2>
+
+ <sect2>
+ <title>Changes</title>
+
+ <itemizedlist>
+
+ <listitem>
+ <para>
+ Widen local lock counters from 32 to 64 bits (Tom)
+ </para>
+
+ <para>
+ This responds to reports that the counters could overflow in
+ sufficiently long transactions, leading to unexpected <quote>lock is
+ already held</> errors.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Fix possible duplicate output of tuples during a GiST index scan (Teodor)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add checks in executor startup to ensure that the tuples produced by an
+ <command>INSERT</> or <command>UPDATE</> will match the target table's
+ current rowtype (Tom)
+ </para>
+
+ <para>
+ <command>ALTER COLUMN TYPE</>, followed by re-use of a previously
+ cached plan, could produce this type of situation. The check protects
+ against data corruption and/or crashes that could ensue.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Fix <literal>AT TIME ZONE</> to first try to interpret its timezone
+ argument as a timezone abbreviation, and only try it as a full timezone
+ name if that fails, rather than the other way around as formerly (Tom)
+ </para>
+
+ <para>
+ The timestamp input functions have always resolved ambiguous zone names
+ in this order. Making <literal>AT TIME ZONE</> do so as well improves
+ consistency, and fixes a compatibility bug introduced in 8.1:
+ in ambiguous cases we now behave the same as 8.0 and before did,
+ since in the older versions <literal>AT TIME ZONE</> accepted
+ <emphasis>only</> abbreviations.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Fix datetime input functions to correctly detect integer overflow when
+ running on a 64-bit platform (Tom)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Improve performance of writing very long log messages to syslog (Tom)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Fix bug in backwards scanning of a cursor on a <literal>SELECT DISTINCT
+ ON</> query (Tom)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Fix planner bug with nested sub-select expressions (Tom)
+ </para>
+
+ <para>
+ If the outer sub-select has no direct dependency on the parent query,
+ but the inner one does, the outer value might not get recalculated
+ for new parent query rows.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Fix planner to estimate that <literal>GROUP BY</> expressions yielding
+ boolean results always result in two groups, regardless of the
+ expressions' contents (Tom)
+ </para>
+
+ <para>
+ This is very substantially more accurate than the regular <literal>GROUP
+ BY</> estimate for certain boolean tests like <replaceable>col</>
+ <literal>IS NULL</>.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Fix PL/PgSQL to not fail when a <literal>FOR</> loop's target variable
+ is a record containing composite-type fields (Tom)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Fix PL/Tcl to behave correctly with Tcl 8.5, and to be more careful
+ about the encoding of data sent to or from Tcl (Tom)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Fix PL/Python to work with Python 2.5
+ </para>
+
+ <para>
+ This is a back-port of fixes made during the 8.2 development cycle.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Improve <application>pg_dump</> and <application>pg_restore</>'s
+ error reporting after failure to send a SQL command (Tom)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Fix <application>pg_ctl</> to properly preserve postmaster
+ command-line arguments across a <literal>restart</> (Bruce)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Update time zone data files to <application>tzdata</> release 2008f (for
+ DST law changes in Argentina, Bahamas, Brazil, Mauritius, Morocco,
+ Pakistan, Palestine, and Paraguay)
+ </para>
+ </listitem>
+
+ </itemizedlist>
+
+ </sect2>
+ </sect1>
+
<sect1 id="release-8-1-13">
<title>Release 8.1.13</title>
</sect2>
</sect1>
+ <sect1 id="release-8-0-18">
+ <title>Release 8.0.18</title>
+
+ <note>
+ <title>Release date</title>
+ <simpara>2008-09-22</simpara>
+ </note>
+
+ <para>
+ This release contains a variety of fixes from 8.0.17.
+ For information about new features in the 8.0 major release, see
+ <xref linkend="release-8-0">.
+ </para>
+
+ <sect2>
+ <title>Migration to Version 8.0.18</title>
+
+ <para>
+ A dump/restore is not required for those running 8.0.X.
+ However, if you are upgrading from a version earlier than 8.0.6,
+ see the release notes for 8.0.6.
+ </para>
+
+ </sect2>
+
+ <sect2>
+ <title>Changes</title>
+
+ <itemizedlist>
+
+ <listitem>
+ <para>
+ Widen local lock counters from 32 to 64 bits (Tom)
+ </para>
+
+ <para>
+ This responds to reports that the counters could overflow in
+ sufficiently long transactions, leading to unexpected <quote>lock is
+ already held</> errors.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add checks in executor startup to ensure that the tuples produced by an
+ <command>INSERT</> or <command>UPDATE</> will match the target table's
+ current rowtype (Tom)
+ </para>
+
+ <para>
+ <command>ALTER COLUMN TYPE</>, followed by re-use of a previously
+ cached plan, could produce this type of situation. The check protects
+ against data corruption and/or crashes that could ensue.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Fix datetime input functions to correctly detect integer overflow when
+ running on a 64-bit platform (Tom)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Improve performance of writing very long log messages to syslog (Tom)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Fix bug in backwards scanning of a cursor on a <literal>SELECT DISTINCT
+ ON</> query (Tom)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Fix planner to estimate that <literal>GROUP BY</> expressions yielding
+ boolean results always result in two groups, regardless of the
+ expressions' contents (Tom)
+ </para>
+
+ <para>
+ This is very substantially more accurate than the regular <literal>GROUP
+ BY</> estimate for certain boolean tests like <replaceable>col</>
+ <literal>IS NULL</>.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Fix PL/Tcl to behave correctly with Tcl 8.5, and to be more careful
+ about the encoding of data sent to or from Tcl (Tom)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Fix PL/Python to work with Python 2.5
+ </para>
+
+ <para>
+ This is a back-port of fixes made during the 8.2 development cycle.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Improve <application>pg_dump</> and <application>pg_restore</>'s
+ error reporting after failure to send a SQL command (Tom)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Fix <application>pg_ctl</> to properly preserve postmaster
+ command-line arguments across a <literal>restart</> (Bruce)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Update time zone data files to <application>tzdata</> release 2008f (for
+ DST law changes in Argentina, Bahamas, Brazil, Mauritius, Morocco,
+ Pakistan, Palestine, and Paraguay)
+ </para>
+ </listitem>
+
+ </itemizedlist>
+
+ </sect2>
+ </sect1>
+
<sect1 id="release-8-0-17">
<title>Release 8.0.17</title>
</sect2>
</sect1>
+ <sect1 id="release-7-4-22">
+ <title>Release 7.4.22</title>
+
+ <note>
+ <title>Release date</title>
+ <simpara>2008-09-22</simpara>
+ </note>
+
+ <para>
+ This release contains a variety of fixes from 7.4.21.
+ For information about new features in the 7.4 major release, see
+ <xref linkend="release-7-4">.
+ </para>
+
+ <sect2>
+ <title>Migration to Version 7.4.22</title>
+
+ <para>
+ A dump/restore is not required for those running 7.4.X.
+ However, if you are upgrading from a version earlier than 7.4.11,
+ see the release notes for 7.4.11.
+ </para>
+
+ </sect2>
+
+ <sect2>
+ <title>Changes</title>
+
+ <itemizedlist>
+
+ <listitem>
+ <para>
+ Fix datetime input functions to correctly detect integer overflow when
+ running on a 64-bit platform (Tom)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Improve performance of writing very long log messages to syslog (Tom)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Fix bug in backwards scanning of a cursor on a <literal>SELECT DISTINCT
+ ON</> query (Tom)
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Fix planner to estimate that <literal>GROUP BY</> expressions yielding
+ boolean results always result in two groups, regardless of the
+ expressions' contents (Tom)
+ </para>
+
+ <para>
+ This is very substantially more accurate than the regular <literal>GROUP
+ BY</> estimate for certain boolean tests like <replaceable>col</>
+ <literal>IS NULL</>.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Improve <application>pg_dump</> and <application>pg_restore</>'s
+ error reporting after failure to send a SQL command (Tom)
+ </para>
+ </listitem>
+
+ </itemizedlist>
+
+ </sect2>
+ </sect1>
+
<sect1 id="release-7-4-21">
<title>Release 7.4.21</title>
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