| | 65 | |
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| | 66 | <sect1 id="release-7-4-22"> |
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| | 67 | <title>Release 7.4.22</title> |
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| | 68 | |
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| | 69 | <note> |
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| | 70 | <title>Release date</title> |
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| | 71 | <simpara>2008-09-22</simpara> |
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| | 72 | </note> |
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| | 73 | |
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| | 74 | <para> |
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| | 75 | This release contains a variety of fixes from 7.4.21. |
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| | 76 | For information about new features in the 7.4 major release, see |
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| | 77 | <xref linkend="release-7-4"/>. |
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| | 78 | </para> |
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| | 79 | |
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| | 80 | <sect2> |
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| | 81 | <title>Migration to Version 7.4.22</title> |
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| | 82 | |
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| | 83 | <para> |
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| | 84 | A dump/restore is not required for those running 7.4.X. |
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| | 85 | However, if you are upgrading from a version earlier than 7.4.11, |
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| | 86 | see the release notes for 7.4.11. |
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| | 87 | </para> |
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| | 88 | |
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| | 89 | </sect2> |
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| | 90 | |
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| | 91 | <sect2> |
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| | 92 | <title>Changes</title> |
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| | 93 | |
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| | 94 | <itemizedlist> |
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| | 95 | |
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| | 96 | <listitem> |
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| | 97 | <para> |
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| | 98 | Fix datetime input functions to correctly detect integer overflow when |
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| | 99 | running on a 64-bit platform (Tom) |
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| | 100 | </para> |
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| | 101 | </listitem> |
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| | 102 | |
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| | 103 | <listitem> |
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| | 104 | <para> |
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| | 105 | Improve performance of writing very long log messages to syslog (Tom) |
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| | 106 | </para> |
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| | 107 | </listitem> |
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| | 108 | |
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| | 109 | <listitem> |
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| | 110 | <para> |
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| | 111 | Fix bug in backwards scanning of a cursor on a <literal>SELECT DISTINCT |
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| | 112 | ON</> query (Tom) |
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| | 113 | </para> |
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| | 114 | </listitem> |
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| | 115 | |
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| | 116 | <listitem> |
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| | 117 | <para> |
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| | 118 | Fix planner to estimate that <literal>GROUP BY</> expressions yielding |
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| | 119 | boolean results always result in two groups, regardless of the |
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| | 120 | expressions' contents (Tom) |
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| | 121 | </para> |
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| | 122 | |
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| | 123 | <para> |
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| | 124 | This is very substantially more accurate than the regular <literal>GROUP |
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| | 125 | BY</literal> estimate for certain boolean tests like <replaceable>col</replaceable> |
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| | 126 | <literal>IS NULL</literal>. |
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| | 127 | </para> |
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| | 128 | </listitem> |
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| | 129 | |
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| | 130 | <listitem> |
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| | 131 | <para> |
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| | 132 | Improve <application>pg_dump</application> and <application>pg_restore</application>'s |
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| | 133 | error reporting after failure to send a SQL command (Tom) |
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| | 134 | </para> |
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| | 135 | </listitem> |
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| | 136 | |
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| | 137 | </itemizedlist> |
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| | 138 | |
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| | 139 | </sect2> |
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| | 140 | </sect1> |
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