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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>E.248. Release 8.1.5</title><link rel="stylesheet" type="text/css" href="stylesheet.css" /><link rev="made" href="pgsql-docs@postgresql.org" /><meta name="generator" content="DocBook XSL Stylesheets V1.79.1" /><link rel="prev" href="release-8-1-6.html" title="E.247. Release 8.1.6" /><link rel="next" href="release-8-1-4.html" title="E.249. Release 8.1.4" /></head><body><div xmlns="http://www.w3.org/TR/xhtml1/transitional" class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">E.248. Release 8.1.5</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="release-8-1-6.html" title="E.247. Release 8.1.6">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="release.html" title="Appendix E. Release Notes">Up</a></td><th width="60%" align="center">Appendix E. Release Notes</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 11.1 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="release-8-1-4.html" title="E.249. Release 8.1.4">Next</a></td></tr></table><hr></hr></div><div class="sect1" id="RELEASE-8-1-5"><div class="titlepage"><div><div><h2 class="title" style="clear: both">E.248. Release 8.1.5</h2></div></div></div><div class="toc"><dl class="toc"><dt><span class="sect2"><a href="release-8-1-5.html#id-1.11.6.252.4">E.248.1. Migration to Version 8.1.5</a></span></dt><dt><span class="sect2"><a href="release-8-1-5.html#id-1.11.6.252.5">E.248.2. Changes</a></span></dt></dl></div><p><strong>Release date: </strong>2006-10-16</p><p>
   This release contains a variety of fixes from 8.1.4.
   For information about new features in the 8.1 major release, see
   <a class="xref" href="release-8-1.html" title="E.253. Release 8.1">Section E.253</a>.
  </p><div class="sect2" id="id-1.11.6.252.4"><div class="titlepage"><div><div><h3 class="title">E.248.1. Migration to Version 8.1.5</h3></div></div></div><p>
    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 <a class="xref" href="release-8-1-2.html" title="E.251. Release 8.1.2">Section E.251</a>.
   </p></div><div class="sect2" id="id-1.11.6.252.5"><div class="titlepage"><div><div><h3 class="title">E.248.2. Changes</h3></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>Disallow aggregate functions in <code class="command">UPDATE</code>
commands, except within sub-SELECTs (Tom)</p><p>The behavior of such an aggregate was unpredictable, and in 8.1.X
could cause a crash, so it has been disabled.  The SQL standard does not allow
this either.</p></li><li class="listitem"><p>Fix core dump when an untyped literal is taken as
ANYARRAY</p></li><li class="listitem"><p>Fix core dump in duration logging for extended query protocol
when a <code class="command">COMMIT</code> or <code class="command">ROLLBACK</code> is
executed</p></li><li class="listitem"><p>Fix mishandling of AFTER triggers when query contains a SQL
function returning multiple rows (Tom)</p></li><li class="listitem"><p>Fix <code class="command">ALTER TABLE ... TYPE</code> to recheck
<code class="literal">NOT NULL</code> for <code class="literal">USING</code> clause (Tom)</p></li><li class="listitem"><p>Fix <code class="function">string_to_array()</code> to handle overlapping
 matches for the separator string</p><p>For example, <code class="literal">string_to_array('123xx456xxx789', 'xx')</code>.
</p></li><li class="listitem"><p>Fix <code class="function">to_timestamp()</code> for
<code class="literal">AM</code>/<code class="literal">PM</code> formats (Bruce)</p></li><li class="listitem"><p>Fix autovacuum's calculation that decides whether
 <code class="command">ANALYZE</code> is needed (Alvaro)</p></li><li class="listitem"><p>Fix corner cases in pattern matching for
 <span class="application">psql</span>'s <code class="literal">\d</code> commands</p></li><li class="listitem"><p>Fix index-corrupting bugs in /contrib/ltree
 (Teodor)</p></li><li class="listitem"><p>Numerous robustness fixes in <span class="application">ecpg</span> (Joachim
Wieland)</p></li><li class="listitem"><p>Fix backslash escaping in /contrib/dbmirror</p></li><li class="listitem"><p>Minor fixes in /contrib/dblink and /contrib/tsearch2</p></li><li class="listitem"><p>Efficiency improvements in hash tables and bitmap index scans
(Tom)</p></li><li class="listitem"><p>Fix instability of statistics collection on Windows (Tom, Andrew)</p></li><li class="listitem"><p>Fix <code class="varname">statement_timeout</code> to use the proper
units on Win32 (Bruce)</p><p>In previous Win32 8.1.X versions, the delay was off by a factor of
100.</p></li><li class="listitem"><p>Fixes for <acronym class="acronym">MSVC</acronym> and <span class="productname">Borland C++</span>
compilers (Hiroshi Saito)</p></li><li class="listitem"><p>Fixes for <span class="systemitem">AIX</span> and
<span class="productname">Intel</span> compilers (Tom)</p></li><li class="listitem"><p>Fix rare bug in continuous archiving (Tom)</p></li></ul></div></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="release-8-1-6.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="release.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="release-8-1-4.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">E.247. Release 8.1.6 </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> E.249. Release 8.1.4</td></tr></table></div></body></html>