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<?xml version="1.0" encoding="UTF-8" standalone="no"?> <!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.251. Release 8.1.2</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-8-1-3.html" title="E.250. Release 8.1.3" /><link rel="next" href="release-8-1-1.html" title="E.252. Release 8.1.1" /></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.251. Release 8.1.2</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="release-8-1-3.html" title="E.250. Release 8.1.3">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-8-1-1.html" title="E.252. Release 8.1.1">Next</a></td></tr></table><hr></hr></div><div class="sect1" id="RELEASE-8-1-2"><div class="titlepage"><div><div><h2 class="title" style="clear: both">E.251. Release 8.1.2</h2></div></div></div><div class="toc"><dl class="toc"><dt><span class="sect2"><a href="release-8-1-2.html#id-1.11.6.255.4">E.251.1. Migration to Version 8.1.2</a></span></dt><dt><span class="sect2"><a href="release-8-1-2.html#id-1.11.6.255.5">E.251.2. Changes</a></span></dt></dl></div><p><strong>Release date: </strong>2006-01-09</p><p> This release contains a variety of fixes from 8.1.1. 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-1.11.6.255.4"><div class="titlepage"><div><div><h3 class="title">E.251.1. Migration to Version 8.1.2</h3></div></div></div><p> A dump/restore is not required for those running 8.1.X. However, you might need to <code class="command">REINDEX</code> indexes on textual columns after updating, if you are affected by the locale or <span class="application">plperl</span> issues described below. </p></div><div class="sect2" id="id-1.11.6.255.5"><div class="titlepage"><div><div><h3 class="title">E.251.2. Changes</h3></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>Fix Windows code so that postmaster will continue rather than exit if there is no more room in ShmemBackendArray (Magnus)</p><p>The previous behavior could lead to a denial-of-service situation if too many connection requests arrive close together. This applies <span class="emphasis"><em>only</em></span> to the Windows port.</p></li><li class="listitem"><p>Fix bug introduced in 8.0 that could allow ReadBuffer to return an already-used page as new, potentially causing loss of recently-committed data (Tom)</p></li><li class="listitem"><p>Fix for protocol-level Describe messages issued outside a transaction or in a failed transaction (Tom)</p></li><li class="listitem"><p>Fix character string comparison for locales that consider different character combinations as equal, such as Hungarian (Tom)</p><p>This might require <code class="command">REINDEX</code> to fix existing indexes on textual columns.</p></li><li class="listitem"><p>Set locale environment variables during postmaster startup to ensure that <span class="application">plperl</span> won't change the locale later</p><p>This fixes a problem that occurred if the <span class="application">postmaster</span> was started with environment variables specifying a different locale than what <span class="application">initdb</span> had been told. Under these conditions, any use of <span class="application">plperl</span> was likely to lead to corrupt indexes. You might need <code class="command">REINDEX</code> to fix existing indexes on textual columns if this has happened to you.</p></li><li class="listitem"><p>Allow more flexible relocation of installation directories (Tom)</p><p>Previous releases supported relocation only if all installation directory paths were the same except for the last component.</p></li><li class="listitem"><p>Prevent crashes caused by the use of <code class="literal">ISO-8859-5</code> and <code class="literal">ISO-8859-9</code> encodings (Tatsuo)</p></li><li class="listitem"><p>Fix longstanding bug in strpos() and regular expression handling in certain rarely used Asian multi-byte character sets (Tatsuo) </p></li><li class="listitem"><p>Fix bug where COPY CSV mode considered any <code class="literal">\.</code> to terminate the copy data</p><p>The new code requires <code class="literal">\.</code> to appear alone on a line, as per documentation.</p></li><li class="listitem"><p>Make COPY CSV mode quote a literal data value of <code class="literal">\.</code> to ensure it cannot be interpreted as the end-of-data marker (Bruce)</p></li><li class="listitem"><p>Various fixes for functions returning <code class="literal">RECORD</code>s (Tom) </p></li><li class="listitem"><p>Fix processing of <code class="filename">postgresql.conf</code> so a final line with no newline is processed properly (Tom) </p></li><li class="listitem"><p>Fix bug in <code class="filename">/contrib/pgcrypto</code> gen_salt, which caused it not to use all available salt space for MD5 and XDES algorithms (Marko Kreen, Solar Designer)</p><p>Salts for Blowfish and standard DES are unaffected.</p></li><li class="listitem"><p>Fix autovacuum crash when processing expression indexes </p></li><li class="listitem"><p>Fix <code class="filename">/contrib/dblink</code> to throw an error, rather than crashing, when the number of columns specified is different from what's actually returned by the query (Joe)</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-8-1-3.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-8-1-1.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">E.250. Release 8.1.3 </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> E.252. Release 8.1.1</td></tr></table></div></body></html>