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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.302. Release 7.4.9</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-7-4-10.html" title="E.301. Release 7.4.10" /><link rel="next" href="release-7-4-8.html" title="E.303. Release 7.4.8" /></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.302. Release 7.4.9</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="release-7-4-10.html" title="E.301. Release 7.4.10">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-7-4-8.html" title="E.303. Release 7.4.8">Next</a></td></tr></table><hr></hr></div><div class="sect1" id="RELEASE-7-4-9"><div class="titlepage"><div><div><h2 class="title" style="clear: both">E.302. Release 7.4.9</h2></div></div></div><div class="toc"><dl class="toc"><dt><span class="sect2"><a href="release-7-4-9.html#id-1.11.6.306.4">E.302.1. Migration to Version 7.4.9</a></span></dt><dt><span class="sect2"><a href="release-7-4-9.html#id-1.11.6.306.5">E.302.2. Changes</a></span></dt></dl></div><p><strong>Release date: </strong>2005-10-04</p><p>
   This release contains a variety of fixes from 7.4.8.
   For information about new features in the 7.4 major release, see
   <a class="xref" href="release-7-4.html" title="E.311. Release 7.4">Section E.311</a>.
  </p><div class="sect2" id="id-1.11.6.306.4"><div class="titlepage"><div><div><h3 class="title">E.302.1. Migration to Version 7.4.9</h3></div></div></div><p>
    A dump/restore is not required for those running 7.4.X.  However,
    if you are upgrading from a version earlier than 7.4.8,
    see <a class="xref" href="release-7-4-8.html" title="E.303. Release 7.4.8">Section E.303</a>.
   </p></div><div class="sect2" id="id-1.11.6.306.5"><div class="titlepage"><div><div><h3 class="title">E.302.2. Changes</h3></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>Fix error that allowed <code class="command">VACUUM</code> to remove
<code class="literal">ctid</code> chains too soon, and add more checking in code that follows
<code class="literal">ctid</code> links</p><p>This fixes a long-standing problem that could cause crashes in very rare
circumstances.</p></li><li class="listitem"><p>Fix <code class="type">CHAR()</code> to properly pad spaces to the specified
length when using a multiple-byte character set (Yoshiyuki Asaba)</p><p>In prior releases, the padding of <code class="type">CHAR()</code> was incorrect
because it only padded to the specified number of bytes without
considering how many characters were stored.</p></li><li class="listitem"><p>Fix the sense of the test for read-only transaction
in <code class="command">COPY</code></p><p>The code formerly prohibited <code class="command">COPY TO</code>, where it should
prohibit <code class="command">COPY FROM</code>.
</p></li><li class="listitem"><p>Fix planning problem with outer-join ON clauses that reference
only the inner-side relation</p></li><li class="listitem"><p>Further fixes for <code class="literal">x FULL JOIN y ON true</code> corner
cases</p></li><li class="listitem"><p>Make <code class="function">array_in</code> and <code class="function">array_recv</code> more
paranoid about validating their OID parameter</p></li><li class="listitem"><p>Fix missing rows in queries like <code class="literal">UPDATE a=... WHERE
a...</code> with GiST index on column <code class="literal">a</code></p></li><li class="listitem"><p>Improve robustness of datetime parsing</p></li><li class="listitem"><p>Improve checking for partially-written WAL
pages</p></li><li class="listitem"><p>Improve robustness of signal handling when SSL is
enabled</p></li><li class="listitem"><p>Don't try to open more than <code class="literal">max_files_per_process</code>
files during postmaster startup</p></li><li class="listitem"><p>Various memory leakage fixes</p></li><li class="listitem"><p>Various portability improvements</p></li><li class="listitem"><p>Fix PL/pgSQL to handle <code class="literal">var := var</code> correctly when
the variable is of pass-by-reference type</p></li><li class="listitem"><p>Update <code class="filename">contrib/tsearch2</code> to use current Snowball
code</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-7-4-10.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-7-4-8.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">E.301. Release 7.4.10 </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> E.303. Release 7.4.8</td></tr></table></div></body></html>