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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.236. Release 8.1.17</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-8-1-18.html" title="E.235. Release 8.1.18" /><link rel="next" href="release-8-1-16.html" title="E.237. Release 8.1.16" /></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.236. Release 8.1.17</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="release-8-1-18.html" title="E.235. Release 8.1.18">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-8-1-16.html" title="E.237. Release 8.1.16">Next</a></td></tr></table><hr></hr></div><div class="sect1" id="RELEASE-8-1-17"><div class="titlepage"><div><div><h2 class="title" style="clear: both">E.236. Release 8.1.17</h2></div></div></div><div class="toc"><dl class="toc"><dt><span class="sect2"><a href="release-8-1-17.html#id-1.11.6.240.4">E.236.1. Migration to Version 8.1.17</a></span></dt><dt><span class="sect2"><a href="release-8-1-17.html#id-1.11.6.240.5">E.236.2. Changes</a></span></dt></dl></div><p><strong>Release date: </strong>2009-03-16</p><p> This release contains a variety of fixes from 8.1.16. 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-1.11.6.240.4"><div class="titlepage"><div><div><h3 class="title">E.236.1. Migration to Version 8.1.17</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 8.1.15, see <a class="xref" href="release-8-1-15.html" title="E.238. Release 8.1.15">Section E.238</a>. </p></div><div class="sect2" id="id-1.11.6.240.5"><div class="titlepage"><div><div><h3 class="title">E.236.2. Changes</h3></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p> Prevent error recursion crashes when encoding conversion fails (Tom) </p><p> This change extends fixes made in the last two minor releases for related failure scenarios. The previous fixes were narrowly tailored for the original problem reports, but we have now recognized that <span class="emphasis"><em>any</em></span> error thrown by an encoding conversion function could potentially lead to infinite recursion while trying to report the error. The solution therefore is to disable translation and encoding conversion and report the plain-ASCII form of any error message, if we find we have gotten into a recursive error reporting situation. (CVE-2009-0922) </p></li><li class="listitem"><p> Disallow <code class="command">CREATE CONVERSION</code> with the wrong encodings for the specified conversion function (Heikki) </p><p> This prevents one possible scenario for encoding conversion failure. The previous change is a backstop to guard against other kinds of failures in the same area. </p></li><li class="listitem"><p> Fix core dump when <code class="function">to_char()</code> is given format codes that are inappropriate for the type of the data argument (Tom) </p></li><li class="listitem"><p> Fix decompilation of <code class="literal">CASE WHEN</code> with an implicit coercion (Tom) </p><p> This mistake could lead to Assert failures in an Assert-enabled build, or an <span class="quote">“<span class="quote">unexpected CASE WHEN clause</span>”</span> error message in other cases, when trying to examine or dump a view. </p></li><li class="listitem"><p> Fix possible misassignment of the owner of a TOAST table's rowtype (Tom) </p><p> If <code class="command">CLUSTER</code> or a rewriting variant of <code class="command">ALTER TABLE</code> were executed by someone other than the table owner, the <code class="structname">pg_type</code> entry for the table's TOAST table would end up marked as owned by that someone. This caused no immediate problems, since the permissions on the TOAST rowtype aren't examined by any ordinary database operation. However, it could lead to unexpected failures if one later tried to drop the role that issued the command (in 8.1 or 8.2), or <span class="quote">“<span class="quote">owner of data type appears to be invalid</span>”</span> warnings from <span class="application">pg_dump</span> after having done so (in 8.3). </p></li><li class="listitem"><p> Clean up PL/pgSQL error status variables fully at block exit (Ashesh Vashi and Dave Page) </p><p> This is not a problem for PL/pgSQL itself, but the omission could cause the PL/pgSQL Debugger to crash while examining the state of a function. </p></li><li class="listitem"><p> Add <code class="literal">MUST</code> (Mauritius Island Summer Time) to the default list of known timezone abbreviations (Xavier Bugaud) </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-8-1-18.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-8-1-16.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">E.235. Release 8.1.18 </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> E.237. Release 8.1.16</td></tr></table></div></body></html>