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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >Release 7.4.6</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK REV="MADE" HREF="mailto:pgsql-docs@postgresql.org"><LINK REL="HOME" TITLE="PostgreSQL 9.2.24 Documentation" HREF="index.html"><LINK REL="UP" TITLE="Release Notes" HREF="release.html"><LINK REL="PREVIOUS" TITLE="Release 7.4.7" HREF="release-7-4-7.html"><LINK REL="NEXT" TITLE="Release 7.4.5" HREF="release-7-4-5.html"><LINK REL="STYLESHEET" TYPE="text/css" HREF="stylesheet.css"><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=ISO-8859-1"><META NAME="creation" CONTENT="2017-11-06T22:43:11"></HEAD ><BODY CLASS="SECT1" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="5" ALIGN="center" VALIGN="bottom" ><A HREF="index.html" >PostgreSQL 9.2.24 Documentation</A ></TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="top" ><A TITLE="Release 7.4.7" HREF="release-7-4-7.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="10%" ALIGN="left" VALIGN="top" ><A HREF="release.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="60%" ALIGN="center" VALIGN="bottom" >Appendix E. Release Notes</TD ><TD WIDTH="20%" ALIGN="right" VALIGN="top" ><A TITLE="Release 7.4.5" HREF="release-7-4-5.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="SECT1" ><H1 CLASS="SECT1" ><A NAME="RELEASE-7-4-6" >E.221. Release 7.4.6</A ></H1 ><DIV CLASS="FORMALPARA" ><P ><B >Release date: </B >2004-10-22</P ></DIV ><P > This release contains a variety of fixes from 7.4.5. For information about new features in the 7.4 major release, see <A HREF="release-7-4.html" >Section E.227</A >. </P ><DIV CLASS="SECT2" ><H2 CLASS="SECT2" ><A NAME="AEN141535" >E.221.1. Migration to Version 7.4.6</A ></H2 ><P > A dump/restore is not required for those running 7.4.X. </P ></DIV ><DIV CLASS="SECT2" ><H2 CLASS="SECT2" ><A NAME="AEN141538" >E.221.2. Changes</A ></H2 ><P ></P ><UL ><LI ><P >Repair possible failure to update hint bits on disk</P ><P >Under rare circumstances this oversight could lead to <SPAN CLASS="QUOTE" >"could not access transaction status"</SPAN > failures, which qualifies it as a potential-data-loss bug.</P ></LI ><LI ><P >Ensure that hashed outer join does not miss tuples</P ><P >Very large left joins using a hash join plan could fail to output unmatched left-side rows given just the right data distribution.</P ></LI ><LI ><P >Disallow running <SPAN CLASS="APPLICATION" >pg_ctl</SPAN > as root</P ><P >This is to guard against any possible security issues.</P ></LI ><LI ><P >Avoid using temp files in <TT CLASS="FILENAME" >/tmp</TT > in <TT CLASS="COMMAND" >make_oidjoins_check</TT ></P ><P >This has been reported as a security issue, though it's hardly worthy of concern since there is no reason for non-developers to use this script anyway.</P ></LI ><LI ><P >Prevent forced backend shutdown from re-emitting prior command result</P ><P >In rare cases, a client might think that its last command had succeeded when it really had been aborted by forced database shutdown.</P ></LI ><LI ><P >Repair bug in <CODE CLASS="FUNCTION" >pg_stat_get_backend_idset</CODE ></P ><P >This could lead to misbehavior in some of the system-statistics views.</P ></LI ><LI ><P >Fix small memory leak in postmaster</P ></LI ><LI ><P >Fix <SPAN CLASS="QUOTE" >"expected both swapped tables to have TOAST tables"</SPAN > bug</P ><P >This could arise in cases such as CLUSTER after ALTER TABLE DROP COLUMN.</P ></LI ><LI ><P >Prevent <TT CLASS="LITERAL" >pg_ctl restart</TT > from adding <TT CLASS="LITERAL" >-D</TT > multiple times</P ></LI ><LI ><P >Fix problem with NULL values in GiST indexes</P ></LI ><LI ><P ><TT CLASS="LITERAL" >::</TT > is no longer interpreted as a variable in an ECPG prepare statement</P ></LI ></UL ></DIV ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="release-7-4-7.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="release-7-4-5.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >Release 7.4.7</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="release.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >Release 7.4.5</TD ></TR ></TABLE ></DIV ></BODY ></HTML >