<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >Release 7.4.17</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 8.4.12 Documentation" HREF="index.html"><LINK REL="UP" TITLE="Release Notes" HREF="release.html"><LINK REL="PREVIOUS" TITLE="Release 7.4.18" HREF="release-7-4-18.html"><LINK REL="NEXT" TITLE="Release 7.4.16" HREF="release-7-4-16.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="2012-05-31T23:30:11"></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" >PostgreSQL 8.4.12 Documentation</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="top" ><A HREF="release-7-4-18.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="10%" ALIGN="left" VALIGN="top" ><A HREF="release.html" >Fast Backward</A ></TD ><TD WIDTH="60%" ALIGN="center" VALIGN="bottom" >Appendix E. Release Notes</TD ><TD WIDTH="10%" ALIGN="right" VALIGN="top" ><A HREF="release.html" >Fast Forward</A ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="top" ><A HREF="release-7-4-16.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="SECT1" ><H1 CLASS="SECT1" ><A NAME="RELEASE-7-4-17" >E.122. Release 7.4.17</A ></H1 ><DIV CLASS="NOTE" ><BLOCKQUOTE CLASS="NOTE" ><P ><B >Release date: </B >2007-04-23</P ></BLOCKQUOTE ></DIV ><P > This release contains fixes from 7.4.16, including a security fix. For information about new features in the 7.4 major release, see <A HREF="release-7-4.html" >Section E.139</A >. </P ><DIV CLASS="SECT2" ><H2 CLASS="SECT2" ><A NAME="AEN109003" >E.122.1. Migration to Version 7.4.17</A ></H2 ><P > A dump/restore is not required for those running 7.4.X. However, if you are upgrading from a version earlier than 7.4.11, see the release notes for 7.4.11. </P ></DIV ><DIV CLASS="SECT2" ><H2 CLASS="SECT2" ><A NAME="AEN109006" >E.122.2. Changes</A ></H2 ><P ></P ><UL ><LI ><P > Support explicit placement of the temporary-table schema within <TT CLASS="VARNAME" >search_path</TT >, and disable searching it for functions and operators (Tom) </P ><P > This is needed to allow a security-definer function to set a truly secure value of <TT CLASS="VARNAME" >search_path</TT >. Without it, an unprivileged SQL user can use temporary objects to execute code with the privileges of the security-definer function (CVE-2007-2138). See <TT CLASS="COMMAND" >CREATE FUNCTION</TT > for more information. </P ></LI ><LI ><P > <TT CLASS="FILENAME" >/contrib/tsearch2</TT > crash fixes (Teodor) </P ></LI ><LI ><P > Fix potential-data-corruption bug in how <TT CLASS="COMMAND" >VACUUM FULL</TT > handles <TT CLASS="COMMAND" >UPDATE</TT > chains (Tom, Pavan Deolasee) </P ></LI ><LI ><P > Fix PANIC during enlargement of a hash index (bug introduced in 7.4.15) (Tom) </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-7-4-18.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-7-4-16.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >Release 7.4.18</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 7.4.16</TD ></TR ></TABLE ></DIV ></BODY ></HTML >