Linux SRV-16 6.18.44-paas #1 SMP PREEMPT_DYNAMIC Thu Aug 13 10:08:12 UTC 2026 x86_64
/proc/self/root/proc/self/root/opt/postgresql-11/doc/html/
//proc/self/root/proc/self/root/opt/postgresql-11/doc/html/release-8-1-19.html
 <?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.234. Release 8.1.19</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-8-1-20.html" title="E.233. Release 8.1.20" /><link rel="next" href="release-8-1-18.html" title="E.235. Release 8.1.18" /></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.234. Release 8.1.19</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="release-8-1-20.html" title="E.233. Release 8.1.20">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-8-1-18.html" title="E.235. Release 8.1.18">Next</a></td></tr></table><hr></hr></div><div class="sect1" id="RELEASE-8-1-19"><div class="titlepage"><div><div><h2 class="title" style="clear: both">E.234. Release 8.1.19</h2></div></div></div><div class="toc"><dl class="toc"><dt><span class="sect2"><a href="release-8-1-19.html#id-1.11.6.238.4">E.234.1. Migration to Version 8.1.19</a></span></dt><dt><span class="sect2"><a href="release-8-1-19.html#id-1.11.6.238.5">E.234.2. Changes</a></span></dt></dl></div><p><strong>Release date: </strong>2009-12-14</p><p>
   This release contains a variety of fixes from 8.1.18.
   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-1.11.6.238.4"><div class="titlepage"><div><div><h3 class="title">E.234.1. Migration to Version 8.1.19</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 8.1.18,
    see <a class="xref" href="release-8-1-18.html" title="E.235. Release 8.1.18">Section E.235</a>.
   </p></div><div class="sect2" id="id-1.11.6.238.5"><div class="titlepage"><div><div><h3 class="title">E.234.2. Changes</h3></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
      Protect against indirect security threats caused by index functions
      changing session-local state (Gurjeet Singh, Tom)
     </p><p>
      This change prevents allegedly-immutable index functions from possibly
      subverting a superuser's session (CVE-2009-4136).
     </p></li><li class="listitem"><p>
      Reject SSL certificates containing an embedded null byte in the common
      name (CN) field (Magnus)
     </p><p>
      This prevents unintended matching of a certificate to a server or client
      name during SSL validation (CVE-2009-4034).
     </p></li><li class="listitem"><p>
      Fix possible crash during backend-startup-time cache initialization (Tom)
     </p></li><li class="listitem"><p>
      Prevent signals from interrupting <code class="literal">VACUUM</code> at unsafe times
      (Alvaro)
     </p><p>
      This fix prevents a PANIC if a <code class="literal">VACUUM FULL</code> is canceled
      after it's already committed its tuple movements, as well as transient
      errors if a plain <code class="literal">VACUUM</code> is interrupted after having
      truncated the table.
     </p></li><li class="listitem"><p>
      Fix possible crash due to integer overflow in hash table size
      calculation (Tom)
     </p><p>
      This could occur with extremely large planner estimates for the size of
      a hashjoin's result.
     </p></li><li class="listitem"><p>
      Fix very rare crash in <code class="type">inet</code>/<code class="type">cidr</code> comparisons (Chris
      Mikkelson)
     </p></li><li class="listitem"><p>
      Ensure that shared tuple-level locks held by prepared transactions are
      not ignored (Heikki)
     </p></li><li class="listitem"><p>
      Fix premature drop of temporary files used for a cursor that is accessed
      within a subtransaction (Heikki)
     </p></li><li class="listitem"><p>
      Fix PAM password processing to be more robust (Tom)
     </p><p>
      The previous code is known to fail with the combination of the Linux
      <code class="literal">pam_krb5</code> PAM module with Microsoft Active Directory as the
      domain controller.  It might have problems elsewhere too, since it was
      making unjustified assumptions about what arguments the PAM stack would
      pass to it.
     </p></li><li class="listitem"><p>
      Fix processing of ownership dependencies during <code class="literal">CREATE OR
      REPLACE FUNCTION</code> (Tom)
     </p></li><li class="listitem"><p>
      Ensure that Perl arrays are properly converted to
      <span class="productname">PostgreSQL</span> arrays when returned by a set-returning
      PL/Perl function (Andrew Dunstan, Abhijit Menon-Sen)
     </p><p>
      This worked correctly already for non-set-returning functions.
     </p></li><li class="listitem"><p>
      Fix rare crash in exception processing in PL/Python (Peter)
     </p></li><li class="listitem"><p>
      Ensure <span class="application">psql</span>'s flex module is compiled with the correct
      system header definitions (Tom)
     </p><p>
      This fixes build failures on platforms where
      <code class="literal">--enable-largefile</code> causes incompatible changes in the
      generated code.
     </p></li><li class="listitem"><p>
      Make the postmaster ignore any <code class="literal">application_name</code> parameter in
      connection request packets, to improve compatibility with future libpq
      versions (Tom)
     </p></li><li class="listitem"><p>
      Update time zone data files to <span class="application">tzdata</span> release 2009s
      for DST law changes in Antarctica, Argentina, Bangladesh, Fiji,
      Novokuznetsk, Pakistan, Palestine, Samoa, Syria; also historical
      corrections for Hong Kong.
     </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-8-1-20.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-8-1-18.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">E.233. Release 8.1.20 </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> E.235. Release 8.1.18</td></tr></table></div></body></html>