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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.222. Release 8.2.7</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-8-2-8.html" title="E.221. Release 8.2.8" /><link rel="next" href="release-8-2-6.html" title="E.223. Release 8.2.6" /></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.222. Release 8.2.7</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="release-8-2-8.html" title="E.221. Release 8.2.8">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-8-2-6.html" title="E.223. Release 8.2.6">Next</a></td></tr></table><hr></hr></div><div class="sect1" id="RELEASE-8-2-7"><div class="titlepage"><div><div><h2 class="title" style="clear: both">E.222. Release 8.2.7</h2></div></div></div><div class="toc"><dl class="toc"><dt><span class="sect2"><a href="release-8-2-7.html#id-1.11.6.226.4">E.222.1. Migration to Version 8.2.7</a></span></dt><dt><span class="sect2"><a href="release-8-2-7.html#id-1.11.6.226.5">E.222.2. Changes</a></span></dt></dl></div><p><strong>Release date: </strong>2008-03-17</p><p>
   This release contains a variety of fixes from 8.2.6.
   For information about new features in the 8.2 major release, see
   <a class="xref" href="release-8-2.html" title="E.229. Release 8.2">Section E.229</a>.
  </p><div class="sect2" id="id-1.11.6.226.4"><div class="titlepage"><div><div><h3 class="title">E.222.1. Migration to Version 8.2.7</h3></div></div></div><p>
    A dump/restore is not required for those running 8.2.X.
    However, you might need to <code class="command">REINDEX</code> indexes on textual
    columns after updating, if you are affected by the Windows locale
    issue described below.
   </p></div><div class="sect2" id="id-1.11.6.226.5"><div class="titlepage"><div><div><h3 class="title">E.222.2. Changes</h3></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
      Fix character string comparison for Windows locales that consider
      different character combinations as equal (Tom)
     </p><p>
      This fix applies only on Windows and only when using UTF-8
      database encoding.  The same fix was made for all other cases
      over two years ago, but Windows with UTF-8 uses a separate code
      path that was not updated.  If you are using a locale that
      considers some non-identical strings as equal, you may need to
      <code class="command">REINDEX</code> to fix existing indexes on textual columns.
     </p></li><li class="listitem"><p>
      Repair potential deadlock between concurrent <code class="command">VACUUM FULL</code>
      operations on different system catalogs (Tom)
     </p></li><li class="listitem"><p>
      Fix longstanding <code class="command">LISTEN</code>/<code class="command">NOTIFY</code>
      race condition (Tom)
     </p><p>
      In rare cases a session that had just executed a
      <code class="command">LISTEN</code> might not get a notification, even though
      one would be expected because the concurrent transaction executing
      <code class="command">NOTIFY</code> was observed to commit later.
     </p><p>
      A side effect of the fix is that a transaction that has executed
      a not-yet-committed <code class="command">LISTEN</code> command will not see any
      row in <code class="structname">pg_listener</code> for the <code class="command">LISTEN</code>,
      should it choose to look; formerly it would have.  This behavior
      was never documented one way or the other, but it is possible that
      some applications depend on the old behavior.
     </p></li><li class="listitem"><p>
      Disallow <code class="command">LISTEN</code> and <code class="command">UNLISTEN</code> within a
      prepared transaction (Tom)
     </p><p>
      This was formerly allowed but trying to do it had various unpleasant
      consequences, notably that the originating backend could not exit
      as long as an <code class="command">UNLISTEN</code> remained uncommitted.
     </p></li><li class="listitem"><p>
      Disallow dropping a temporary table within a
      prepared transaction (Heikki)
     </p><p>
      This was correctly disallowed by 8.1, but the check was inadvertently
      broken in 8.2.
     </p></li><li class="listitem"><p>
      Fix rare crash when an error occurs during a query using a hash index
      (Heikki)
     </p></li><li class="listitem"><p>
      Fix memory leaks in certain usages of set-returning functions (Neil)
     </p></li><li class="listitem"><p>
      Fix input of datetime values for February 29 in years BC (Tom)
     </p><p>
      The former coding was mistaken about which years were leap years.
     </p></li><li class="listitem"><p>
      Fix <span class="quote">“<span class="quote">unrecognized node type</span>”</span> error in some variants of
      <code class="command">ALTER OWNER</code> (Tom)
     </p></li><li class="listitem"><p>
      Ensure <code class="structname">pg_stat_activity</code>.<code class="structfield">waiting</code> flag
      is cleared when a lock wait is aborted (Tom)
     </p></li><li class="listitem"><p>
      Fix handling of process permissions on Windows Vista (Dave, Magnus)
     </p><p>
      In particular, this fix allows starting the server as the Administrator
      user.
     </p></li><li class="listitem"><p>
      Update time zone data files to <span class="application">tzdata</span> release 2008a
      (in particular, recent Chile changes); adjust timezone abbreviation
      <code class="literal">VET</code> (Venezuela) to mean UTC-4:30, not UTC-4:00 (Tom)
     </p></li><li class="listitem"><p>
      Fix <span class="application">pg_ctl</span> to correctly extract the postmaster's port
      number from command-line options (Itagaki Takahiro, Tom)
     </p><p>
      Previously, <code class="literal">pg_ctl start -w</code> could try to contact the
      postmaster on the wrong port, leading to bogus reports of startup
      failure.
     </p></li><li class="listitem"><p>
      Use <code class="option">-fwrapv</code> to defend against possible misoptimization
      in recent <span class="application">gcc</span> versions (Tom)
     </p><p>
      This is known to be necessary when building <span class="productname">PostgreSQL</span>
      with <span class="application">gcc</span> 4.3 or later.
     </p></li><li class="listitem"><p>
      Correctly enforce <code class="varname">statement_timeout</code> values longer
      than <code class="literal">INT_MAX</code> microseconds (about 35 minutes) (Tom)
     </p><p>
      This bug affects only builds with <code class="option">--enable-integer-datetimes</code>.
     </p></li><li class="listitem"><p>
      Fix <span class="quote">“<span class="quote">unexpected PARAM_SUBLINK ID</span>”</span> planner error when
      constant-folding simplifies a sub-select (Tom)
     </p></li><li class="listitem"><p>
      Fix logical errors in constraint-exclusion handling of <code class="literal">IS
      NULL</code> and <code class="literal">NOT</code> expressions (Tom)
     </p><p>
      The planner would sometimes exclude partitions that should not
      have been excluded because of the possibility of NULL results.
     </p></li><li class="listitem"><p>
      Fix another cause of <span class="quote">“<span class="quote">failed to build any N-way joins</span>”</span>
      planner errors (Tom)
     </p><p>
      This could happen in cases where a clauseless join needed to be
      forced before a join clause could be exploited.
     </p></li><li class="listitem"><p>
      Fix incorrect constant propagation in outer-join planning (Tom)
     </p><p>
      The planner could sometimes incorrectly conclude that a variable
      could be constrained to be equal to a constant, leading
      to wrong query results.
     </p></li><li class="listitem"><p>
      Fix display of constant expressions in <code class="literal">ORDER BY</code>
      and <code class="literal">GROUP BY</code> (Tom)
     </p><p>
      An explicitly casted constant would be shown incorrectly.  This could
      for example lead to corruption of a view definition during
      dump and reload.
     </p></li><li class="listitem"><p>
      Fix <span class="application">libpq</span> to handle NOTICE messages correctly
      during COPY OUT (Tom)
     </p><p>
      This failure has only been observed to occur when a user-defined
      datatype's output routine issues a NOTICE, but there is no
      guarantee it couldn't happen due to other causes.
     </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-8-2-8.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-8-2-6.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">E.221. Release 8.2.8 </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> E.223. Release 8.2.6</td></tr></table></div></body></html>