Linux SRV-16 6.18.44-paas #1 SMP PREEMPT_DYNAMIC Thu Aug 13 10:08:12 UTC 2026 x86_64
/opt/postgresql-11.1-201812121535/doc/html/
//opt/postgresql-11.1-201812121535/doc/html/release-8-3-1.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.204. Release 8.3.1</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-8-3-2.html" title="E.203. Release 8.3.2" /><link rel="next" href="release-8-3.html" title="E.205. Release 8.3" /></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.204. Release 8.3.1</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="release-8-3-2.html" title="E.203. Release 8.3.2">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-8-3.html" title="E.205. Release 8.3">Next</a></td></tr></table><hr></hr></div><div class="sect1" id="RELEASE-8-3-1"><div class="titlepage"><div><div><h2 class="title" style="clear: both">E.204. Release 8.3.1</h2></div></div></div><div class="toc"><dl class="toc"><dt><span class="sect2"><a href="release-8-3-1.html#id-1.11.6.208.4">E.204.1. Migration to Version 8.3.1</a></span></dt><dt><span class="sect2"><a href="release-8-3-1.html#id-1.11.6.208.5">E.204.2. Changes</a></span></dt></dl></div><p><strong>Release date: </strong>2008-03-17</p><p>
   This release contains a variety of fixes from 8.3.0.
   For information about new features in the 8.3 major release, see
   <a class="xref" href="release-8-3.html" title="E.205. Release 8.3">Section E.205</a>.
  </p><div class="sect2" id="id-1.11.6.208.4"><div class="titlepage"><div><div><h3 class="title">E.204.1. Migration to Version 8.3.1</h3></div></div></div><p>
    A dump/restore is not required for those running 8.3.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-1.11.6.208.5"><div class="titlepage"><div><div><h3 class="title">E.204.2. 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 corner-case bugs in <code class="command">VACUUM FULL</code> (Tom)
     </p><p>
      A potential deadlock between concurrent <code class="command">VACUUM FULL</code>
      operations on different system catalogs was introduced in 8.2.
      This has now been corrected.  8.3 made this worse because the
      deadlock could occur within a critical code section, making it
      a PANIC rather than just ERROR condition.
     </p><p>
      Also, a <code class="command">VACUUM FULL</code> that failed partway through
      vacuuming a system catalog could result in cache corruption in
      concurrent database sessions.
     </p><p>
      Another <code class="command">VACUUM FULL</code> bug introduced in 8.3 could
      result in a crash or out-of-memory report when dealing with
      pages containing no live tuples.
     </p></li><li class="listitem"><p>
      Fix misbehavior of foreign key checks involving <code class="type">character</code>
      or <code class="type">bit</code> columns (Tom)
     </p><p>
      If the referencing column were of a different but compatible type
      (for instance <code class="type">varchar</code>), the constraint was enforced incorrectly.
     </p></li><li class="listitem"><p>
      Avoid needless deadlock failures in no-op foreign-key checks (Stephan
      Szabo, Tom)
     </p></li><li class="listitem"><p>
      Fix possible core dump when re-planning a prepared query (Tom)
     </p><p>
      This bug affected only protocol-level prepare operations, not
      SQL <code class="command">PREPARE</code>, and so tended to be seen only with
      JDBC, DBI, and other client-side drivers that use prepared
      statements heavily.
     </p></li><li class="listitem"><p>
      Fix possible failure when re-planning a query that calls an SPI-using
      function (Tom)
     </p></li><li class="listitem"><p>
      Fix failure in row-wise comparisons involving columns of different
      datatypes (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 and 8.3.
     </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 incorrect comparison of <code class="type">tsquery</code> values (Teodor)
     </p></li><li class="listitem"><p>
      Fix incorrect behavior of <code class="literal">LIKE</code> with non-ASCII characters
      in single-byte encodings (Rolf Jentsch)
     </p></li><li class="listitem"><p>
      Disable <code class="function">xmlvalidate</code> (Tom)
     </p><p>
      This function should have been removed before 8.3 release, but
      was inadvertently left in the source code.  It poses a small
      security risk since unprivileged users could use it to read the
      first few characters of any file accessible to the server.
     </p></li><li class="listitem"><p>
      Fix memory leaks in certain usages of set-returning functions (Neil)
     </p></li><li class="listitem"><p>
      Make <code class="function">encode(<em class="replaceable"><code>bytea</code></em>, 'escape')</code> convert all
      high-bit-set byte values into <code class="literal">\</code><em class="replaceable"><code>nnn</code></em> octal
      escape sequences (Tom)
     </p><p>
      This is necessary to avoid encoding problems when the database
      encoding is multi-byte.  This change could pose compatibility issues
      for applications that are expecting specific results from
      <code class="function">encode</code>.
     </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>
      Avoid tablespace permissions errors in <code class="command">CREATE TABLE LIKE
      INCLUDING INDEXES</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">ecpg</span> problems with arrays (Michael)
     </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>
      Enable building <code class="filename">contrib/uuid-ossp</code> with MSVC (Hiroshi Saito)
     </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-8-3-2.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-8-3.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">E.203. Release 8.3.2 </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> E.205. Release 8.3</td></tr></table></div></body></html>