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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.153. Release 9.0.5</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-9-0-6.html" title="E.152. Release 9.0.6" /><link rel="next" href="release-9-0-4.html" title="E.154. Release 9.0.4" /></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.153. Release 9.0.5</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="release-9-0-6.html" title="E.152. Release 9.0.6">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-9-0-4.html" title="E.154. Release 9.0.4">Next</a></td></tr></table><hr></hr></div><div class="sect1" id="RELEASE-9-0-5"><div class="titlepage"><div><div><h2 class="title" style="clear: both">E.153. Release 9.0.5</h2></div></div></div><div class="toc"><dl class="toc"><dt><span class="sect2"><a href="release-9-0-5.html#id-1.11.6.157.4">E.153.1. Migration to Version 9.0.5</a></span></dt><dt><span class="sect2"><a href="release-9-0-5.html#id-1.11.6.157.5">E.153.2. Changes</a></span></dt></dl></div><p><strong>Release date: </strong>2011-09-26</p><p>
   This release contains a variety of fixes from 9.0.4.
   For information about new features in the 9.0 major release, see
   <a class="xref" href="release-9-0.html" title="E.158. Release 9.0">Section E.158</a>.
  </p><div class="sect2" id="id-1.11.6.157.4"><div class="titlepage"><div><div><h3 class="title">E.153.1. Migration to Version 9.0.5</h3></div></div></div><p>
    A dump/restore is not required for those running 9.0.X.
   </p><p>
    However, if you are upgrading from a version earlier than 9.0.4,
    see <a class="xref" href="release-9-0-4.html" title="E.154. Release 9.0.4">Section E.154</a>.
   </p></div><div class="sect2" id="id-1.11.6.157.5"><div class="titlepage"><div><div><h3 class="title">E.153.2. Changes</h3></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>
      Fix catalog cache invalidation after a <code class="command">VACUUM FULL</code> or
      <code class="command">CLUSTER</code> on a system catalog (Tom Lane)
     </p><p>
      In some cases the relocation of a system catalog row to another place
      would not be recognized by concurrent server processes, allowing catalog
      corruption to occur if they then tried to update that row.  The
      worst-case outcome could be as bad as complete loss of a table.
     </p></li><li class="listitem"><p>
      Fix incorrect order of operations during sinval reset processing,
      and ensure that TOAST OIDs are preserved in system catalogs (Tom
      Lane)
     </p><p>
      These mistakes could lead to transient failures after a <code class="command">VACUUM
      FULL</code> or <code class="command">CLUSTER</code> on a system catalog.
     </p></li><li class="listitem"><p>
      Fix bugs in indexing of in-doubt HOT-updated tuples (Tom Lane)
     </p><p>
      These bugs could result in index corruption after reindexing a system
      catalog.  They are not believed to affect user indexes.
     </p></li><li class="listitem"><p>
      Fix multiple bugs in GiST index page split processing (Heikki
      Linnakangas)
     </p><p>
      The probability of occurrence was low, but these could lead to index
      corruption.
     </p></li><li class="listitem"><p>
      Fix possible buffer overrun in <code class="function">tsvector_concat()</code>
      (Tom Lane)
     </p><p>
      The function could underestimate the amount of memory needed for its
      result, leading to server crashes.
     </p></li><li class="listitem"><p>
      Fix crash in <code class="function">xml_recv</code> when processing a
      <span class="quote">“<span class="quote">standalone</span>”</span> parameter (Tom Lane)
     </p></li><li class="listitem"><p>
      Make <code class="function">pg_options_to_table</code> return NULL for an option with no
      value (Tom Lane)
     </p><p>
      Previously such cases would result in a server crash.
     </p></li><li class="listitem"><p>
      Avoid possibly accessing off the end of memory in <code class="command">ANALYZE</code>
      and in SJIS-2004 encoding conversion (Noah Misch)
     </p><p>
      This fixes some very-low-probability server crash scenarios.
     </p></li><li class="listitem"><p>
      Protect <code class="function">pg_stat_reset_shared()</code> against NULL input (Magnus
      Hagander)
     </p></li><li class="listitem"><p>
      Fix possible failure when a recovery conflict deadlock is detected
      within a sub-transaction (Tom Lane)
     </p></li><li class="listitem"><p>
      Avoid spurious conflicts while recycling btree index pages during hot
      standby (Noah Misch, Simon Riggs)
     </p></li><li class="listitem"><p>
      Shut down WAL receiver if it's still running at end of recovery (Heikki
      Linnakangas)
     </p><p>
      The postmaster formerly panicked in this situation, but it's actually a
      legitimate case.
     </p></li><li class="listitem"><p>
      Fix race condition in relcache init file invalidation (Tom Lane)
     </p><p>
      There was a window wherein a new backend process could read a stale init
      file but miss the inval messages that would tell it the data is stale.
      The result would be bizarre failures in catalog accesses, typically
      <span class="quote">“<span class="quote">could not read block 0 in file ...</span>”</span> later during startup.
     </p></li><li class="listitem"><p>
      Fix memory leak at end of a GiST index scan (Tom Lane)
     </p><p>
      Commands that perform many separate GiST index scans, such as
      verification of a new GiST-based exclusion constraint on a table
      already containing many rows, could transiently require large amounts of
      memory due to this leak.
     </p></li><li class="listitem"><p>
      Fix memory leak when encoding conversion has to be done on incoming
      command strings and <code class="command">LISTEN</code> is active (Tom Lane)
     </p></li><li class="listitem"><p>
      Fix incorrect memory accounting (leading to possible memory bloat) in
      tuplestores supporting holdable cursors and plpgsql's <code class="literal">RETURN
      NEXT</code> command (Tom Lane)
     </p></li><li class="listitem"><p>
      Fix trigger <code class="literal">WHEN</code> conditions when both <code class="literal">BEFORE</code> and
      <code class="literal">AFTER</code> triggers exist (Tom Lane)
     </p><p>
      Evaluation of <code class="literal">WHEN</code> conditions for <code class="literal">AFTER ROW
      UPDATE</code> triggers could crash if there had been a <code class="literal">BEFORE
      ROW</code> trigger fired for the same update.
     </p></li><li class="listitem"><p>
      Fix performance problem when constructing a large, lossy bitmap
      (Tom Lane)
     </p></li><li class="listitem"><p>
      Fix join selectivity estimation for unique columns (Tom Lane)
     </p><p>
      This fixes an erroneous planner heuristic that could lead to poor
      estimates of the result size of a join.
     </p></li><li class="listitem"><p>
      Fix nested PlaceHolderVar expressions that appear only in sub-select
      target lists (Tom Lane)
     </p><p>
      This mistake could result in outputs of an outer join incorrectly
      appearing as NULL.
     </p></li><li class="listitem"><p>
      Allow the planner to assume that empty parent tables really are empty
      (Tom Lane)
     </p><p>
      Normally an empty table is assumed to have a certain minimum size for
      planning purposes; but this heuristic seems to do more harm than good
      for the parent table of an inheritance hierarchy, which often is
      permanently empty.
     </p></li><li class="listitem"><p>
      Allow nested <code class="literal">EXISTS</code> queries to be optimized properly (Tom
      Lane)
     </p></li><li class="listitem"><p>
      Fix array- and path-creating functions to ensure padding bytes are
      zeroes (Tom Lane)
     </p><p>
      This avoids some situations where the planner will think that
      semantically-equal constants are not equal, resulting in poor
      optimization.
     </p></li><li class="listitem"><p>
      Fix <code class="command">EXPLAIN</code> to handle gating Result nodes within
      inner-indexscan subplans (Tom Lane)
     </p><p>
      The usual symptom of this oversight was <span class="quote">“<span class="quote">bogus varno</span>”</span> errors.
     </p></li><li class="listitem"><p>
      Fix btree preprocessing of <em class="replaceable"><code>indexedcol</code></em> <code class="literal">IS
      NULL</code> conditions (Dean Rasheed)
     </p><p>
      Such a condition is unsatisfiable if combined with any other type of
      btree-indexable condition on the same index column.  The case was
      handled incorrectly in 9.0.0 and later, leading to query output where
      there should be none.
     </p></li><li class="listitem"><p>
      Work around gcc 4.6.0 bug that breaks WAL replay (Tom Lane)
     </p><p>
      This could lead to loss of committed transactions after a server crash.
     </p></li><li class="listitem"><p>
      Fix dump bug for <code class="literal">VALUES</code> in a view (Tom Lane)
     </p></li><li class="listitem"><p>
      Disallow <code class="literal">SELECT FOR UPDATE/SHARE</code> on sequences (Tom Lane)
     </p><p>
      This operation doesn't work as expected and can lead to failures.
     </p></li><li class="listitem"><p>
      Fix <code class="command">VACUUM</code> so that it always updates
      <code class="literal">pg_class</code>.<code class="literal">reltuples</code>/<code class="literal">relpages</code> (Tom
      Lane)
     </p><p>
      This fixes some scenarios where autovacuum could make increasingly poor
      decisions about when to vacuum tables.
     </p></li><li class="listitem"><p>
      Defend against integer overflow when computing size of a hash table (Tom
      Lane)
     </p></li><li class="listitem"><p>
      Fix cases where <code class="command">CLUSTER</code> might attempt to access
      already-removed TOAST data (Tom Lane)
     </p></li><li class="listitem"><p>
      Fix premature timeout failures during initial authentication transaction
      (Tom Lane)
     </p></li><li class="listitem"><p>
      Fix portability bugs in use of credentials control messages for
      <span class="quote">“<span class="quote">peer</span>”</span> authentication (Tom Lane)
     </p></li><li class="listitem"><p>
      Fix SSPI login when multiple roundtrips are required (Ahmed Shinwari,
      Magnus Hagander)
     </p><p>
      The typical symptom of this problem was <span class="quote">“<span class="quote">The function requested is
      not supported</span>”</span> errors during SSPI login.
     </p></li><li class="listitem"><p>
      Fix failure when adding a new variable of a custom variable class to
      <code class="filename">postgresql.conf</code> (Tom Lane)
     </p></li><li class="listitem"><p>
      Throw an error if <code class="filename">pg_hba.conf</code> contains <code class="literal">hostssl</code>
      but SSL is disabled (Tom Lane)
     </p><p>
      This was concluded to be more user-friendly than the previous behavior
      of silently ignoring such lines.
     </p></li><li class="listitem"><p>
      Fix failure when <code class="command">DROP OWNED BY</code> attempts to remove default
      privileges on sequences (Shigeru Hanada)
     </p></li><li class="listitem"><p>
      Fix typo in <code class="function">pg_srand48</code> seed initialization (Andres Freund)
     </p><p>
      This led to failure to use all bits of the provided seed.  This function
      is not used on most platforms (only those without <code class="function">srandom</code>),
      and the potential security exposure from a less-random-than-expected
      seed seems minimal in any case.
     </p></li><li class="listitem"><p>
      Avoid integer overflow when the sum of <code class="literal">LIMIT</code> and
      <code class="literal">OFFSET</code> values exceeds 2^63 (Heikki Linnakangas)
     </p></li><li class="listitem"><p>
      Add overflow checks to <code class="type">int4</code> and <code class="type">int8</code> versions of
      <code class="function">generate_series()</code> (Robert Haas)
     </p></li><li class="listitem"><p>
      Fix trailing-zero removal in <code class="function">to_char()</code> (Marti Raudsepp)
     </p><p>
      In a format with <code class="literal">FM</code> and no digit positions
      after the decimal point, zeroes to the left of the decimal point could
      be removed incorrectly.
     </p></li><li class="listitem"><p>
      Fix <code class="function">pg_size_pretty()</code> to avoid overflow for inputs close to
      2^63 (Tom Lane)
     </p></li><li class="listitem"><p>
      Weaken plpgsql's check for typmod matching in record values (Tom Lane)
     </p><p>
      An overly enthusiastic check could lead to discarding length modifiers
      that should have been kept.
     </p></li><li class="listitem"><p>
      Correctly handle quotes in locale names during <span class="application">initdb</span>
      (Heikki Linnakangas)
     </p><p>
      The case can arise with some Windows locales, such as <span class="quote">“<span class="quote">People's
      Republic of China</span>”</span>.
     </p></li><li class="listitem"><p>
      In <span class="application">pg_upgrade</span>, avoid dumping orphaned temporary tables
      (Bruce Momjian)
     </p><p>
      This prevents situations wherein table OID assignments could get out of
      sync between old and new installations.
     </p></li><li class="listitem"><p>
      Fix <span class="application">pg_upgrade</span> to preserve toast tables' relfrozenxids
      during an upgrade from 8.3 (Bruce Momjian)
     </p><p>
      Failure to do this could lead to <code class="filename">pg_clog</code> files being
      removed too soon after the upgrade.
     </p></li><li class="listitem"><p>
      In <span class="application">pg_upgrade</span>, fix the <code class="literal">-l</code> (log) option to
      work on Windows (Bruce Momjian)
     </p></li><li class="listitem"><p>
      In <span class="application">pg_ctl</span>, support silent mode for service registrations
      on Windows (MauMau)
     </p></li><li class="listitem"><p>
      Fix <span class="application">psql</span>'s counting of script file line numbers during
      <code class="literal">COPY</code> from a different file (Tom Lane)
     </p></li><li class="listitem"><p>
      Fix <span class="application">pg_restore</span>'s direct-to-database mode for
      <code class="varname">standard_conforming_strings</code> (Tom Lane)
     </p><p>
      <span class="application">pg_restore</span> could emit incorrect commands when restoring
      directly to a database server from an archive file that had been made
      with <code class="varname">standard_conforming_strings</code> set to <code class="literal">on</code>.
     </p></li><li class="listitem"><p>
      Be more user-friendly about unsupported cases for parallel
      <span class="application">pg_restore</span> (Tom Lane)
     </p><p>
      This change ensures that such cases are detected and reported before
      any restore actions have been taken.
     </p></li><li class="listitem"><p>
      Fix write-past-buffer-end and memory leak in <span class="application">libpq</span>'s
      LDAP service lookup code (Albe Laurenz)
     </p></li><li class="listitem"><p>
      In <span class="application">libpq</span>, avoid failures when using nonblocking I/O
      and an SSL connection (Martin Pihlak, Tom Lane)
     </p></li><li class="listitem"><p>
      Improve libpq's handling of failures during connection startup
      (Tom Lane)
     </p><p>
      In particular, the response to a server report of <code class="function">fork()</code>
      failure during SSL connection startup is now saner.
     </p></li><li class="listitem"><p>
      Improve <span class="application">libpq</span>'s error reporting for SSL failures (Tom
      Lane)
     </p></li><li class="listitem"><p>
      Fix <code class="function">PQsetvalue()</code> to avoid possible crash when adding a new
      tuple to a <code class="structname">PGresult</code> originally obtained from a server
      query (Andrew Chernow)
     </p></li><li class="listitem"><p>
      Make <span class="application">ecpglib</span> write <code class="type">double</code> values with 15 digits
      precision (Akira Kurosawa)
     </p></li><li class="listitem"><p>
      In <span class="application">ecpglib</span>, be sure <code class="literal">LC_NUMERIC</code> setting is
      restored after an error (Michael Meskes)
     </p></li><li class="listitem"><p>
      Apply upstream fix for blowfish signed-character bug (CVE-2011-2483)
      (Tom Lane)
     </p><p>
      <code class="filename">contrib/pg_crypto</code>'s blowfish encryption code could give
      wrong results on platforms where char is signed (which is most),
      leading to encrypted passwords being weaker than they should be.
     </p></li><li class="listitem"><p>
      Fix memory leak in <code class="filename">contrib/seg</code> (Heikki Linnakangas)
     </p></li><li class="listitem"><p>
      Fix <code class="function">pgstatindex()</code> to give consistent results for empty
      indexes (Tom Lane)
     </p></li><li class="listitem"><p>
      Allow building with perl 5.14 (Alex Hunsaker)
     </p></li><li class="listitem"><p>
      Fix assorted issues with build and install file paths containing spaces
      (Tom Lane)
     </p></li><li class="listitem"><p>
      Update time zone data files to <span class="application">tzdata</span> release 2011i
      for DST law changes in Canada, Egypt, Russia, Samoa, and South Sudan.
     </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-9-0-6.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-9-0-4.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">E.152. Release 9.0.6 </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> E.154. Release 9.0.4</td></tr></table></div></body></html>