commit ffda90f3afe3f4db10127d2b853dfe4230720873
Author: Bruce Momjian <bruce@momjian.us>
Date:   Thu May 10 13:38:05 2012 -0400

    9.2 release note updates from Peter Geoghegan

diff --git a/doc/src/sgml/release-9.2.sgml b/doc/src/sgml/release-9.2.sgml
new file mode 100644
index 0b43c3a..ed8ce99
*** a/doc/src/sgml/release-9.2.sgml
--- b/doc/src/sgml/release-9.2.sgml
***************
*** 72,79 ****
         
         <para>
          Users should now use hstore(text, text).  Since
!         <productname>PostgreSQL</productname> 9.0, we have emitted a
!         warning message when an operator named =&gt; is created because
          the <acronym>SQL</acronym> standard reserves that token for
          another use.
         </para>
--- 72,79 ----
         
         <para>
          Users should now use hstore(text, text).  Since
!         <productname>PostgreSQL</productname> 9.0, a warning message is
!         emitted when an operator named =&gt; is created because
          the <acronym>SQL</acronym> standard reserves that token for
          another use.
         </para>
***************
*** 462,478 ****
        
        <listitem>
         <para>
-         Make the visibility map crash-safe (Robert Haas, Noah Misch)
-        </para>
-        
-        <para>
-         This helps vacuum be more efficient, and is necessary for
-         index-only scans.
-        </para>
-       </listitem>
-       
-       <listitem>
-        <para>
          Improve GiST box and point index performance by producing better
          trees with less memory allocation overhead (Alexander Korotkov,
          Heikki Linnakangas, Kevin Grittner)
--- 462,467 ----
***************
*** 545,553 ****
        
        <listitem>
         <para>
!         Improve performance of <acronym>WAL</acronym> writes when multiple
!         transactions commit at the same time (Peter Geoghegan, Simon Riggs,
!         Heikki Linnakangas)
         </para>
        </listitem>
        
--- 534,552 ----
        
        <listitem>
         <para>
!         Improve performance of <acronym>WAL</acronym> writes using group
!         commit (Peter Geoghegan, Simon Riggs, Heikki Linnakangas)
!        </para>
!       </listitem>
!       
!       <listitem>
!        <para>
!         Make the visibility map crash-safe (Robert Haas, Noah Misch)
!        </para>
!        
!        <para>
!         This helps vacuum be more efficient, and is necessary for
!         index-only scans.
         </para>
        </listitem>
        
***************
*** 608,621 ****
        <listitem>
         <para>
          Allow the <link linkend="pg-stat-bgwriter-view">bgwriter</link>,
!         <link linkend="guc-wal-writer-delay">walwriter</link>, and <link
!         linkend="monitoring-stats">statistics collector</link> to sleep
!         more efficiently during periods of inactivity (Peter Geoghegan,
!         Heikki Linnakangas, Tom Lane)
         </para>
         
         <para>
!         This reduces <acronym>CPU</acronym> wake-ups.
         </para>
        </listitem>
        
--- 607,621 ----
        <listitem>
         <para>
          Allow the <link linkend="pg-stat-bgwriter-view">bgwriter</link>,
!         <link linkend="guc-wal-writer-delay">walwriter</link>, <link
!         linkend="monitoring-stats">statistics collector</link>, archiver,
!         and checkpointer to sleep more efficiently during periods of
!         inactivity (Peter Geoghegan, Heikki Linnakangas, Tom Lane)
         </para>
         
         <para>
!         This reduces <acronym>CPU</acronym> wake-ups, which dramatically
!         reduces power consumption on idle servers.
         </para>
        </listitem>
        
***************
*** 2071,2077 ****
         </para>
         
         <para>
!         We already supported minor-version-specific <filename>.psqlrc</>
          files.
         </para>
        </listitem>
--- 2071,2078 ----
         </para>
         
         <para>
!         <application>psql</> already supported minor-version-specific
!         <filename>.psqlrc</>
          files.
         </para>
        </listitem>
***************
*** 2745,2751 ****
         
         <para>
          Specifically, only lock the old cluster if link mode is used,
!         and do it right after we restore the schema.
         </para>
        </listitem>
        
--- 2746,2752 ----
         
         <para>
          Specifically, only lock the old cluster if link mode is used,
!         and do it right after the schema is restored.
         </para>
        </listitem>