Index: doc/src/sgml/config.sgml
===================================================================
RCS file: /cvsroot/pgsql/doc/src/sgml/config.sgml,v
retrieving revision 1.304
diff -c -c -r1.304 config.sgml
*** doc/src/sgml/config.sgml	17 Aug 2010 04:37:20 -0000	1.304
--- doc/src/sgml/config.sgml	22 Aug 2010 02:30:39 -0000
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*** 4150,4156 ****
         <para>
          Specifies the maximum age (in transactions) that a table's
          <structname>pg_class</>.<structfield>relfrozenxid</> field can
!         attain before a <command>VACUUM</> operation is forced to prevent
          transaction ID wraparound within the table.  Note that the system
          will launch autovacuum processes to prevent wraparound even when
          autovacuum is otherwise disabled.
--- 4150,4157 ----
         <para>
          Specifies the maximum age (in transactions) that a table's
          <structname>pg_class</>.<structfield>relfrozenxid</> field can
!         attain before a <command>VACUUM</> operation is forced to allow removal
!         of old files from the <filename>pg_clog</> subdirectory and prevent
          transaction ID wraparound within the table.  Note that the system
          will launch autovacuum processes to prevent wraparound even when
          autovacuum is otherwise disabled.