Index: doc/src/sgml/maintenance.sgml
===================================================================
RCS file: /cvsroot/pgsql/doc/src/sgml/maintenance.sgml,v
retrieving revision 1.51
diff -c -c -r1.51 maintenance.sgml
*** doc/src/sgml/maintenance.sgml	4 Nov 2005 23:14:00 -0000	1.51
--- doc/src/sgml/maintenance.sgml	7 Dec 2005 05:35:08 -0000
***************
*** 141,151 ****
      command. The first form, known as <quote>lazy vacuum</quote> or
      just <command>VACUUM</command>, marks expired data in tables and
      indexes for future reuse; it does <emphasis>not</emphasis> attempt
!     to reclaim the space used by this expired data
!     immediately. Therefore, the table file is not shortened, and any
!     unused space in the file is not returned to the operating
!     system. This variant of <command>VACUUM</command> can be run
!     concurrently with normal database operations.
     </para>
  
     <para>
--- 141,152 ----
      command. The first form, known as <quote>lazy vacuum</quote> or
      just <command>VACUUM</command>, marks expired data in tables and
      indexes for future reuse; it does <emphasis>not</emphasis> attempt
!     to reclaim the space used by this expired data unless the space is
!     at the end of the table and an exclusive lock can be obtained easily
!     on the table. Unused space at the start or middle of the file does
!     not result in the file being shortened and space returned to the
!     operating system. This variant of <command>VACUUM</command> can be
!     run concurrently with normal database operations.
     </para>
  
     <para>