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*************** VACUUM [ FULL ] [ FREEZE ] [ VERBOSE ] A
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     </para>
  
     <para>
+     For tables with <acronym>GIN</> indexes, <command>VACUUM</command> (in
+     any form) also completes any pending index insertions, by moving pending
+     index entries to the appropriate places in the main <acronym>GIN</> index
+     structure.  See <xref linkend="gin-fast-update"> for details.
+    </para>
+ 
+    <para>
      We recommend that active production databases be
      vacuumed frequently (at least nightly), in order to
      remove dead rows. After adding or deleting a large number