owever, if you are upgrading from a version earlier than 9.0.4,
    see the release notes for 9.0.4.
   </P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN121245"
>E.29.2. Changes</A
></H2
><P
></P
><UL
><LI
><P
>      Fix catalog cache invalidation after a <TT
CLASS="COMMAND"
>VACUUM FULL</TT
> or
      <TT
CLASS="COMMAND"
>CLUSTER</TT
> 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 concu