sibility after it has removed expired tuples
        (Pavan Deolasee)
       </P
><P
>        This increases the chance of a page being marked as all-visible.
       </P
></LI
><LI
><P
>        Add per-resource-owner lock caches (Jeff Janes)
       </P
><P
>        This speeds up lock bookkeeping at statement completion in
        multi-statement transactions that hold many locks; it is particularly
        useful for <SPAN
CLASS="APPLICATION"
>pg_dump</SPAN
>.
       </P
></LI
><LI
><P
>        Avoid scann