his helps avoid unintended client connections during the upgrade.
       </P
></LI
><LI
><P
>        Reduce cluster locking in <SPAN
CLASS="APPLICATION"
>pg_upgrade</SPAN
> (Bruce
        Momjian)
       </P
><P
>        Specifically, only lock the old cluster if link mode is used,
        and do it right after the schema is restored.
       </P
></LI
></UL
></DIV
><DIV
CLASS="SECT4"
><H4
CLASS="SECT4"
><A
NAME="AEN117226"
>E.8.3.13.2. <A
HREF="pgstatstatements.html"
><SPAN
CLASS="APPLICATION"
>pg_stat_stat