    </P
><P
>        This reduces the I/O required for statistics tracking.
       </P
></LI
><LI
><P
>        Fix the statistics collector to operate properly in cases where the
        system clock goes backwards (Tom Lane)
       </P
><P
>        Previously, statistics collection would stop until the time again
        reached the latest time previously recorded.
       </P
></LI
><LI
><P
>        Emit an informative message to postmaster standard error when we
        are about to stop logging there
   