ed by
        <SPAN
CLASS="APPLICATION"
>pgbench</SPAN
>, for use in foreign key performance testing.
       </P
></LI
><LI
><P
>        Allow <SPAN
CLASS="APPLICATION"
>pgbench</SPAN
> to aggregate performance statistics
        and produce output every <TT
CLASS="OPTION"
>--aggregate-interval</TT
>
        seconds (Tomas Vondra)
       </P
></LI
><LI
><P
>        Add <SPAN
CLASS="APPLICATION"
>pgbench</SPAN
> <TT
CLASS="OPTION"
>--sampling-rate</TT
> option
        to control the percentage of transaction