boolean</TT
> columns (Marti Raudsepp)
       </P
></LI
><LI
><P
>        Account for set-returning functions in <TT
CLASS="COMMAND"
>SELECT</TT
> target
        lists when setting row count estimates (Tom Lane)
       </P
></LI
><LI
><P
>        Fix planner to handle indexes with duplicated columns more reliably
        (Tom Lane)
       </P
></LI
><LI
><P
>        Collect and use element-frequency statistics for arrays (Alexander
        Korotkov, Tom Lane)
       </P
><P
>        This change improves sel