EF="runtime-config-query.html#GUC-DEFAULT-STATISTICS-TARGET"
>default_statistics_target</A
> configuration parameter,
       and increasing the amount of statistics collected for
       specific columns using <TT
CLASS="COMMAND"
>ALTER TABLE SET
       STATISTICS</TT
>.
      </P
><P
></P
><DIV
CLASS="VARIABLELIST"
><DL
><DT
><A
NAME="GUC-ENABLE-BITMAPSCAN"
></A
><TT
CLASS="VARNAME"
>enable_bitmapscan</TT
> (<TT
CLASS="TYPE"
>boolean</TT
>)</DT
><DD
><P
>        Enables or disables the query planner's use o