TT
>)</DT
><DD
><P
>        Enables or disables the query planner's use of explicit sort
        steps. It is impossible to suppress explicit sorts entirely,
        but turning this variable off discourages the planner from
        using one if there are other methods available. The default
        is <TT
CLASS="LITERAL"
>on</TT
>.
       </P
></DD
><DT
><A
NAME="GUC-ENABLE-TIDSCAN"
></A
><TT
CLASS="VARNAME"
>enable_tidscan</TT
> (<TT
CLASS="TYPE"
>boolean</TT
>)</DT
><DD
><P
>        Enables or disables t