E-NESTLOOP"
></A
><TT
CLASS="VARNAME"
>enable_nestloop</TT
> (<TT
CLASS="TYPE"
>boolean</TT
>)</DT
><DD
><P
>        Enables or disables the query planner's use of nested-loop join
        plans. It is impossible to suppress nested-loop joins 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-SEQSCAN"
></A
><TT
CLASS="VARNAME"
>ena