SS="LITERAL"
>use_variable</TT
>, or
    <TT
CLASS="LITERAL"
>use_column</TT
> (where <TT
CLASS="LITERAL"
>error</TT
> is the factory default).
    This parameter affects subsequent compilations
    of statements in <SPAN
CLASS="APPLICATION"
>PL/pgSQL</SPAN
> functions, but not statements
    already compiled in the current session.
    Because changing this setting
    can cause unexpected changes in the behavior of <SPAN
CLASS="APPLICATION"
>PL/pgSQL</SPAN
>
    functions, it can only be changed by a supe