TT
>
     (hours), and <TT
CLASS="LITERAL"
>d</TT
> (days).  Note that the multiplier
     for memory units is 1024, not 1000.
    </P
><P
>     Parameters of type <SPAN
CLASS="QUOTE"
>"enum"</SPAN
> are specified in the same way as string
     parameters, but are restricted to a limited set of values.  The allowed
     values can be found
     from <TT
CLASS="STRUCTNAME"
>pg_settings</TT
>.<TT
CLASS="STRUCTFIELD"
>enumvals</TT
>.
     Enum parameter values are case-insensitive.
    </P
></DIV
><DIV
CLASS="