 option.  If no password is specified, the password will be set
        to null and password authentication will always fail for that
        user.  A null password can optionally be written explicitly as
        <TT
CLASS="LITERAL"
>PASSWORD NULL</TT
>.
       </P
></DD
><DT
><TT
CLASS="LITERAL"
>ENCRYPTED</TT
><BR><TT
CLASS="LITERAL"
>UNENCRYPTED</TT
></DT
><DD
><P
>        These key words control whether the password is stored
        encrypted in the system catalogs.  (If neither is specified,
        t