thentication or with GSSAPI delegated credentials, so specify the
    <code class="literal">password</code> option for user mappings belonging to
    non-superusers where password authentication is required.
   </p><p>
    A superuser may override this check on a per-user-mapping basis by setting
    the user mapping option <code class="literal">password_required 'false'</code>, e.g.,
</p><pre class="programlisting">
ALTER USER MAPPING FOR some_non_superuser SERVER loopback_nopw
OPTIONS (ADD password_requir