>> >> Postfix expects an empty set (i.e. no rows returned) if it is to
>> >> respond >> >> negatively that a virtual alias does not exist. >> >> Returning NULL does not equal no rows returned. >> >> >Are you sure?? >> >> 100% confirmed. To return NOTFOUND, you MUST return NO RESULT. > > The common code that underlies the MySQL, PgSQL and LDAP table > drivers ignores empty result values with a warning. While NULL > result values are silently ignored you should not depend on this > undocumented behaviour. Ah, OK, that explains it. Thanks.
