Am Donnerstag, 30. Juni 2005 00:55 schrieb Tom Lane:
> It's not that hard to make your own type using the builtin textin and
> textout functions, and then add just the functions you wish to provide.
Implementing the "distinct type" feature of SQL would probably amount to
something like that. Might be worth looking into.
--
Peter Eisentraut
http://developer.postgresql.org/~petere/