also, how hard would it be to implement "CREATE ASSERTION", and where do you see it (and maybe Tom could anwer that one too). Would you say, it would be possible for someone with my knowledge of postgresql internals (vague), but with very good C to do it -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general