> So for most applications written against this database, they're probably > assuming only one email address in this column. > > And then you confuse the issue by putting two or more comma-separated > addresses, which are not universally usable when a single address > is provided. Surely not Randal. Client application developers can simply read the regex in the check constraint to see its behaviour :-) Regards, Peter Geoghegan -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general