On Fri, Dec 16, 2016 at 12:28 PM, Pavel Stehule <pavel.steh...@gmail.com> wrote: > why do you need special operator for negation? there is only one use case. > It can be solved by \if_not
That's exactly the kind of thing I *don't* want to do. If you absolutely must have that and you can't wait until we get a full-blown expression evaluator, then just swap the \if side with the \else side and call it good. The whole point here is to avoid introducing weird hacks for lack of a full expression evaluator that will just become annoyances once we have one. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers