> I really think we should have a way of telling if a array/row/record > variable is actually set to something, and I'm pretty sure that should be > unrelated to whether all the elements in it happen to be null.
+1. Also, can whatever syntax we introduce by something relatively concise? Code that looks nice when you write "=" does not look as nice when you write "IS NOT DISTINCT FROM". I'm almost inclined to suggest using functional notation rather than dreaming up a new "IS WHATEVER" syntax. > And the IS > NOT NULL case seems exceptionally broken. I think it's extremely confusing > to have it behave differently than NOT blah IS NULL. -1. This is obviously a trap for the unwary but I think we're stuck with it. ...Robert -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
