Scott Ribe <[EMAIL PROTECTED]> writes: > Well, actually, it would be: > a = b or (a = b) is unknown > But that certainly would more concise.
But regression=# select (null = null) is unknown; ?column? ---------- t (1 row) which I think is not what you wanted. regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 5: don't forget to increase your free space map settings