I have the following code in one of my trigger functions
---------------------------------------------------------------
IF old.series_id<>new.series_id THEN
...
...
END IF;
---------------------------------------------------------------
The problem is that series_id can change to be NULL in which case I
have problems as "NULL <> 7" doesn't return "true".
What can I do to check inequality even in the case that old or new
series_id is NULL? I'd prefer not to do zillion silly comparisons
(like "IS NULL and IS NOT NULL"). Is there an easy way?
--
ICQ: 1912453
AIM: VitalyB1984
MSN: [EMAIL PROTECTED]
Yahoo!: VitalyBe
---------------------------(end of broadcast)---------------------------
TIP 6: Have you searched our list archives?
http://archives.postgresql.org
