Hi
Is there a way to test for a variable being unassigned in pl/pgsql ?
I'm writing an audit trigger where I'd like to save full before and
after images into audit log and I really do not like to do
IF TG_OP IN ('INSERT', 'UPDATE') ...
I'd like rather better if i could just write
IF NEW IS ASSIGNED THEN ...
or even use it straight
null_if_unnasigned(NEW)
overriding
coalesce(NEW, NULL)
for the same purpose would also be ok
---------------------
Hannu
