Hi,
How does the IF statement evaluate conditions? Does it evaluate conditions
following their declaration order from left to right? In case of
or-conditions, does the IF statement stop evaluating conditions whenever a
first or-condition is true?
The following snippet seems to be invalid, which let me think that PL/PGSQL
evaluates all the conditions:
IF (TG_OP = 'INSERT') OR (OLD.bar = ...) THEN statement END IF;
Should be rewritten as (for example):
IF (TG_OP = 'INSERT') THEN statement ELSIF (OLD.bar = ...) THEN statement END IF;
Regards,
--
Daniel