Ludwig,
> What is the difference between the first and second
> chunk PL/PgSQL INSERT/UPDATE trigger function code
> aside from the fact that first scenario will result in
> an "ABORT" state?
>
> Are there any instances where a NOTICE and a RETURN
> NULL statement is a much better than a RAISE EXCEPTION
> statement?
Not that I have encountered, but YMMV.
--
-Josh Berkus
Aglio Database Solutions
San Francisco