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Re: Postgres Triggers issue

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A. Kretschmer <andreas.kretschmer@xxxxxxxxxxxxxx> wrote:

> In response to Igor Neyman :
> > > 
> > > CREATE TRIGGER tafter
> > > AFTER INSERT OR UPDATE
> > > ON r.m_a
> > > FOR EACH ROW
> > > EXECUTE PROCEDURE r.m_t();
> > > 
> > > 
> > 
> > Trigger function for an insert/update trigger should return "NEW", not
> > NULL (OLD - for "on delete" trigger):
> 
> It's an AFTER TRIGGER, so the RETURN-Value ignored.

According the doc:

The return value of a BEFORE or AFTER statement-level trigger or an
AFTER row-level trigger is always ignored; it might as well be null.

http://www.postgresql.org/docs/current/static/plpgsql-trigger.html


Andreas
-- 
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unintentional side effect.                              (Linus Torvalds)
"If I was god, I would recompile penguin with --enable-fly."   (unknown)
Kaufbach, Saxony, Germany, Europe.              N 51.05082°, E 13.56889°

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