From: Bruce Momjian <pgman@candle.pha.pa.us>
To: PostgreSQL-SQL <pgsql-sql@postgreSQL.org>
Cc: josh@agliodbs.com, Jean-Luc Lachance <jllachan@nsd.ca>
Subject: Re: Rules/Trigges Trade-offs
Date: Fri, 6 Dec 2002 22:43:02 -0500 (EST)
Message-ID: <200212070343.gB73h2H14787@candle.pha.pa.us> (raw)
In-Reply-To: <200212070224.gB72OiM06066@candle.pha.pa.us>
Bruce Momjian wrote:
> > > > 3) There are no AFTER Rules, making, for example, a rule with a table
> > check on
> > > > the new data impractical, so you'd want to use Triggers or Constraints
> > >
> > > We have changed ordering in 7.3 where I think INSERT rules are _after_
> > > the insert.
> >
> > How would that work? What if I want to reject the insert?
>
> Uh, good question. I can't remember now what we re-ordered in 7.3, but
> I thought it had to do with rules.
OK, I found what I wanted. We made rules fire in alphabetical order in
7.3, and INSTEAD rules are not reordered to the font/back --- they are
treated just like any other rule and executed alphabetically.
I thought we had some problem with rules or triggers and OLD/NEW
handling, but I can't see any mention of that, and it must have been in
an older release.
The question of firing order is a good one and one that isn't asked very
often.
--
Bruce Momjian | http://candle.pha.pa.us
pgman@candle.pha.pa.us | (610) 359-1001
+ If your life is a hard drive, | 13 Roberts Road
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To: pgsql-sql@postgresql.org
Cc: pgman@candle.pha.pa.us, jllachan@nsd.ca
Subject: Re: Rules/Trigges Trade-offs
In-Reply-To: <200212070343.gB73h2H14787@candle.pha.pa.us>
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