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From: Paul M. Aoki <aoki@CS.Berkeley.EDU>
To: David Alan Nelson <D.A.Nelson@newcastle.ac.uk>
Cc: Postgres <postgres@postgres.Berkeley.EDU>
Subject: Re: Triggers
Date: Thu, 04 Aug 94 12:20:25 -0700
Message-ID: <199408041920.MAA04662@nobozo.CS.Berkeley.EDU> (raw)
In-Reply-To: <AA13167.9408041547@swinhoe.ncl.ac.uk>

"David Alan Nelson" <D.A.Nelson@newcastle.ac.uk> writes:
> How do I support alerters and triggers in Postgres 4.1.  I thought it
> was just a case of adding the always keyword to a retrieve or replace
> command

don't believe any syntax or examples you see in the academic papers.
syntax tended to change with the phase of the moon.

depending on what you're trying to do, instance/rewrite rules may 
do some of what you want.  see "define rule".  for alerters, see
"listen"/"notify" and "libpq" (under asynchronous portal).
--
  Paul M. Aoki          |  University of California at Berkeley
  aoki@CS.Berkeley.EDU  |  Dept. of EECS, Computer Science Division (#1776) 
                        |  Berkeley, CA 94720-1776

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  Subject: Re: Triggers
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