Date: Mon, 11 Apr 2005 16:29:51 -0400
From: Carlos Moreno <moreno@mochima.com>
Subject: Update aborted if trigger function fails?
To: pgsql-sql@postgresql.org
Message-id: <425ADE3F.1090206@mochima.com>
MIME-version: 1.0
Content-type: text/plain; charset=us-ascii; format=flowed
Content-transfer-encoding: 7BIT
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7)
	Gecko/20040616


Hi,

I just noticed this (odd?) behaviour, and it kind of
scares me.

For testing purposes, I put a deliberate syntax error;
this wouldn't happen in a real-life situation.  But what
if the error gets triggered by something that happens
later on?  say, if the trigger function uses a field
that later on gets dropped from the table -- something
that was working fine all of a sudden produces syntax
errors while executing the function

(I just verified, to see if the server would let me
drop a column that is being referenced by a function
invoked by an active trigger, and it did let me drop
it).

Isn't this a little fragile?  Is there something I
could do to avoid this situation?  Should trigger
functions be extremely simple as to guarantee that
an error would never happen?

Thanks,

Carlos
--