Re: Problems with disabling triggers in Postgres 7.3.9

Hi Richard,

I have that trigger running on AFTER INSERT of participation table. That
trigger inserts 3 new record for each line i inserted in participation.

I guess the problem is in these two statement:

EXECUTE ''update pg_class set reltriggers=0 where relname = '' ||
quote_literal(tablename);

EXECUTE ''update pg_class set reltriggers = count(*) from pg_trigger where
pg_class.oid=tgrelid and relname = '' || quote_literal(tablename);

These statement is a walk-around to disable and enable the trigger on a
table and i use this to avoid the trigger be called recursively.

My question is there is another to do this trigger avoiding need to
disable/enable the triggers? Or there is an way to solve this problem with
RelationBuildTriggers?

regards,
Flávio Suguimoto

-----Original Message-----
From: Richard Huxton [mailto:dev@archonet.com]
Sent: Thursday, March 09, 2006 10:56 AM
To: Flávio Suguimoto
Cc: pgsql-sql@postgresql.org
Subject: Re: [SQL] Problems with disabling triggers in Postgres 7.3.9


Flávio Suguimoto wrote:
> Hi all,
>
> I have a problem in a trigger that disable all the triggers of a table.
This
> error occurs randomly and my guess is that occurs when i have a lot of
> concurrents inserts in the table participation.
>
> The error is :  RelationBuildTriggers: 2 record(s) not found for rel
> participation

Well, at the very least you should get an exclusive write-lock on the
table "participation" before turning its triggers off.

However, I'm doubtful that you really want to do that in any case. Can I ask what problem you are trying to solve?

Oh, and upgrade to 7.3.14 too - you're missing 5 sets of bug-fixes.
--  Richard Huxton  Archonet Ltd