Re: Attempting to disable count triggers on cleanup - Mailing list pgsql-performance

On Tue, Sep 25, 2007 at 07:08:42AM -0400, Dave Cramer wrote:
> ERROR:  deadlock detected
> DETAIL:  Process 23063 waits for ExclusiveLock on tuple (20502,48) of
> relation 48999028 of database 14510214; blocked by process 23110.
> Process 23110 waits for ShareLock on transaction 1427023217; blocked by
> process 23098.
> ...
> CONTEXT:  SQL statement "update user_profile_count set
> buddycount=buddycount-1 where user_profile_count.uid= $1 "
> PL/pgSQL function "user_buddy_count" line 11 at SQL statement
> SQL statement "DELETE FROM ONLY "public"."user_buddies" WHERE
> "buddyuserid" = $1"

take a look at:
http://www.depesz.com/index.php/2007/09/12/objects-in-categories-counters-with-triggers/

and if you want to temporarily disable trigger, simply do appropriate
"alter table disable trigger".

depesz

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