Re: ON DELETE trigger blocks delete from my table

From: Jan Wieck <JanWieck(at)Yahoo(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Naeem Bari <naeem(dot)bari(at)agilissystems(dot)com>, pgsql-general(at)postgresql(dot)org
Subject: Re: ON DELETE trigger blocks delete from my table
Date: 2004-10-25 20:16:26
Message-ID: 417D5F1A.8000307@Yahoo.com
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On 10/25/2004 3:47 PM, Tom Lane wrote:

> "Naeem Bari" <naeem(dot)bari(at)agilissystems(dot)com> writes:
>> CREATE OR REPLACE FUNCTION public.func_job_status_upd()
>> RETURNS trigger AS
>> '
>> begin
>> insert into x_job_status values ( OLD.job_id, OLD.job_status_type_id,
>> OLD.status_date, OLD.notes, OLD.edit_person_id, OLD.edit_date);
>> return new;
>> end;
>> '
>> LANGUAGE 'plpgsql' VOLATILE;
>
> If this is a BEFORE trigger, you probably need "RETURN OLD". "NEW" will
> be NULL in a delete trigger, so you're returning NULL which cancels the
> operation.

... which would then again not work for the UPDATE case (not with the
same internal consequences though).

Jan

>
> regards, tom lane
>
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