Re: ON DELETE trigger blocks delete from my table

On 10/25/2004 2:56 PM, Naeem Bari wrote:

> Hi,
>
> I am using postgres 7.4.5 on Redhat Enterprise Linux 3.
>
> My background is really on Oracle, and I am porting a largish database
> over to postgres.
>
> Here is my problem:
>
> On oracle, I had a table with an "on update or delete" trigger that
> copied the current row out to an audit table. Works like a champ. On
> postgres, when I try to delete a row, all it gives back to me is "DELETE
> 0" and does nothing.
>
> Here is the text of the trigger:
>
> ~~~~~~~~~~
> 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;

There is no NEW row on DELETE. You can either let the trigger fire
AFTER, causing its return value to be ignored, or define different
trigger procedures for UPDATE/DELETE, or you can check inside the
trigger for which event it was actually fired and return NEW/OLD
accordingly.

Jan

> end;
> '
> LANGUAGE 'plpgsql' VOLATILE;
> ~~~~~~~~~~
>
> Any help would be appreciated!
>
> Thanks,
> naeem
>

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