Re: Referential Integrity Question (Delete/Insert during Transaction)

On Mon, 18 Jun 2001, Stef Telford wrote:
>
> I seem to have hit what i -think- may be a bug (but i am not crying
> wolf jst yet ;).
>
> I have three tables. action, client and order_details. action has a primary
> key 'order', client references action (along with adding the client_id as
> part of its primary key), order_details references client (both parts of the
> primary key there). all foreign keys (order in client and order+client_id in
> order_details) are set to INITIALLY DEFERRED. so far so good i hope.
>
> Now. the way i understand it, shouldnt the integrity of any foreign keys
> be checked at the -end- of the transaction, after all the commands have been
> processed ? it seems that the DELETE is being processed and rejected, but
> the foreign key would be 'okay' due to the following INSERT. I have tried
> SET CONSTRAINTS as well with no difference :\

Yes. There's a problem where intermediate conditions are being checked in
certain sequences of deferred constraints. It should be fixed for 7.2.