Re: Updatable view and default sequence values

On Tue, May 16, 2006 at 04:16:55PM +0300, Kouber Saparev wrote:
> The tricky part comes when I try to make my view insertable. Normally
> I'd insert without specifying the sequence values, but in some cases I'd
> want also to have full control of what's going into the underlying
> tables. The thing is that when I try to do it the simple way by
> specifying default values in the view itself:
>
> ALTER TABLE s_purchase ALTER COLUMN purchase_sid SET DEFAULT
> NEXTVAL('purchase_purchase_sid_seq');
> ALTER TABLE s_purchase ALTER COLUMN subscription_purchase_sid SET
> DEFAULT NEXTVAL('subscription_purchase_subscription_purchase_sid_seq');

You're doing ALTER TABLE on a view?

> CREATE RULE s_purchase_insert AS
> ON INSERT TO s_purchase DO INSTEAD (
> INSERT INTO purchase
> (purchase_sid, data)
> VALUES
> (NEW.purchase_sid, NEW.pdata);
>
> INSERT INTO subscription_purchase
> (subscription_purchase_sid, purchase_sid, data)
> VALUES
> (NEW.subscription_purchase_sid, NEW.purchase_sid, NEW.sdata);
> );

Why not just use CURRVAL('purchase_purchase_sid_seq') in the rule?
--
Jim C. Nasby, Sr. Engineering Consultant jnasby(at)pervasive(dot)com
Pervasive Software http://pervasive.com work: 512-231-6117
vcard: http://jim.nasby.net/pervasive.vcf cell: 512-569-9461