On Tue, 28 Jan 2003, Bruno Wolff III wrote: > On Mon, Jan 27, 2003 at 21:23:01 -0800, > Stephan Szabo <[EMAIL PROTECTED]> wrote: > > > > On Tue, 28 Jan 2003, Christopher Kings-Lynne wrote: > > > > > I just noticed you can do this: > > > > > > create table blah ( > > > a not null references test on delete set null > > > ) > > > > > > Should that be prevented? It shouldn't be too hard to test for really... > > > > Maybe, although I don't think the spec prevents it. In practice > > I'd guess it ends up being a more expensive way of saying no action. > > No. You end up not being able to delete the referenced keys. I tested > this in 7.3 and you get the following message when you try it: > ERROR: ExecUpdate: Fail to add null value in not null attribute col1
Right, and NO ACTION shouldn't allow you delete the referenced keys either except that it gives you a meaningful error message as well. :) I think you may have been confusing NO ACTION and CASCADE. ---------------------------(end of broadcast)--------------------------- TIP 3: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to [EMAIL PROTECTED] so that your message can get through to the mailing list cleanly
