On Sat, Feb 11, 2006 at 12:56:36PM -0800, David Fetter wrote: > I'm trying to figure out how to enforce the following. Table foo has > a primary key. Table bar has a foreign key to foo. So far so good. > I'd also like to say, "for each row in foo, there must be at least one > row in bar." Possibly something involving CREATE CONSTRAINT TRIGGER, specifying DEFERRABLE INITIALLY DEFERRED? The documentation says it's not for general use; I've used it only in simple experiments so I'm not sure how problematic it could be. Anybody? -- Michael Fuhr
