Re: help with add constraint syntax needed - Mailing list pgsql-hackers

On Wed, 20 Jun 2001, Mike Haberman wrote:

> hello all,
> 
> I am using an xml -> sql generator where foreign key are specified
> after the columns are. The sql is written as the xml file is being
> parsed so, the foreign key stuff must be written after the fact.
> 
> The problem I need to solve is adding the on Delete/on Update constraints.
> 
> here's what I would like to do (e.g.):
> 
> ALTER TABLE league
>     ADD CONSTRAINT leagueOwnerId FOREIGN KEY (leagueOwnerId)
>         REFERENCES TeamOwner (id) ON DELETE CASCASE;
> 
> table teamOwner (id)
> table league (id, leagueOwnerId)
> where leagueOwnerId is a FKey to owner(id)

What problem are you having?  The above works for me assuming teamowner
has a unique constraint on id on current sources.