You can use ALTER TABLE ADD CONSTRAINT to add foreign key constraints
after table creation.
On Tue, 2 Jan 2001, GH wrote:
>
> Is something like the following allowed (or is not a Bad Idea)?
>
> table1
> ---------+-------------------------
> id1 |serial primary key
> col2 |int references table2(id2)
>
> table2
> ---------+-------------------------
> id2 |serial primary key
> col2 |int references table1(id1)
>
>
> Obviously, creating the tables is a problem since the constraints require
> that the other table exists.
> If doing the above is *not* a Bad Idea, how could I work around this
> problem?
> (That is, (how) can I add the constraints after table creation?
> I imagine something with "create constraint trigger", but the manual is
> not very clear on that.)
>
>
> Thanks
>
> dan
>
