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
> 

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