Cedar,

(sorry for the double posting, folks)

> 2. Can a column reference another column in the same table?  eg..
> 
>   CREATE TABLE bloo (
>     id int4,
>     p_id int4 REFERENCES bloo (id)
>   -- or
>   --p_id int4 REFERENCES (id)
>   )

You don't do this with REFERENCES ... you do it with a CHECK CONSTRAINT
(look it up in the docs).

-Josh Berkus

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