On Mon, 2005-09-26 at 20:03, Tom Lane wrote:
> Ferindo Middleton Jr <fmiddleton@verizon.net> writes:
> > Is there some reason why the SERIAL data type doesn't automatically have
> > a UNIQUE CONSTRAINT.
>
> It used to, and then we decoupled it. I don't think "I have no use for
> one without the other" translates to an argument that no one has a use
> for it ...
I have to admit, right after the change was made, I was of the opinion
that no one would ever need that. Then, a few months later, it was
exactly what I needed for some project... :)