Re: Why doesn't the SERIAL data type automatically have a UNIQUE CONSTRAINT

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 ...
        regards, tom lane