"Bruno Baguette" <bruno(dot)baguette(at)netcourrier(dot)com> writes:
> So, is it possible to create a column with an UNSIGNED INT4 type ?
No.
You could use OID, which just happens to be 4 bytes unsigned. But a
cleaner approach IMHO would be to use int8 and put a CHECK constraint
on it to limit the range of values.
regards, tom lane