Kevin Brannen <kevinb(at)nurseamerica(dot)net> writes:
> To easily change a column from nullable to not-nullable, is flipping the
> proper attribute all that's required? Just asking, cause it would be
> very useful until there's an ALTER TABLE equivalent (in 7.3?).
Sure, just flip the bit (though if you're going to the not-nullable
state, it's your responsibility to make sure the existing data is in
fact not null). This is basically what the 7.3 implementation does.
regards, tom lane