Josh Berkus <josh@agliodbs.com> writes:
> (2) this change, while very useful, does change what had been a simple
> rule ("All variables are NULL unless specifically set otherwise") into a
> conditional one ("All variables are NULL unless set otherwise OR unless
> they are declared as domain types with defaults"). Do people feel that
> the new behavior would be sufficiently intuitive to avoid user confusion?
I'm inclined to leave it alone. It complicates the mental model, and
frankly attaching defaults to domains was not one of the SQL committee's
better ideas anyway. It's *fundamentally* non-orthogonal.
regards, tom lane