Matthew Nourse <matthew(at)nplus1(dot)com(dot)au> writes:
> As NOT NULL on domains doesn't always prevent a value from becoming NULL
> (and because it "sucks" :) ) would you consider deprecating the
> not-null-on-domains feature and then removing it from some future
> version of PostgreSQL?
We can't really because it's required by SQL standard. Perhaps at some
point the standards committee will think it through a little better and
publish something that resolves the contradictions. For the moment the
bottom line is that it's got debatable behavior and is best avoided.
regards, tom lane