Chapman Flack <chap@anastigmatix.net> writes:
> I wonder whether even changing a formerly-implicit cast to explicit
> would be too much of a behavior change for existing code that expects
> the current behavior?
We did exactly that during the 8.3 cycle, and got one heck of a lot of
pushback about it, despite the existence of a lot of examples showing
that it would be a good idea. I won't say we can't do it again, but
it won't be an easy sell.
regards, tom lane