Jean-Luc Lachance <jllachan(at)nsd(dot)ca> writes:
> If you try it, you will get the same result, but it is the wrong answer.
> Factorial work up to 20. After that one gets negative results.
There's a TODO item to replace the existing integer-based factorial ops
with a NUMERIC-based one, which would work for output values up to
whatever the NUMERIC precision limit is (10^1000, I think). Want to
work on that?
regards, tom lane