Re: Greatest Common Divisor
Tom Lane <[email protected]>
| Newsgroups | gmane.comp.db.postgresql.devel.general |
|---|---|
| Message-ID | <[email protected]> |
Vik Fearing <[email protected]> writes: > On 03/01/2020 20:14, Fabien COELHO wrote: >> I'm unsure about gcd(INT_MIN, 0) should error. Possibly 0 would be nicer? > What justification for that do you have? Zero is the "correct" answer for that, isn't it, independently of overflow considerations? We should strive to give the correct answer if it's known and representable, rather than have arbitrary failure conditions. (IOW, we should throw errors only when the *result* is out of range or undefined, not just because the input is an edge case.) regards, tom lane