David Rowley <david.row...@2ndquadrant.com> writes: > I wonder if it's better just to hard code these two cases before even > calling the pow() function.
Yeah, see my followup --- I also found out that SUSv2 (POSIX 1997) doesn't require either of these special cases, which helps explain why the inconsistency on older platforms. Hacking on a patch now. regards, tom lane