"Norman Young" <nbyoung (AT) westernavionics (DOT) com> writes:
Actually, I'd argue that it's the Linux atan2() that's broken. But
in any case, what you're looking at is a difference in the behavior
of the underlying library functions on the two platforms. We do not
try to second-guess libm ...

regards, tom lane

---------------------------(end of broadcast)---------------------------
TIP 9: In versions below 8.0, the planner will ignore your desire to
choose an index scan if your joining column's datatypes do not
match