Ron Johnson <ron(dot)l(dot)johnson(at)cox(dot)net> writes:
> Will there be any advantages to running Pg on a 64-bit CPU rather
> than 32-bit?
Not so's you'd notice. PG is designed to be cross-platform, and at
the moment that means 32-bit-centric. There's been occasional talk
of improving the performance of float8 and int8 types on 64-bit
machines, but so far it's only idle talk; and in any case I think
that performance improvements for those two datatypes wouldn't have
much effect for average applications.
regards, tom lane