"Steven Flatt" <steven.flatt@gmail.com> writes:
> I can't seem to find an answer to this.
>
> If I upgrade a 32-bit Postgres build to a 64-bit Postgres build
> (same version), will the data files be compatible or do I have to do
> a dump and restore of the database?
They will not be compatible.
> Is the answer the same for 8.1 and 8.2?
Yes.
-Doug