Bruce Momjian <bruce@momjian.us> writes:
> On Fri, Apr 7, 2023 at 09:55:00PM -0400, Tom Lane wrote:
>> Uh, what? Why would we not be able to tell from the remote server's
>> version number whether it has this ability?
> The issue is not a mismatch of postgres_fdw versions but the extension
> versions and whether the partial aggregate functions exist on the remote
> side, e.g., something like a PostGIS upgrade.
postgres_fdw has no business pushing down calls to non-builtin functions
unless the user has explicitly authorized that via the existing
whitelisting mechanism. I think you're reinventing the wheel,
and not very well.
regards, tom lane
