On Fri, Apr 7, 2023 at 10:44:09PM -0400, Tom Lane wrote: > Bruce Momjian <br...@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.
The patch has you assign an option at CREATE AGGREGATE time if it can do push down, and postgres_fdw checks that. What whitelisting mechanism are you talking about? async_capable? -- Bruce Momjian <br...@momjian.us> https://momjian.us EDB https://enterprisedb.com Embrace your flaws. They make you human, rather than perfect, which you will never be.
