"Paragon Corporation" <l...@pcorp.us> writes: >> Yes. The FDW author is not expected to implement those clauses; where do >> you see documentation saying otherwise?
> I didn't. I was copying the postgres_fdw and noticed it implemented them > directly. Ah. I believe that's mostly just an efficiency hack (and a fairly trivial one too, at least in postgres_fdw's case). I suppose there might be an argument that if we don't exclude tables at this stage, we could get a parse-time failure from features not supported on the local server, which would be unexpected if the user had told us to skip such tables. But that seems a bit implausible. I'll go add a comment about this though, to clarify matters for the next person. regards, tom lane -- Sent via pgsql-hackers mailing list (email@example.com) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers