The 9.5 release notes contain this promising but cryptic item: - Allow foreign data wrappers and custom scans to implement join pushdown (KaiGai Kohei)
As phrased, this seems to mean, "it can be done, but we haven't done it". But there is no link to any documentation that explains how to do this. The commit that appears to have added this feature touches postgres_fdw, but neither the documentation nor the tests show anything about this feature, and I haven't been able to reproduce anything that would seem to indicate anything like this is at work. So what is the actual extent of this feature? -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
