On 2015/03/14 7:18, Robert Haas wrote:
I think the foreign data wrapper join pushdown case, which also aims to substitute a scan for a join, is interesting to think about, even though it's likely to be handled by a new FDW method instead of via the hook. Where should the FDW method get called from?
I haven't had enough time to review the patch in details yet, so I don't know where we should call the method, but I'd vote for the idea of substituting a scan for a join, because I think that idea would probably allow update pushdown, which I'm proposing in the current CF, to scale up to handling a pushed-down update on a join.
Best regards, Etsuro Fujita -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
