On Mon, Sep 28, 2015 at 3:34 AM, Kouhei Kaigai <kai...@ak.jp.nec.com> wrote: > The attached patch allows FDW driver to handle EPQ recheck by its own > preferable way, even if it is alternative local join or ExecQual to > the expression being pushed down.
Thanks. I was all set to commit this, or at least part of it, when I noticed that we already have an FDW callback called RefetchForeignRow. We seem to be intending that this new callback should refetch the row from the foreign server and verify that any pushed-down quals apply to it. But why can't RefetchForeignRow do that? That seems to be what it's for. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (firstname.lastname@example.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers