On Thu, Sep 16, 2010 at 3:15 PM, SAKAMOTO Masahiko <sakamoto.masah...@oss.ntt.co.jp> wrote: > This is designed to be used in the executor module. > The API has some simple interfaces, such as FreeConnection, > Open, Iterate, Close, ReOpen, and OnError.
Of course they are similar APIs mentioned in the SQL standard, but I'm not sure they are enough for all purposes. For example, they don't have planner hooks, but we will need them eventually to push down ORDER BY and LIMIT into FDW. We could learn from MySQL's storage engine interface, because they are designed for flat file wrapper at first, but enhanced with pains for condition push-down. -- Itagaki Takahiro -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
