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Access aggregation functions in plan stage of fdw? 2+ messages / 2 participants [nested] [flat]
* Access aggregation functions in plan stage of fdw? @ 2013-12-12 01:00 Ian Pye <ianpye@gmail.com> 0 siblings, 1 reply; 2+ messages in thread From: Ian Pye @ 2013-12-12 01:00 UTC (permalink / raw) To: pgsql-interfaces I'm trying to write a fdw where aggregate functions are pushed down to the underlaying data store. I can't find a way to get a list of these out of the query* struct however. Is this possible? Any pointers appreciated. Failing this, can I just get the original query as a string? ^ permalink raw reply [nested|flat] 2+ messages in thread
* Re: Access aggregation functions in plan stage of fdw? @ 2013-12-12 02:50 Tom Lane <tgl@sss.pgh.pa.us> parent: Ian Pye <ianpye@gmail.com> 0 siblings, 0 replies; 2+ messages in thread From: Tom Lane @ 2013-12-12 02:50 UTC (permalink / raw) To: Ian Pye <ianpye@gmail.com>; +Cc: pgsql-interfaces Ian Pye <ianpye@gmail.com> writes: > I'm trying to write a fdw where aggregate functions are pushed down to the > underlaying data store. > Is this possible? Not yet. You can find various speculation about doing this in the pgsql-hackers archives from the last month or so. It's going to require some significant planner-infrastructure work, IMO, but we might have it for 9.5. regards, tom lane -- Sent via pgsql-interfaces mailing list (pgsql-interfaces@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-interfaces ^ permalink raw reply [nested|flat] 2+ messages in thread
end of thread, other threads:[~2013-12-12 02:50 UTC | newest] Thread overview: 2+ messages (download: mbox mbox.gz follow: Atom feed) -- links below jump to the message on this page -- 2013-12-12 01:00 Access aggregation functions in plan stage of fdw? Ian Pye <ianpye@gmail.com> 2013-12-12 02:50 ` Tom Lane <tgl@sss.pgh.pa.us>
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