| From: | Simon Riggs <simon(at)2ndQuadrant(dot)com> |
|---|---|
| To: | Stephen Frost <sfrost(at)snowman(dot)net> |
| Cc: | Kouhei Kaigai <kaigai(at)ak(dot)jp(dot)nec(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Robert Haas <robertmhaas(at)gmail(dot)com>, Andres Freund <andres(at)2ndquadrant(dot)com>, PgHacker <pgsql-hackers(at)postgresql(dot)org>, Shigeru Hanada <shigeru(dot)hanada(at)gmail(dot)com>, Jim Mlodgenski <jimmy76(at)gmail(dot)com>, Peter Eisentraut <peter_e(at)gmx(dot)net>, Kohei KaiGai <kaigai(at)kaigai(dot)gr(dot)jp> |
| Subject: | Re: [v9.5] Custom Plan API |
| Date: | 2014-05-08 14:03:40 |
| Message-ID: | CA+U5nM+ZLPEK3Yem6_NML5bKtOW9oGkKMw6igga=--NSOLCo8A@mail.gmail.com |
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| Lists: | pgsql-hackers |
On 8 May 2014 14:49, Stephen Frost <sfrost(at)snowman(dot)net> wrote:
> Your downthread comments on 'CREATE MATERIALIZED VIEW' are in the same
> vein, though there I agree that we need it per-relation as there are
> other trade-offs to consider (storage costs of the matview, cost to
> maintain the matview, etc, similar to indexes).
>
> The PGStrom proposal, aiui, is to add a new join type which supports
> using a GPU to answer a query where all the data is in regular PG
> tables. I'd like that to "just work" when a GPU is available (perhaps
> modulo having to install some extension), for any join which is costed
> to be cheaper/faster when done that way.
All correct and agreed. As I explained earlier, lets cover the join
requirement here and we can discuss lookasides to data structures at
Pgcon.
--
Simon Riggs http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
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