From: | Simon Riggs <simon(at)2ndQuadrant(dot)com> |
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To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Stephen Frost <sfrost(at)snowman(dot)net>, Kouhei Kaigai <kaigai(at)ak(dot)jp(dot)nec(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: | 2014-05-11 08:22:53 |
Message-ID: | CA+U5nMJx_+HM3DvpYvfb7shAd8pG4UR1_YSx_eYkC8+wU7tYVQ@mail.gmail.com |
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Lists: | pgsql-hackers |
On 8 May 2014 22:55, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> We're past the prototyping stage and into productionising what we know
>> works, AFAIK. If that point is not clear, then we need to discuss that
>> first.
>
> OK, I'll bite: what here do we know works? Not a damn thing AFAICS;
> it's all speculation that certain hooks might be useful, and speculation
> that's not supported by a lot of evidence. If you think this isn't
> prototyping, I wonder what you think *is* prototyping.
My research contacts advise me of this recent work
http://www.ntu.edu.sg/home/bshe/hashjoinonapu_vldb13.pdf
and also that they expect a prototype to be ready by October, which I
have been told will be open source.
So there are at least two groups looking at this as a serious option
for Postgres (not including the above paper's authors).
That isn't *now*, but it is at least a time scale that fits with
acting on this in the next release, if we can separate out the various
ideas and agree we wish to proceed.
I'll submerge again...
--
Simon Riggs http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
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