From:
Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To:
Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
Cc:
Shigeru Hanada <shigeru(dot)hanada(at)gmail(dot)com>,
Kohei KaiGai <kaigai(at)kaigai(dot)gr(dot)jp>,
Robert Haas <robertmhaas(at)gmail(dot)com>,
PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject:
Re: WIP: Join push-down for foreign tables
Date:
2011-12-02 23:05:03
Message-ID:
26504.1322867103@sss.pgh.pa.us (view raw or flat )
Thread:
2011-09-14 09:24:25 from Shigeru Hanada <shigeru(dot)hanada(at)gmail(dot)com>
2011-09-21 03:52:01 from Michael Paquier <michael(dot)paquier(at)gmail(dot)com>
2011-09-21 06:11:16 from Shigeru Hanada <shigeru(dot)hanada(at)gmail(dot)com>
2011-09-21 07:20:06 from Michael Paquier <michael(dot)paquier(at)gmail(dot)com>
2011-10-03 08:07:04 from Kohei KaiGai <kaigai(at)kaigai(dot)gr(dot)jp>
2011-10-04 10:08:24 from Shigeru Hanada <shigeru(dot)hanada(at)gmail(dot)com>
2011-10-07 16:06:48 from Kohei KaiGai <kaigai(at)kaigai(dot)gr(dot)jp>
2011-10-09 11:35:56 from Kohei KaiGai <kaigai(at)kaigai(dot)gr(dot)jp>
2011-10-09 15:10:26 from Florian Pflug <fgp(at)phlo(dot)org>
2011-10-10 13:10:20 from Shigeru Hanada <shigeru(dot)hanada(at)gmail(dot)com>
2011-10-10 16:42:35 from Robert Haas <robertmhaas(at)gmail(dot)com>
2011-10-10 16:58:51 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2011-10-21 14:53:33 from Kohei KaiGai <kaigai(at)kaigai(dot)gr(dot)jp>
2011-10-24 11:40:30 from Shigeru Hanada <shigeru(dot)hanada(at)gmail(dot)com>
2011-11-15 17:16:52 from Shigeru Hanada <shigeru(dot)hanada(at)gmail(dot)com>
2011-11-17 09:02:56 from Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
2011-11-17 15:24:44 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2011-12-02 13:01:06 from Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
2011-12-02 16:55:12 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2011-12-02 20:51:42 from Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
2011-12-02 22:24:40 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2011-12-02 22:57:54 from Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
2011-12-02 23:05:03 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2012-01-05 10:58:09 from Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
Lists:
pgsql-hackers
Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com> writes:
> Hmm, so you're saying that the FDW function needs to be able to return
> multiple paths for a single joinrel. Fair enough, and that's not
> specific to remote joins. Even a single-table foreign scan could be
> implemented differently depending on whether you prefer fast-start or
> cheapest total.
... or ordered vs unordered, etc. Yeah, good point, we already got this
wrong with the PlanForeignScan API. Good thing we didn't promise that
would be stable.
regards, tom lane
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