Re: [idea] table partition + hash join

From: Atri Sharma <atri(dot)jiit(at)gmail(dot)com>
To: Amit Langote <Langote_Amit_f8(at)lab(dot)ntt(dot)co(dot)jp>
Cc: Kouhei Kaigai <kaigai(at)ak(dot)jp(dot)nec(dot)com>, "pgsql-hackers(at)postgreSQL(dot)org" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: [idea] table partition + hash join
Date: 2015-06-10 08:53:27
Message-ID: CAOeZVid8m0-VPQzJH_RBssL6ydn-g7Z3+ygb=6CqzQCKKr-7Mw@mail.gmail.com
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On Wed, Jun 10, 2015 at 2:16 PM, Amit Langote <Langote_Amit_f8(at)lab(dot)ntt(dot)co(dot)jp
> wrote:

>
> Perhaps the qual needs to be pushed all the way down
> to the Hash's underlying scan if that makes sense.
>

And that is a Pandora's box of troubles IMHO unless done in a very careful
manner.

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