Re: [HACKERS] Secondary index access optimizations

From: Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>
To: Konstantin Knizhnik <k(dot)knizhnik(at)postgrespro(dot)ru>
Cc: Michael Paquier <michael(dot)paquier(at)gmail(dot)com>, Thomas Munro <thomas(dot)munro(at)enterprisedb(dot)com>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org>, Amit Langote <Langote_Amit_f8(at)lab(dot)ntt(dot)co(dot)jp>
Subject: Re: [HACKERS] Secondary index access optimizations
Date: 2017-12-04 16:44:37
Message-ID: 20171204164437.lqjpeawybmrg7lw6@alvherre.pgsql
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Konstantin Knizhnik wrote:
>
>
> On 30.11.2017 05:16, Michael Paquier wrote:
> > On Mon, Nov 6, 2017 at 10:13 PM, Konstantin Knizhnik
> > <k(dot)knizhnik(at)postgrespro(dot)ru> wrote:
> > > Concerning broken partition_join test: it is "expected" failure: my patch
> > > removes from the plans redundant checks.
> > > So the only required action is to update expected file with results.
> > > Attached please find updated patch.
> > The last patch version has conflicts in regression tests and did not
> > get any reviews. Please provide a rebased version. I am moving the
> > patch to next CF with waiting on author as status. Thanks!
>
> Rebased patch is attached.

I don't think this is a rebase on the previously posted patch ... it's
about 10x as big and appears to be a thorough rewrite of the entire
optimizer.

--
Álvaro Herrera https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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