Re: Patch: Range Merge Join

From: Jaime Casanova <jcasanov(at)systemguards(dot)com(dot)ec>
To: Jeff Davis <pgsql(at)j-davis(dot)com>
Cc: David Rowley <dgrowleyml(at)gmail(dot)com>, Thomas <thomasmannhart97(at)gmail(dot)com>, PostgreSQL Developers <pgsql-hackers(at)lists(dot)postgresql(dot)org>, boehlen(at)ifi(dot)uzh(dot)ch, dignoes(at)inf(dot)unibz(dot)it, gamper(at)inf(dot)unibz(dot)it, P(dot)Moser(at)noi(dot)bz(dot)it
Subject: Re: Patch: Range Merge Join
Date: 2021-10-05 00:30:34
Message-ID: 20211005003034.GA30929@ahch-to
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> On Mon, Oct 04, 2021 at 04:27:54PM -0500, Jaime Casanova wrote:
>> On Thu, Jun 10, 2021 at 07:14:32PM -0700, Jeff Davis wrote:
>> >
>> > I'll start with the reason I set the work down before: it did not work
>> > well with multiple join keys. That might be fine, but I also started
>> > thinking it was specialized enough that I wanted to look into doing it
>> > as an extension using the CustomScan mechanism.
>> >
>> > Do you have any solution to working better with multiple join keys? And
>> > do you have thoughts on whether it would be a good candidate for the
>> > CustomScan extension mechanism, which would make it easier to
>> > experiment with?
>> >
>> Hi,
>> It seems this has been stalled since jun-2021. I intend mark this as
>> RwF unless someone speaks in the next hour or so.

Thomas <thomasmannhart97(at)gmail(dot)com> wrote me:

> Hi,
> I registered this patch for the commitfest in july. It had not been reviewed and moved to the next CF. I still like to submit it.
> Regards,
> Thomas

Just for clarification RwF doesn't imply reject of the patch.
Nevertheless, given that there has been no real review I will mark this
patch as "Waiting on Author" and move it to the next CF.

Meanwhile, cfbot (aka says this doesn't
compile. Here is a little patch to fix the compilation errors, after
that it passes all tests in make check-world.

Also attached a rebased version of your patch with the fixes so we turn
cfbot entry green again

Jaime Casanova
Director de Servicios Profesionales
SystemGuards - Consultores de PostgreSQL

Attachment Content-Type Size
rmj_fixes_to_compile.txt text/plain 1002 bytes
postgres-rmj-20211004.patch text/x-diff 46.6 KB

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