Re: Hybrid Hash/Nested Loop joins and caching results from subplans

From: Peter Geoghegan <pg(at)bowt(dot)ie>
To: David Rowley <dgrowleyml(at)gmail(dot)com>
Cc: PostgreSQL Developers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: Hybrid Hash/Nested Loop joins and caching results from subplans
Date: 2020-08-05 20:40:52
Message-ID: CAH2-WzmQ5J4M4SrWU+QTwG5Z7Ay8Oac2OfnFJ2nuzUN_2mAzTg@mail.gmail.com
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On Wed, May 20, 2020 at 4:44 AM David Rowley <dgrowleyml(at)gmail(dot)com> wrote:
> Does it seem like something we might want for PG14?

Minor terminology issue: "Hybrid Hash Join" is a specific hash join
algorithm which is unrelated to what you propose to do here. I hope
that confusion can be avoided, possibly by not using the word hybrid
in the name.

--
Peter Geoghegan

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