Re: [PATCH] Use optimized single-datum tuplesort in ExecSort

From: David Rowley <dgrowleyml(at)gmail(dot)com>
To: Ranier Vilela <ranier(dot)vf(at)gmail(dot)com>
Cc: Ronan Dunklau <ronan(dot)dunklau(at)aiven(dot)io>, James Coleman <jtc331(at)gmail(dot)com>, PostgreSQL Developers <pgsql-hackers(at)lists(dot)postgresql(dot)org>, Dilip Kumar <dilipbalaut(at)gmail(dot)com>
Subject: Re: [PATCH] Use optimized single-datum tuplesort in ExecSort
Date: 2021-07-14 23:43:20
Message-ID: CAApHDvr_RxovKetRkTADjvQ0fSfkK=aQ4kryjCZgGM0NVOGEeg@mail.gmail.com
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On Thu, 15 Jul 2021 at 05:55, Ranier Vilela <ranier(dot)vf(at)gmail(dot)com> wrote:
> I repeated (3 times) the benchmark with v8 here,
> and the results were not good.

Do you have any good theories on why the additional branching that's
done in v7b vs v8 might cause it to run faster?

David

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