Horton

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

David Rowley <dgrowleyml@gmail.com>

View thread View on postgr.es
From: David Rowley <dgrowleyml@gmail.com>
To: Ranier Vilela <ranier.vf@gmail.com>
Cc: Ronan Dunklau <ronan.dunklau@aiven.io>, James Coleman <jtc331@gmail.com>, PostgreSQL Developers <pgsql-hackers@lists.postgresql.org>, Dilip Kumar <dilipbalaut@gmail.com>
Date: 2021-07-14T23:43:20Z
Lists: pgsql-hackers 
On Thu, 15 Jul 2021 at 05:55, Ranier Vilela <ranier.vf@gmail.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

Commits

  1. Make nodeSort.c use Datum sorts for single column sorts