Re: Speed up COPY FROM text/CSV parsing using SIMD

From: Nathan Bossart <nathandbossart(at)gmail(dot)com>
To: Nazir Bilal Yavuz <byavuz81(at)gmail(dot)com>
Cc: Greg Burd <greg(at)burd(dot)me>, Manni Wood <manni(dot)wood(at)enterprisedb(dot)com>, KAZAR Ayoub <ma_kazar(at)esi(dot)dz>, Neil Conway <neil(dot)conway(at)gmail(dot)com>, Andrew Dunstan <andrew(at)dunslane(dot)net>, Shinya Kato <shinya11(dot)kato(at)gmail(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Speed up COPY FROM text/CSV parsing using SIMD
Date: 2026-03-13 16:16:49
Message-ID: abQ4cZo3JxyQRII9@nathan
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On Fri, Mar 13, 2026 at 07:14:06PM +0300, Nazir Bilal Yavuz wrote:
> On Fri, 13 Mar 2026 at 18:29, Greg Burd <greg(at)burd(dot)me> wrote:
>> I also created a few tests (attached) to check boundary conditions, I
>> might add some along with the RISC-V work.
>
> Thank you for the tests! I have checked them and the output is the
> same on both v17 and master. Do you think it would make sense to add
> them as regression tests?

Seems like a good idea. I was curious what the test coverage looked like
without extra tests. Once there's a report, we could choose a subset of
these to close any gaps.

--
nathan

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