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: 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>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Speed up COPY FROM text/CSV parsing using SIMD
Date: 2026-03-11 18:09:21
Message-ID: abGv0ScUWVa6eogw@nathan
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On Wed, Mar 11, 2026 at 02:36:46PM +0300, Nazir Bilal Yavuz wrote:
> 0002 has an attempt to remove some branches from SIMD code but since
> it is kind of functional change, I wanted to attach that as another
> patch. I think we can apply some parts of this, if not all.

Could you describe what this is doing and what the performance impact is?

--
nathan

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