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From: Nazir Bilal Yavuz <[email protected]>
To: Manni Wood <[email protected]>
Cc: Andrew Dunstan <[email protected]>
Cc: Nathan Bossart <[email protected]>
Cc: KAZAR Ayoub <[email protected]>
Cc: Neil Conway <[email protected]>
Cc: Shinya Kato <[email protected]>
Cc: PostgreSQL-development <[email protected]>
Subject: Re: Speed up COPY FROM text/CSV parsing using SIMD
Date: Fri, 6 Mar 2026 21:55:26 +0300
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Hi Manni!

On Fri, 6 Mar 2026 at 21:13, Manni Wood <[email protected]> wrote:
>
> When I ran `meson setup build --buildtype=debugoptimized` on both my x86 machine and my arm machine, the response on both was:
>
> "External libraries
> "  lz4                      : NO"
>
> However, I did not remove commit 34dfca2934 from any of my Postgres builds; I left that commit in place.
>
> Let me know if that helps!

That definitely helps, thanks! If you have a chance, could you also
run the benchmark with LZ4 enabled? I expect you may see significantly
better performance, similar to what I observed.

-- 
Regards,
Nazir Bilal Yavuz
Microsoft





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