Re: PGLZ Compression Optimization

From: Daniel Gustafsson <daniel(at)yesql(dot)se>
To: wenhui qiu <qiuwenhuifx(at)gmail(dot)com>
Cc: Andrey Borodin <x4mmm(at)yandex-team(dot)ru>, Tomas Vondra <tomas(at)vondra(dot)me>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: PGLZ Compression Optimization
Date: 2026-07-17 08:36:45
Message-ID: B343722E-E693-46D6-8FCE-5F8CB3CBFDDC@yesql.se
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> On 17 Jul 2026, at 10:17, wenhui qiu <qiuwenhuifx(at)gmail(dot)com> wrote:

> Thank you for providing this information; I’ll take a close look at it.LZ4 is
> just too good—no matter how hard I try to improve PGLZ, it can’t even come
> close to it.

That's probably true, but given that there are lots of clusters using pglz in
production, if we could shave x% of time it takes to decode that could still
be worthwhile.

--
Daniel Gustafsson

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