Re: pgsql: Change wal_compression=on to the first of zstd, lz4, pglz

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Tomas Vondra <tomas(at)vondra(dot)me>
Cc: pgsql-committers(at)lists(dot)postgresql(dot)org
Subject: Re: pgsql: Change wal_compression=on to the first of zstd, lz4, pglz
Date: 2026-08-12 15:55:59
Message-ID: 2730783.1786550159@sss.pgh.pa.us
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Tomas Vondra <tomas(at)vondra(dot)me> writes:
> On 8/12/26 01:52, Tom Lane wrote:
>> [ raised eyebrow... ] I don't object to this change in master,
>> but it seems pretty out of scope for v19 at this point.

> Yeah. The consensus in the discussion thread was it'd be good to do this
> in 19, together with the TOAST compression default. I wasn't sure about
> that, so I consulted with the RMT and the response was it's OK.

Ah. The point about changing this along with the TOAST compression
default does make sense. Objection withdrawn ... but this needs
to get into the v19 release notes beside the other change.

regards, tom lane

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