Re: Clarify base backups and local pg_wal recycling - Mailing list pgsql-docs

From David G. Johnston
Subject Re: Clarify base backups and local pg_wal recycling
Date
Msg-id CAKFQuwaSirU_9KXzH=qbHfd75V5KBQnen4m-J8woz0hMZs8MDQ@mail.gmail.com
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In response to Re: Clarify base backups and local pg_wal recycling  (Laurenz Albe <laurenz.albe@cybertec.at>)
List pgsql-docs
On Wednesday, September 30, 2026, Laurenz Albe <laurenz.albe@cybertec.at> wrote:
On Tue, 2026-09-29 at 21:03 +0530, Toppr Tenali wrote:

> However, I could not find an explicit statement about whether taking or completing a
> base backup itself affects when WAL segments in the local pg_wal directory become
> eligible for recycling/removal.
>
> Could the documentation explicitly clarify this relationship?

I don't think that there is a relationship between WAL recycling and a base backup,
so there is nothing to document.

In fact, the wording of -X fetch mode shows the non-linkage quite well.   Likewise -X stream also explains how pg_basebackup provides a behavior to deal with the noninherent coordination between the two systems.

David J.

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