Horton

Extend documentation for pg_stat_replication.backend_xmin

Renzo Dani <arons7@gmail.com>

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From: Renzo Dani <arons7@gmail.com>
To: pgsql-hackers@postgresql.org
Date: 2025-10-15T15:47:33Z
Lists: pgsql-hackers

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Hi,
recently I had some issue understanding what was going on with a replica
and the reported xmin.
I have than created a patch to better specify the value expected into
the pg_stat_replication.backend_xmin field.

Regards,
Renzo Dani

Commits

  1. doc: Clarify when backend_xmin in pg_stat_replication can be NULL.