Hi everyone,
While reviewing docs for [1] I came across a phrase in pg_rewind.sgml that seems confusing:
"... The point of divergence can be found either on the target timeline, the source timeline, or their common ancestor. In the typical failover scenario where the target cluster was shut down soon after the divergence, this is not a problem, but if the target cluster ran for a long time after the divergence, the old WAL files might no longer be present. In that case, they can be manually copied from the WAL archive to the pg_wal directory, or fetched on startup by configuring primary_conninfo or restore_command. "
While beginning of this paragraph talks about scanning target cluster WALs, the "or fetched on startup" part suggests that we are applying the source cluster WALs already, so I would simply remove it from here. To avoid source/target confusion, we could also add another hint that it's target WALs we are talking about.
Please consider the attached fix.
[1] https://www.postgresql.org/message-id/a3acff50-5a0d-9a2c-b3b2-ee36168955c1%40postgrespro.ru
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Liudmila Mantrova
Technical writer at Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company