doc: pg_upgrade, clarify standby servers must remain running

Bruce Momjian <bruce@momjian.us>

Commit: b0d049e8fa0c7ad61f7aa0c95e2987b8bace7090
Author: Bruce Momjian <bruce@momjian.us>
Date: 2023-09-26T22:54:10Z
Releases: 17.0
doc: pg_upgrade, clarify standby servers must remain running

Also mention that mismatching primary/standby LSNs should never
happen.

Reported-by: Nikolay Samokhvalov

Discussion: https://postgr.es/m/CAM527d8heqkjG5VrvjU3Xjsqxg41ufUyabD9QZccdAxnpbRH-Q@mail.gmail.com

Backpatch-through: 11

Files

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doc/src/sgml/ref/pgupgrade.sgml modified +2 −4

Documentation touched