pg_upgrade is not correct

On Tue, Dec 8, 2020 at 03:13:30AM +0000, PG Doc comments form wrote:

The following documentation comment has been logged on the website:

Page: https://www.postgresql.org/docs/10/pgupgrade.html
Description:

If we use the following command to upgrade the standby server, then new
cluster will create by old_cluster which is not correct.
rsync --archive --delete --hard-links --size-only --no-inc-recursive
old_cluster new_cluster remote_dir
I used following command and this one is correct:
rsync --archive --delete --hard-links --size-only --no-inc-recursive
new_cluster old_cluster remote_dir
So the only thing need to change is the place of old_cluster and new_cluster
in rsync command.

I am not sure how to reply. These instructions have been unchanged for
a few years. Why is the order you suggest correct?

--
Bruce Momjian <bruce@momjian.us> https://momjian.us
EnterpriseDB https://enterprisedb.com

The usefulness of a cup is in its emptiness, Bruce Lee