in the pg14 document(https://www.postgresql.org/docs/14/runtime-config-preset.html)
in_hot_standby parameter: Reports whether the server is currently in hot standby mode. When this is on, all transactions are forced to be read-only. Within a session, this can change only if the server is promoted to be primary. See Section 27.4 for more information. "Within a session, this can change only if the server is promoted to be primary"--- I can not understand this statement. I think document will tell us: when the postgresql cluster is in the standby database role, the standby database parameter in_hot_standby value will change to on，and this in_hot_standby parameter can not been modified in the session. I do not know what I say is correct or not.
