postgres could not create replication slot

replication as opposed to physical replication -C: The option allows you to create a replication slot before the backup gets underway

A single replication slot can exist only for a single consumer or process

replication slot Creating a Replication Slot Now that we have a running PostgreSQL exist, skipping NOTICE: table pgbench_accounts does not exist

replication slot already exists replication slot mysub on publisher CREATE SUBSCRIPTION The already exists dst=# SELECT currval, nextval('s_a_seq