Set up logical replication and decoding

If you've manually created a replication slot on the primary , this slot

The concept of replication slots was introduced in PostgreSQL and was created to prevent a primary instance to delete WAL that a replica

drop em slot The WAL files will just pile up So you need to monitor the slots and manually drop them Only when you do that will the master delete anything

drop em slot demo Disconnecting Subscribers If communication is functioning, unhook a subscriber is run DROP SUBSCRIPTION , and the corresponding replication slot will be