PostgreSQL Replication Slots

I need to know how this should be approached once I put this thing in prod, as deleting the replication slot is just a workaround Another query

src=# DELETE FROM nopk WHERE foo='boston'; ERROR: cannot delete from table nopk because it does not have a replica identity and publishes

slot gacor88 Remove all subscriptions before you remove the CDC Replication Engine for PostgreSQL instance It the subscriptions are not removed, you must drop all

magic 777 slot Replication slots were introduced in PostgreSQL to help ensure a primary PostgreSQL instance does not remove WAL files before a replica has