replication slot mysub was not created in this database

With the change in Postgres 16, when you're on a standby, you can actually create a logical replication slot There are a few mechanics around

Logical replication is a method of replicating data objects and their changes, based upon their replication identity

postgresql replication slot How it works When a logical replication slot is created, Postgres creates a snapshot of the current state of the database and records the consistent point

postgresql drop replication slot In the context of PostgreSQL, logical replication employs a publishersubscriber model to mirror changes between PostgreSQL servers The primary