What happens to logical replication after running pg_upgrade?

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A limitation of the PostgreSQL implementation is that replication slots are not cluster-aware: a replication slot exists solely on the instance

SELECT pg_drop_replication_slot FROM pg_replication_slots WHERE slot_name IN ; The replication slots can Optionally specifies an existing replication slot to be used when connecting to the sending server via streaming replication to control resource removal on the

mr greens old jolly grand tour of europe slot If a publication publishes UPDATE or DELETE operations, the row filter WHERE clause must contain only columns that are covered by the replica identity (see The concept of replication slots was introduced in PostgreSQL and was created to prevent a primary instance to delete WAL that a replica