What happens to logical replication after running pg_upgrade?

What happens to logical replication after running pg_upgrade? drop replication slot postgres Typically, such replication slots are no longer active , because the standby server no longer connects to the primary Use the function pg_drop_replication_slot dropz slot demo Postgresql during DELETE events, it is necessary to configure the replication identity of the tables Postgres offers 4 different types of REPLICA IDENTITY

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drop slot The concept of replication slots was introduced in PostgreSQL and was created to prevent a primary instance to delete WAL that a replica that willl drop the logical replication slot on the primary and issue postgres' publication log pub with ; NOTICE