Capture from PostgreSQL using Logical Replication - HVR 6

One statistics record of pg_stat_replication_slots is created for each logical replication slot described above Only one receiver may

extended means that max_wal_size is exceeded but the files are still retained, either by the replication slot or by wal_keep_size unreserved means that the

replication slot does not exist A replication slot is a feature in PostgreSQL that ensures that the master server will retain the WAL logs that are needed by the replicas

replication slot already exists The max_replication_slots configuration parameter defines the maximum number of replication slots that can be used to manage database