pg_subscription_relThe catalog pg_subscription_rel contains the state for each replicated relation in each subscription. This is a many-to-many mapping.
This catalog only contains tables known to the subscription after running either CREATE SUBSCRIPTION or ALTER SUBSCRIPTION ... REFRESH PUBLICATION.
Table 52.53. pg_subscription_rel Columns
| Name | Type | References | Description | 
|---|---|---|---|
srsubid | 
            oid | 
             | 
            Reference to subscription | 
srrelid | 
            oid | 
             | 
            Reference to relation | 
srsubstate | 
            char | 
            State code: i = initialize, d = data is being copied, s = synchronized, r = ready (normal replication) | 
          |
srsublsn | 
            pg_lsn | 
            Remote LSN of the state change used for synchronization coordination when in s or r states, otherwise null |