pg_replication_origin_status #
   The pg_replication_origin_status view
   contains information about how far replay for a certain origin has
   progressed.  For more on replication origins
   see Chapter 48.
  
Table 52.18. pg_replication_origin_status Columns
| Column Type Description | 
|---|
| 
        internal node identifier | 
| 
        external node identifier | 
| 
        The origin node's LSN up to which data has been replicated. | 
| 
        
       This node's LSN at which  |