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 49.
  
Table 51.80. pg_replication_origin_status Columns
| Name | Type | References | Description | 
|---|---|---|---|
| local_id | Oid |  | internal node identifier | 
| external_id | text |  | external node identifier | 
| remote_lsn | pg_lsn | The origin node's LSN up to which data has been replicated. | |
| local_lsn | pg_lsn | This node's LSN at which remote_lsnhas
       been replicated. Used to flush commit records before persisting
       data to disk when using asynchronous commits. |