REPLICATION_STAT

REPLICATION_STAT describes information about log synchronization status, such as the locations where the sender sends logs and where the receiver receives logs, as described in Table 1.

**Table 1** REPLICATION_STAT columns
Name	Type	Description
pid	bigint	PID of the thread.
usesysid	oid	User system ID.
usename	name	Username.
application_name	text	Program name.
client_addr	inet	Client address.
client_hostname	text	Client name.
client_port	integer	Port of the client.
backend_start	timestamp with time zone	Start time of the program.
state	text	Log replication state: Catch-up state. Consistent streaming state.
sender_sent_location	text	Location where the sender sends logs.
receiver_write_location	text	Location where the receiver writes logs.
receiver_flush_location	text	Location where the receiver flushes logs.
receiver_replay_location	text	Location where the receiver replays logs.
sync_priority	integer	Priority of synchronous duplication. (0 indicates asynchronization.)
sync_state	text	Synchronization state: Asynchronous replication. Synchronous replication. Potential synchronization.