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authorAlvaro Herrera2016-01-07 19:21:19 +0000
committerAlvaro Herrera2016-01-07 19:21:19 +0000
commitb1a9bad9e744857291c7d5516080527da8219854 (patch)
treec93c41509990055a20dc91775dadba3c1e6c995a /src/include/replication
parent6b1a837f69d00d265bee4b57ba2d320f1463f131 (diff)
pgstat: add WAL receiver status view & SRF
This new view provides insight into the state of a running WAL receiver in a HOT standby node. The information returned includes the PID of the WAL receiver process, its status (stopped, starting, streaming, etc), start LSN and TLI, last received LSN and TLI, timestamp of last message send and receipt, latest end-of-WAL LSN and time, and the name of the slot (if any). Access to the detailed data is only granted to superusers; others only get the PID. Author: Michael Paquier Reviewer: Haribabu Kommi
Diffstat (limited to 'src/include/replication')
-rw-r--r--src/include/replication/walreceiver.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/include/replication/walreceiver.h b/src/include/replication/walreceiver.h
index db40d9d7603..6eacb095d1b 100644
--- a/src/include/replication/walreceiver.h
+++ b/src/include/replication/walreceiver.h
@@ -14,6 +14,7 @@
#include "access/xlog.h"
#include "access/xlogdefs.h"
+#include "fmgr.h"
#include "storage/latch.h"
#include "storage/spin.h"
#include "pgtime.h"
@@ -148,6 +149,7 @@ extern PGDLLIMPORT walrcv_disconnect_type walrcv_disconnect;
/* prototypes for functions in walreceiver.c */
extern void WalReceiverMain(void) pg_attribute_noreturn();
+extern Datum pg_stat_get_wal_receiver(PG_FUNCTION_ARGS);
/* prototypes for functions in walreceiverfuncs.c */
extern Size WalRcvShmemSize(void);