From 1bf7f2435f3c7cc4a0860a5752865d52ed389181 Mon Sep 17 00:00:00 2001
From: Heikki Hulkko <heikki.hulkko@reaktor.fi>
Date: Mon, 21 Nov 2016 14:02:43 +0200
Subject: [PATCH] Add confirmed_flush_lsn to pg_stat_replication

---
 postgres_exporter.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/postgres_exporter.go b/postgres_exporter.go
index a98227c0..e7970332 100644
--- a/postgres_exporter.go
+++ b/postgres_exporter.go
@@ -239,6 +239,7 @@ var metricMaps = map[string]map[string]ColumnMapping{
 		"restart_lsn":              {DISCARD, "The address (LSN) of oldest WAL which still might be required by the consumer of this slot and thus won't be automatically removed during checkpoints", nil, nil},
 		"pg_current_xlog_location": {DISCARD, "pg_current_xlog_location", nil, nil},
 		"pg_xlog_location_diff":    {GAUGE, "Lag in bytes between master and slave", nil, semver.MustParseRange(">=9.2.0")},
+		"confirmed_flush_lsn":      {DISCARD, "LSN position a consumer of a slot has confirmed flushing the data received", nil, nil},
 	},
 	"pg_stat_activity": {
 		"datname":         {LABEL, "Name of this database", nil, nil},