From ff8d677e02e576e0e5b28ac9fb6343c965948eba Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ji=C5=99=C3=AD=20=C4=8Ctvrtka?= <j.ctvrtka@gmail.com>
Date: Wed, 21 Sep 2022 16:12:43 +0200
Subject: [PATCH] PMM-9875 Add version check.

---
 agent/agents/postgres/pgstatmonitor/pgstatmonitor.go | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/agent/agents/postgres/pgstatmonitor/pgstatmonitor.go b/agent/agents/postgres/pgstatmonitor/pgstatmonitor.go
index 69365ec039..4ef900429a 100644
--- a/agent/agents/postgres/pgstatmonitor/pgstatmonitor.go
+++ b/agent/agents/postgres/pgstatmonitor/pgstatmonitor.go
@@ -437,6 +437,16 @@ func (m *PGStatMonitorQAN) getNewBuckets(ctx context.Context, periodLengthSecs u
 }
 
 func (m *PGStatMonitorQAN) checkErrorsView(ctx context.Context) error {
+	vPGSM, _, err := getPGMonitorVersion(m.q)
+	if err != nil {
+		return errors.Wrap(err, "failed to get row and view for pg_stat_monitor version")
+	}
+
+	// Errors view is supported in PGSM 2.0 and higher.
+	if vPGSM < pgStatMonitorVersion20PG12 {
+		return nil
+	}
+
 	row := &pgStatMonitorErrors{}
 	rows, err := m.q.SelectRows(pgStatMonitorErrorsView, "")
 	if err != nil {