mssql scaler: handle zero row query results (#1637)

Signed-off-by: Chris Gillum <cgillum@microsoft.com>
kedacore · Mar 1, 2021 · 9a55f9e · 9a55f9e
1 parent c64b797
commit 9a55f9e
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/pkg/scalers/mssql_scaler.go b/pkg/scalers/mssql_scaler.go
@@ -253,7 +253,10 @@ func (s *mssqlScaler) GetMetrics(ctx context.Context, metricName string, metricS
 func (s *mssqlScaler) getQueryResult() (int, error) {
 	var value int
 	err := s.connection.QueryRow(s.metadata.query).Scan(&value)
-	if err != nil {
+	switch {
+	case err == sql.ErrNoRows:
+		value = 0
+	case err != nil:
 		mssqlLog.Error(err, fmt.Sprintf("Could not query mssql database: %s", err))
 		return 0, err
 	}