From 6488ccd11396e414435c89b9508a8b125c73338d Mon Sep 17 00:00:00 2001
From: Mitsuhiro Tanda <mitsuhiro.tanda@gmail.com>
Date: Sun, 12 Nov 2017 00:48:54 +0900
Subject: [PATCH] return empty array for no datapoints

---
 pkg/tsdb/cloudwatch/cloudwatch.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/pkg/tsdb/cloudwatch/cloudwatch.go b/pkg/tsdb/cloudwatch/cloudwatch.go
index db018978a17..3a3e6801652 100644
--- a/pkg/tsdb/cloudwatch/cloudwatch.go
+++ b/pkg/tsdb/cloudwatch/cloudwatch.go
@@ -315,7 +315,8 @@ func parseResponse(resp *cloudwatch.GetMetricStatisticsOutput, query *CloudWatch
 	var value float64
 	for _, s := range append(query.Statistics, query.ExtendedStatistics...) {
 		series := tsdb.TimeSeries{
-			Tags: map[string]string{},
+			Tags:   map[string]string{},
+			Points: make([]tsdb.TimePoint, 0),
 		}
 		for _, d := range query.Dimensions {
 			series.Tags[*d.Name] = *d.Value