From b10f93dc37047a05e4d4df0538914c4465fae0d6 Mon Sep 17 00:00:00 2001 From: Alexander Zobnin Date: Tue, 12 Jul 2022 09:25:28 +0300 Subject: [PATCH] fix AggregateByRange() on empty data --- pkg/timeseries/timeseries.go | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/pkg/timeseries/timeseries.go b/pkg/timeseries/timeseries.go index bd46ce0..bb8cd6d 100644 --- a/pkg/timeseries/timeseries.go +++ b/pkg/timeseries/timeseries.go @@ -176,9 +176,11 @@ func AggregateByRange(series []*TimeSeriesData, aggFunc AggFunc) *TimeSeriesData value := aggFunc(aggregatedSeries) aggregatedSeriesData := NewTimeSeriesData() - aggregatedSeriesData.TS = []TimePoint{ - {Time: aggregatedSeries[0].Time, Value: value}, - {Time: aggregatedSeries[aggregatedSeries.Len()-1].Time, Value: value}, + if len(aggregatedSeries) > 0 { + aggregatedSeriesData.TS = []TimePoint{ + {Time: aggregatedSeries[0].Time, Value: value}, + {Time: aggregatedSeries[aggregatedSeries.Len()-1].Time, Value: value}, + } } return aggregatedSeriesData