From 6e0826a9866a348ef956fabd068e4e99f4e0644b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?G=C3=A1bor=20Farkas?= <gabor.farkas@gmail.com>
Date: Thu, 7 Apr 2022 09:44:04 +0200
Subject: [PATCH] loki: do not convert NaN to null (#45389)

---
 public/app/plugins/datasource/loki/result_transformer.test.ts | 2 +-
 public/app/plugins/datasource/loki/result_transformer.ts      | 4 ----
 2 files changed, 1 insertion(+), 5 deletions(-)

diff --git a/public/app/plugins/datasource/loki/result_transformer.test.ts b/public/app/plugins/datasource/loki/result_transformer.test.ts
index f0e64b5e8ef..396386e6419 100644
--- a/public/app/plugins/datasource/loki/result_transformer.test.ts
+++ b/public/app/plugins/datasource/loki/result_transformer.test.ts
@@ -306,7 +306,7 @@ describe('enhanceDataFrame', () => {
         [1, 1000],
         [0, 2000],
         [1, 4000],
-        [null, 7000],
+        [NaN, 7000],
         [Infinity, 8000],
         [-Infinity, 9000],
       ]);
diff --git a/public/app/plugins/datasource/loki/result_transformer.ts b/public/app/plugins/datasource/loki/result_transformer.ts
index 34aa2e5900b..79fde9b62b2 100644
--- a/public/app/plugins/datasource/loki/result_transformer.ts
+++ b/public/app/plugins/datasource/loki/result_transformer.ts
@@ -209,10 +209,6 @@ export function lokiPointsToTimeseriesPoints(data: Array<[number, string]>): Tim
   for (const [time, value] of data) {
     let datapointValue: TimeSeriesValue = parsePrometheusFormatSampleValue(value);
 
-    if (isNaN(datapointValue)) {
-      datapointValue = null;
-    }
-
     const timestamp = time * 1000;
 
     datapoints.push([datapointValue, timestamp]);