From 115deecff1fe9ef756bb407bad05695e28bd7b48 Mon Sep 17 00:00:00 2001
From: Fine0830 <fanxue0830@gmail.com>
Date: Sat, 15 Jul 2023 23:45:09 +0800
Subject: [PATCH] fix: set chart label (#300)

---
 src/hooks/useExpressionsProcessor.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/hooks/useExpressionsProcessor.ts b/src/hooks/useExpressionsProcessor.ts
index d3ee7ee7..6855696f 100644
--- a/src/hooks/useExpressionsProcessor.ts
+++ b/src/hooks/useExpressionsProcessor.ts
@@ -113,7 +113,8 @@ export async function useExpressionsQueryProcessor(config: Indexable) {
       if (!obj.error) {
         if (type === ExpressionResultType.TIME_SERIES_VALUES) {
           if (results.length === 1) {
-            source[c.label || name] = results[0].values.map((d: { value: unknown }) => d.value) || [];
+            const label = results[0].metric && results[0].metric.labels[0] && results[0].metric.labels[0].value;
+            source[c.label || label || name] = results[0].values.map((d: { value: unknown }) => d.value) || [];
           } else {
             const labels = (c.label || "").split(",").map((item: string) => item.replace(/^\s*|\s*$/g, ""));
             for (const item of results) {