From b5d86168d02705239068c1dbdb837896499aab69 Mon Sep 17 00:00:00 2001
From: Florian Derler <f.derler@conova.com>
Date: Tue, 12 Mar 2024 21:36:49 +0100
Subject: [PATCH] correctly escape __name__

---
 prometheus/querier.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/prometheus/querier.go b/prometheus/querier.go
index 6a25ea70..981ea548 100644
--- a/prometheus/querier.go
+++ b/prometheus/querier.go
@@ -36,7 +36,7 @@ func (q *Querier) Close() error {
 func (q *Querier) LabelValues(label string, matchers ...*labels.Matcher) ([]string, storage.Warnings, error) {
 	terms := []finder.TaggedTerm{
 		{
-			Key:         label,
+			Key:         strings.ReplaceAll(label, `_`, `\_`),
 			Op:          finder.TaggedTermEq,
 			Value:       "*",
 			HasWildcard: true,