diff --git a/planner/core/plan_cache_utils_test.go b/planner/core/plan_cache_utils_test.go
index f1332408fc2ad..7e078ffab5480 100644
--- a/planner/core/plan_cache_utils_test.go
+++ b/planner/core/plan_cache_utils_test.go
@@ -49,5 +49,5 @@ func TestCacheKey(t *testing.T) {
 	if err != nil {
 		t.Fail()
 	}
-	require.Equal(t, []byte{0x74, 0x65, 0x73, 0x74, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x73, 0x65, 0x6c, 0x65, 0x63, 0x74, 0x20, 0x31, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x74, 0x69, 0x64, 0x62, 0x74, 0x69, 0x6b, 0x76, 0x74, 0x69, 0x66, 0x6c, 0x61, 0x73, 0x68, 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x66, 0x61, 0x6c, 0x73, 0x65, 0x66, 0x61, 0x6c, 0x73, 0x65, 0x66, 0x61, 0x6c, 0x73, 0x65, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, key.Hash())
+	require.Equal(t, []byte{0x73, 0x65, 0x6c, 0x65, 0x63, 0x74, 0x20, 0x31, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x73, 0x65, 0x6c, 0x65, 0x63, 0x74, 0x20, 0x31, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x74, 0x69, 0x64, 0x62, 0x74, 0x69, 0x6b, 0x76, 0x74, 0x69, 0x66, 0x6c, 0x61, 0x73, 0x68, 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x66, 0x61, 0x6c, 0x73, 0x65, 0x66, 0x61, 0x6c, 0x73, 0x65, 0x66, 0x61, 0x6c, 0x73, 0x65, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, key.Hash())
 }