From e005f939fdfdd9776989e96039242356293ed68a Mon Sep 17 00:00:00 2001
From: Fabian Reinartz <fab.reinartz@gmail.com>
Date: Fri, 18 Sep 2015 16:49:32 +0200
Subject: [PATCH] Fix scalar construction in function

---
 promql/functions.go | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/promql/functions.go b/promql/functions.go
index 321918eab..a817ff1fc 100644
--- a/promql/functions.go
+++ b/promql/functions.go
@@ -247,9 +247,15 @@ func funcRound(ev *evaluator, args Expressions) model.Value {
 func funcScalar(ev *evaluator, args Expressions) model.Value {
 	v := ev.evalVector(args[0])
 	if len(v) != 1 {
-		return &model.Scalar{model.SampleValue(math.NaN()), ev.Timestamp}
+		return &model.Scalar{
+			Value:     model.SampleValue(math.NaN()),
+			Timestamp: ev.Timestamp,
+		}
+	}
+	return &model.Scalar{
+		Value:     model.SampleValue(v[0].Value),
+		Timestamp: ev.Timestamp,
 	}
-	return &model.Scalar{model.SampleValue(v[0].Value), ev.Timestamp}
 }
 
 // === count_scalar(vector model.ValVector) model.SampleValue ===