From c4a23585510dd1a20766c36158bee9a23001fdc7 Mon Sep 17 00:00:00 2001
From: Julius Volz <julius.volz@gmail.com>
Date: Fri, 11 Jan 2013 01:08:47 +0100
Subject: [PATCH] Set correct interval in MatrixLiteral.Eval().

---
 rules/ast/ast.go | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/rules/ast/ast.go b/rules/ast/ast.go
index 3da40c15c..2e52aa404 100644
--- a/rules/ast/ast.go
+++ b/rules/ast/ast.go
@@ -458,7 +458,11 @@ func (node *VectorArithExpr) Eval(timestamp *time.Time) Vector {
 }
 
 func (node *MatrixLiteral) Eval(timestamp *time.Time) Matrix {
-	values, err := persistence.GetRangeValues(node.labels, &model.Interval{}, &stalenessPolicy)
+	interval := &model.Interval{
+		OldestInclusive: timestamp.Add(-node.interval),
+		NewestInclusive: *timestamp,
+	}
+	values, err := persistence.GetRangeValues(node.labels, interval, &stalenessPolicy)
 	if err != nil {
 		log.Printf("Unable to get values for vector interval")
 		return Matrix{}