From 3107c633e3cc4f5d5bd4f060242d4eff87b07dcd Mon Sep 17 00:00:00 2001
From: Aliaksandr Valialkin <valyala@gmail.com>
Date: Fri, 24 Jul 2020 02:14:48 +0300
Subject: [PATCH] app/vmselect/promql: typo fix after
 3e557c9861ea3f7ead0b60392f3ee521e5f16278

---
 app/vmselect/promql/rollup.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/vmselect/promql/rollup.go b/app/vmselect/promql/rollup.go
index f6973a70fc..a6c3e8ebe8 100644
--- a/app/vmselect/promql/rollup.go
+++ b/app/vmselect/promql/rollup.go
@@ -1096,7 +1096,7 @@ func rollupRateOverSum(rfa *rollupFuncArg) float64 {
 		if len(values) == 0 {
 			return nan
 		}
-		prevTimestamp = timestamps[1]
+		prevTimestamp = timestamps[0]
 		values = values[1:]
 		timestamps = timestamps[1:]
 	}