From a0c1b21c0c68e9621b144b35bfe7e8b05914d243 Mon Sep 17 00:00:00 2001
From: Fengyang Wang <fengyang.wang.0@gmail.com>
Date: Tue, 12 Sep 2017 16:55:03 -0400
Subject: [PATCH] Update sumindex.jl (#115)

https://github.com/JuliaLang/julia/pull/22825 will change the behavior of `mapreduce` to never promote, so to retain the previous behavior it must be changed to `sum`.
---
 src/array/sumindex.jl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/array/sumindex.jl b/src/array/sumindex.jl
index 961f68cb..aef7ca86 100644
--- a/src/array/sumindex.jl
+++ b/src/array/sumindex.jl
@@ -193,7 +193,7 @@ end
 
 function setup_mapr_access(A)
     z = zero(eltype(A))
-    zz = mapreduce(z -> z*z, +, [z]) # z = z*z, with any promotion from mapreduce
+    zz = sum(z -> z * z, [z]) # z = z*z, with any promotion from sum
     n = minimum(size(A))
     B = Vector{typeof(zz)}(n)
     B, zz, n