From 6af682579f11074fcb49765eb2e2bcf6ab003c48 Mon Sep 17 00:00:00 2001
From: Emily <emily@mongodb.com>
Date: Fri, 28 Jul 2017 12:02:58 +0200
Subject: [PATCH] MONGOID-4461 Encourage referring to MongoDB docs for
 supported map reduce options

---
 lib/mongoid/contextual/map_reduce.rb | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/mongoid/contextual/map_reduce.rb b/lib/mongoid/contextual/map_reduce.rb
index fdc9bcd4b0..111e2085d3 100644
--- a/lib/mongoid/contextual/map_reduce.rb
+++ b/lib/mongoid/contextual/map_reduce.rb
@@ -111,6 +111,7 @@ def js_mode
       end
 
       # Specifies where the map/reduce output is to be stored.
+      # Please see MongoDB documentation for supported map reduce options.
       #
       # @example Store output in memory.
       #   map_reduce.out(inline: 1)
@@ -124,6 +125,9 @@ def js_mode
       # @example Store output in a collection, reducing existing documents.
       #   map_reduce.out(reduce: "collection_name")
       #
+      # @example Return results from map reduce.
+      #   map_reduce.out(inline: 1)
+      #
       # @param [ Hash ] location The place to store the results.
       #
       # @return [ MapReduce ] The map/reduce object.