2 files changed, 6 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/association_relation.rb b/activerecord/lib/active_record/association_relation.rb
index ef9650d482..45f1b07f69 100644
--- a/activerecord/lib/active_record/association_relation.rb
+++ b/activerecord/lib/active_record/association_relation.rb
@@ -17,6 +17,10 @@ module ActiveRecord
       @association.empty?
     end
 
+    def ==(other)
+      other == to_a
+    end
+
     private
 
     def exec_queries
diff --git a/activerecord/lib/active_record/relation.rb b/activerecord/lib/active_record/relation.rb
index d1764a2bb2..709edbee88 100644
--- a/activerecord/lib/active_record/relation.rb
+++ b/activerecord/lib/active_record/relation.rb
@@ -569,6 +569,8 @@ module ActiveRecord
     # Compares two relations for equality.
     def ==(other)
       case other
+      when Associations::CollectionProxy, AssociationRelation
+        self == other.to_a
       when Relation
         other.to_sql == to_sql
       when Array