1 files changed, 8 insertions, 0 deletions
diff --git a/lib/arel/primitives/attribute.rb b/lib/arel/primitives/attribute.rb
index 39de11be26..5f8618ddfc 100644
--- a/lib/arel/primitives/attribute.rb
+++ b/lib/arel/primitives/attribute.rb
@@ -46,6 +46,14 @@ module Arel
     end
 
     module Transformations
+      def self.included(klass)
+        alias_method :eql?, :==
+      end
+      
+      def hash
+        name.hash + history.size.hash
+      end
+      
       def as(aliaz = nil)
         Attribute.new(relation, name, :alias => aliaz, :ancestor => self)
       end