most in memory operations save join and group

Conflicts:

	lib/arel/algebra/extensions/object.rb
	lib/arel/algebra/primitives/value.rb
	lib/arel/engines/memory/relations.rb
	lib/arel/engines/sql/formatters.rb
	lib/arel/engines/sql/primitives.rb
	spec/arel/unit/relations/alias_spec.rb
	spec/arel/unit/relations/array_spec.rb
	spec/arel/unit/relations/order_spec.rb

1 files changed, 3 insertions, 3 deletions

diff --git a/lib/arel/engines/sql/formatters.rb b/lib/arel/engines/sql/formatters.rb
index f82ddf631f..bc5f0f7c64 100644
--- a/lib/arel/engines/sql/formatters.rb
+++ b/lib/arel/engines/sql/formatters.rb
@@ -47,9 +47,9 @@ module Arel
     class WhereClause < PassThrough
     end
 
-    class OrderClause < PassThrough
-      def attribute(attribute)
-        "#{quote_table_name(name_for(attribute.original_relation))}.#{quote_column_name(attribute.name)}"
+    class OrderClause < PassThrough      
+      def ordering(ordering)
+        "#{quote_table_name(name_for(ordering.attribute.original_relation))}.#{quote_column_name(ordering.attribute.name)} #{ordering.direction_sql}"
       end
     end