1 files changed, 11 insertions, 0 deletions
diff --git a/lib/arel/algebra/relations/utilities/externalization.rb b/lib/arel/algebra/relations/utilities/externalization.rb
index 815e1e0aa7..8e97573f68 100644
--- a/lib/arel/algebra/relations/utilities/externalization.rb
+++ b/lib/arel/algebra/relations/utilities/externalization.rb
@@ -1,5 +1,7 @@
 module Arel
   class Externalization < Compound
+    include Recursion::BaseCase
+
     def == other
       super || Externalization === other && relation == other.relation
     end
@@ -11,5 +13,14 @@ module Arel
     def attributes
       @attributes ||= Header.new(relation.attributes.map { |a| a.to_attribute(self) })
     end
+
+    def table_sql(formatter = Sql::TableReference.new(relation))
+      formatter.select relation.compiler.select_sql, self
+    end
+
+    # REMOVEME
+    def name
+      relation.name + '_external'
+    end
   end
 end