From 58629d6b95818b7e9e9fa377a4a2729a9f9b9eef Mon Sep 17 00:00:00 2001
From: Aaron Patterson <aaron.patterson@gmail.com>
Date: Mon, 26 Jul 2010 13:42:49 -0700
Subject: removing unused code

---
 lib/arel/algebra/relations/utilities/compound.rb | 16 +---------------
 1 file changed, 1 insertion(+), 15 deletions(-)

(limited to 'lib')

diff --git a/lib/arel/algebra/relations/utilities/compound.rb b/lib/arel/algebra/relations/utilities/compound.rb
index 34f80b9e56..7edbff3a31 100644
--- a/lib/arel/algebra/relations/utilities/compound.rb
+++ b/lib/arel/algebra/relations/utilities/compound.rb
@@ -7,12 +7,6 @@ module Arel
              :column_for, :sources, :locked, :table_alias,
              :to => :relation
 
-    def self.requires(feature = nil)
-      @requires ||= nil
-      @requires = feature if feature
-      @requires
-    end
-
     def initialize relation
       @relation = relation
     end
@@ -38,15 +32,7 @@ module Arel
     end
 
     def engine
-      requires = self.class.requires
-      engine   = relation.engine
-
-      # Temporary check of whether or not the engine supports where.
-      if requires && engine.respond_to?(:supports) && !engine.supports(requires)
-        Memory::Engine.new
-      else
-        engine
-      end
+      relation.engine
     end
 
   private
-- 
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