From 23294241b10d162c3eb90353bfec5735711a7eab Mon Sep 17 00:00:00 2001
From: Aaron Patterson <aaron.patterson@gmail.com>
Date: Fri, 30 Jul 2010 15:15:03 -0700
Subject: PERF: reducing call stack

---
 lib/arel/algebra/relations/utilities/compound.rb     |  8 ++++++++
 lib/arel/engines/sql/relations.rb                    |  1 -
 lib/arel/engines/sql/relations/utilities/compound.rb | 10 ----------
 3 files changed, 8 insertions(+), 11 deletions(-)
 delete mode 100644 lib/arel/engines/sql/relations/utilities/compound.rb

diff --git a/lib/arel/algebra/relations/utilities/compound.rb b/lib/arel/algebra/relations/utilities/compound.rb
index 80ac0b1351..8a8f3ab609 100644
--- a/lib/arel/algebra/relations/utilities/compound.rb
+++ b/lib/arel/algebra/relations/utilities/compound.rb
@@ -18,6 +18,14 @@ module Arel
       @projections = nil
     end
 
+    def table
+      @relation.table
+    end
+
+    def table_sql(formatter = Sql::TableReference.new(self))
+      @relation.table_sql formatter
+    end
+
     [:wheres, :groupings, :orders, :havings, :projections].each do |operation_name|
       class_eval <<-OPERATION, __FILE__, __LINE__
         def #{operation_name}
diff --git a/lib/arel/engines/sql/relations.rb b/lib/arel/engines/sql/relations.rb
index c692683421..d1711d058f 100644
--- a/lib/arel/engines/sql/relations.rb
+++ b/lib/arel/engines/sql/relations.rb
@@ -1,4 +1,3 @@
-require 'arel/engines/sql/relations/utilities/compound'
 require 'arel/engines/sql/relations/utilities/nil'
 require 'arel/engines/sql/relations/compiler'
 require 'arel/engines/sql/relations/table'
diff --git a/lib/arel/engines/sql/relations/utilities/compound.rb b/lib/arel/engines/sql/relations/utilities/compound.rb
deleted file mode 100644
index 55853be742..0000000000
--- a/lib/arel/engines/sql/relations/utilities/compound.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-module Arel
-  class Compound
-    delegate :table, :table_sql, :to => :relation
-
-    def build_query(*parts)
-      parts.compact.join(" ")
-    end
-  end
-end
-
-- 
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