From 4e3b99dad53a25dd369bef9b19ae1cb794ab3e73 Mon Sep 17 00:00:00 2001
From: Aaron Patterson <aaron.patterson@gmail.com>
Date: Thu, 29 Jul 2010 14:26:07 -0700
Subject: initialize our instance variables

---
 lib/arel/algebra/relations/utilities/compound.rb | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

(limited to 'lib')

diff --git a/lib/arel/algebra/relations/utilities/compound.rb b/lib/arel/algebra/relations/utilities/compound.rb
index 451097b551..25f634ef78 100644
--- a/lib/arel/algebra/relations/utilities/compound.rb
+++ b/lib/arel/algebra/relations/utilities/compound.rb
@@ -8,8 +8,13 @@ module Arel
              :to => :relation
 
     def initialize relation
-      @relation = relation
-      @attributes = nil
+      @relation    = relation
+      @attributes  = nil
+      @wheres      = nil
+      @groupings   = nil
+      @orders      = nil
+      @havings     = nil
+      @projections = nil
     end
 
     [:wheres, :groupings, :orders, :havings, :projections].each do |operation_name|
-- 
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