From 301dfa5a3888a41ea36324a390241538249e9a53 Mon Sep 17 00:00:00 2001
From: Aaron Patterson <aaron.patterson@gmail.com>
Date: Wed, 8 Sep 2010 14:54:44 -0700
Subject: as is implemented

---
 lib/arel/nodes/sum.rb | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/lib/arel/nodes/sum.rb b/lib/arel/nodes/sum.rb
index ecd66aba7a..d81455fa5f 100644
--- a/lib/arel/nodes/sum.rb
+++ b/lib/arel/nodes/sum.rb
@@ -7,6 +7,16 @@ module Arel
         @expressions = expr
         @alias       = aliaz
       end
+
+      def as aliaz
+        self.alias = SqlLiteral.new(aliaz)
+        self
+      end
+
+      def to_sql
+        viz = Visitors::ToSql.new Table.engine
+        viz.accept self
+      end
     end
   end
 end
-- 
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