1 files changed, 0 insertions, 35 deletions
diff --git a/lib/arel/primitives/expression.rb b/lib/arel/primitives/expression.rb
deleted file mode 100644
index 836f014745..0000000000
--- a/lib/arel/primitives/expression.rb
+++ /dev/null
@@ -1,35 +0,0 @@
-module Arel
-  class Expression < Attribute
-    attributes :attribute, :function_sql, :alias, :ancestor
-    deriving :==
-    delegate :relation, :to => :attribute
-    alias_method :name, :alias
-
-    def initialize(attribute, function_sql, aliaz = nil, ancestor = nil)
-      @attribute, @function_sql, @alias, @ancestor = attribute, function_sql, aliaz, ancestor
-    end
-
-    def to_sql(formatter = Sql::SelectClause.new(relation))
-      formatter.expression self
-    end
-
-    def aggregation?
-      true
-    end
-
-    module Transformations
-      def as(aliaz)
-        Expression.new(attribute, function_sql, aliaz, self)
-      end
-
-      def bind(new_relation)
-        new_relation == relation ? self : Expression.new(attribute.bind(new_relation), function_sql, @alias, self)
-      end
-
-      def to_attribute
-        Attribute.new(relation, @alias, :ancestor => self)
-      end
-    end
-    include Transformations
-  end
-end