1 files changed, 0 insertions, 56 deletions
diff --git a/lib/arel/algebra/expression.rb b/lib/arel/algebra/expression.rb
deleted file mode 100644
index 32cf4f12c9..0000000000
--- a/lib/arel/algebra/expression.rb
+++ /dev/null
@@ -1,56 +0,0 @@
-module Arel
-  class Expression < Attribute
-    attr_reader :attribute
-    alias :name :alias
-
-    def initialize(attribute, aliaz = nil, ancestor = nil)
-      super(attribute.relation, aliaz, :alias => aliaz, :ancestor => ancestor)
-      @attribute = attribute
-    end
-
-    def aggregation?
-      true
-    end
-
-    def to_sql(formatter = Sql::SelectClause.new(relation))
-      formatter.expression self
-    end
-
-    def as(aliaz)
-      self.class.new(attribute, aliaz, self)
-    end
-
-    def bind(new_relation)
-      new_relation == relation ? self : self.class.new(attribute.bind(new_relation), @alias, self)
-    end
-
-    def to_attribute(relation)
-      Attribute.new(relation, @alias, :ancestor => self)
-    end
-  end
-
-  class Count < Expression
-    def function_sql; 'COUNT' end
-  end
-
-  class Distinct < Expression
-    def function_sql; 'DISTINCT' end
-  end
-
-  class Sum < Expression
-    def function_sql; 'SUM' end
-  end
-
-  class Maximum < Expression
-    def function_sql; 'MAX' end
-  end
-
-  class Minimum < Expression
-    def function_sql; 'MIN' end
-  end
-
-  class Average < Expression
-    def function_sql; 'AVG' end
-  end
-end
-