# File sql-list.rb, line 113
  def max
    sql = "SELECT MAX(" + @dummy.instance_eval("sql_quote_name('" + @symbol + "')") + ") AS m FROM " 
    sql << @dummy.instance_eval("sql_quote_name('" + @classname + "')")
    @dbi.select_all (sql) { |row|
      obj_id = row["m"].dup
      obj_id.untaint
      return self[obj_id]
    }
    return nil
  end