Fix for a bug which caused problems in CREATE from SELECT with

  const char *func_name() const { return "month"; }

  enum Item_result result_type () const { return INT_RESULT; }

  void fix_length_and_dec() { decimals=0; max_length=2; maybe_null=1; }

  Field *tmp_table_field(TABLE *t_arg)

  {

    if (!t_arg) return result_field;

    return (Field *) new Field_string(max_length,maybe_null, name,t_arg, binary);

  }  

};

class Item_func_monthname :public Item_func_month