Split Item_func_between::fix_length_and_dec

  if (m_comparator.cmp_type() == STRING_RESULT &&

      agg_arg_charsets_for_comparison(cmp_collation, args, 3))

   return;

  /* See the comment about the similar block in Item_bool_func2 */

  if (args[0]->real_item()->type() == FIELD_ITEM &&

      !thd->lex->is_ps_or_view_context_analysis())

  {

    Item_field *field_item= (Item_field*) (args[0]->real_item());

    if (field_item->field_type() ==  MYSQL_TYPE_LONGLONG ||

        field_item->field_type() ==  MYSQL_TYPE_YEAR)

    {

      const bool cvt_arg1= convert_const_to_int(thd, field_item, &args[1]);

      const bool cvt_arg2= convert_const_to_int(thd, field_item, &args[2]);

      if (cvt_arg1 && cvt_arg2)

      {

        // Works for all types

        m_comparator.set_handler(&type_handler_longlong);

      }

    }

  }