Function test_if_use_dynamic_range_scan

sql/sql_select.cc:25700–25716

*/

static
int test_if_use_dynamic_range_scan(JOIN_TAB *join_tab)
{
  if (unlikely(join_tab->use_quick == 2))
  {
    quick_select_return res= test_if_quick_select(join_tab);
    if (res == SQL_SELECT::ERROR)
      return -1;
    else
    {
      /* Both OK and IMPOSSIBLE_RANGE go here */
      return join_tab->select->quick ? 1 : 0;
    }
  }
  else
    return 0;
}


int join_init_read_record(JOIN_TAB *tab)