Method last_leaf_for_name_resolution

sql/table.cc:930–961

*/

TABLE_LIST *TABLE_LIST::last_leaf_for_name_resolution()
{
  TABLE_LIST *cur_table_ref= this;
  NESTED_JOIN *cur_nested_join;

  if (is_leaf_for_name_resolution())
    return this;
  DBUG_ASSERT(nested_join);

  for (cur_nested_join= nested_join;
       cur_nested_join;
       cur_nested_join= cur_table_ref->nested_join)
  {
    cur_table_ref= cur_nested_join->join_list.head();
    /*
      If the current nested is a RIGHT JOIN, the operands in
      'join_list' are in reverse order, thus the last operand is in the
      end of the list.
    */
    if ((cur_table_ref->outer_join & JOIN_TYPE_RIGHT))
    {
      List_iterator_fast<TABLE_LIST> it(cur_nested_join->join_list);
      TABLE_LIST *next;
      cur_table_ref= it++;
      while ((next= it++))
        cur_table_ref= next;
    }
    if (cur_table_ref->is_leaf_for_name_resolution())
      break;
  }
  return cur_table_ref;
}


/*