record_root_in_trans
ret = record_root_in_trans(trans, src, 1);
ret = record_root_in_trans(trans, parent, 1);
ret = record_root_in_trans(trans, parent_root, 0);
ret = record_root_in_trans(trans, root, 0);
ret = record_root_in_trans(trans, root, 0);