検索間違ってた。2件出てきた。

mysql> SELECT * FROM t_trip WHERE trip IN ('Unko5yiqcc','kusoic9fOc','sine8bplR6');
+---------+------------+----------+----------------+
| KEYSTR | TRIP | CALC_CNT | UPDATE_DT |
+---------+------------+----------+----------------+
| 8370172 | kusoic9fOc | 0 | 20050830062258 |
| 9907402 | sine8bplR6 | 0 | 20050909044318 |
+---------+------------+----------+----------------+
2 rows in set (0.09 sec)

mysql>