MySQLでindexの情報を確認する

mysql> SHOW INDEX FROM eip_t_timeline;
+----------------+------------+-----------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+
| Table          | Non_unique | Key_name  | Seq_in_index | Column_name | Collation | Cardinality | Sub_part | Packed | Null | Index_type | Comment | Index_comment |
+----------------+------------+-----------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+
| eip_t_timeline |          0 | PRIMARY   |            1 | timeline_id | A         |       24624 |     NULL | NULL   |      | BTREE      |         |               |
| eip_t_timeline |          1 | owner_id  |            1 | owner_id    | A         |         307 |     NULL | NULL   | YES  | BTREE      |         |               |
| eip_t_timeline |          1 | parent_id |            1 | parent_id   | A         |        6156 |     NULL | NULL   |      | BTREE      |         |               |
+----------------+------------+-----------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+
3 rows in set (0.02 sec)