我的透视查询生成:
+-----------+----+----+---+---+---+---+---+
| client_id | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
+-----------+----+----+---+---+---+---+---+
| 216436 | 9 | 0 | 0 | 0 | 0 | 0 | 0 |
| 110522 | 76 | 3 | 0 | 0 | 0 | 0 | 0 |
| 214981 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
| 216360 | 52 | 1 | 0 | …