我有来自汽车GPS追踪器的数据，我需要查找停车和移动时段
现在每一行在表中都有停车或移动的ID
+------------+-------+----------+---------+------------+
| time | speed | ignition | trip_id | parking_id |
+------------+-------+----------+---------+------------+
| 05:48:50 | 0 | false | 0 | 300 |
| 05:49:20 | 0 | false | 0 | 300 |
| 05:49:20 | 10 | true | 300 | 0 |
| 05:50:01 | 20 | true | 300 | 0 |
| 05:51:20 | 17 | true | 300 | 0 |
| 05:51:20 | 0 | false | 0 | 301 |
| 05:52:40 | 0 | false | 0 | 301 |
| 05:52:40 | 12 | true | 301 | 0 |
| 05:52:50 | 22 | true | 301 | 0 |
| 05:53:00 | 30 | true | 301 | 0 |
| 05:53:30 | 40 | true | 301 | 0 |
| 05:53:30 | 0 | false | 0 | 302 |
| 05:55:00 | 0 | false | 0 | 302 |
+------------+-------+----------+---------+------------+
SELECT min(time) as time_start, max(time) as time_end, trip_id, parking_id
FROM 'tablename' GROUP BY trip_id, parking_id
结果是
+------------+----------+---------+------------+
| time start | time end | trip id | parking id |
+------------+----------+---------+------------+
| 05:48:50 | 05:49:20 | 0 | 300|
| 05:49:20 | 05:51:20 | 300| 0 |
| 05:51:20 | 05:52:40 | 0 | 301|
| 05:52:40 | 05:53:30 | 301| 0 |
| 05:53:30 | 05:55:00 | 0 | 302|
+------------+----------+---------+------------+
我该如何分组，以免使用parking_id和trip_id。但是生成停车ID和旅行ID。最终结果必须是：
+------------+----------+---------+------------+
| time start | time end | trip id | parking id |
+------------+----------+---------+------------+
| 05:48:50 | 05:49:20 | 0 | 1 |
| 05:49:20 | 05:51:20 | 1 | 0 |
| 05:51:20 | 05:52:40 | 0 | 2 |
| 05:52:40 | 05:53:30 | 2 | 0 |
| 05:53:30 | 05:55:00 | 0 | 3 |
+------------+----------+---------+------------+