ST_startTime
更新时间：
复制 MD 格式
Returns the start time of a trajectory object as a timestamp.
Syntax
timestamp ST_startTime(trajectory traj);Parameters
| Parameter | Type | Description |
|---|---|---|
traj | trajectory | The trajectory object. |
Example
Retrieve the start time from all rows in traj_table:
SELECT ST_startTime(traj) FROM traj_table;该文章对您有帮助吗？