ST_intersects
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Returns true if a trajectory object and a geometry object have at least one point in common within the specified time range.
Syntax
boolean ST_intersects(trajectory traj, tsrange range, geometry g);
boolean ST_intersects(trajectory traj, timestamp t1, timestamp t2, geometry g);Use the first overload to pass a tsrange value directly. Use the second overload when you have separate start and end timestamps.
Parameters
| Parameter | Description |
|---|---|
traj | The trajectory object. |
range | The time range, expressed as a tsrange value. |
t1 | The start time, expressed as a timestamp value. |
t2 | The end time, expressed as a timestamp value. |
g | The geometry object to test intersection against. |
Returns
boolean — true if the trajectory intersects the geometry within the time range.
Example
Check whether trajectories in traj_table intersect a LINESTRING geometry between 13:00 and 14:00 on January 1, 2010:
SELECT ST_intersects(traj, '2010-1-1 13:00:00', '2010-1-1 14:00:00', 'LINESTRING(0 0, 5 5, 9 9)'::geometry)
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