Return the values

getValues(tjsonb) → jsonbset

SELECT getValues(tjsonb
  '[{"vehicleId": 1, "location": "Point(1 1)"}@2001-01-01,
    {"vehicleId": 1, "location": "Point(1 1)"}@2001-01-02]');
-- {{"location": "Point(1 1)", "vehicleId": 1}}

Return the value at a timestamp

valueAtTimestamp(tjsonb,timestamptz) → jsonb

SELECT valueAtTimestamp(tjsonb
  '[{"vehicleId": 1, "location": "Point(1 1)"}@2001-01-01,
    {"vehicleId": 1, "location": "Point(2 2)"}@2001-01-02]', '2001-01-02');
-- {"location": "Point(2 2)", "vehicleId": 1}