begin; create extension lostgis; select plan(1); -- count interpolation test select is( ST_AddTime( '[ { "lon": 0, "lat": 0 }, { "lon": 0, "lat": 0 }, { "lon": 0, "lat": 0 } ]' :: jsonb :: tpv [], '2016-01-01T00:00:00Z', '2016-01-01T06:00:00Z' ) :: jsonb, '[ { "ts": 1451606400000, "lat": 0, "lon": 0 }, { "ts": 1451617200000, "lat": 0, "lon": 0 }, { "ts": 1451628000000, "lat": 0, "lon": 0 } ]' :: jsonb); rollback;