1Distance Long/Lat metric (great circle) - two 3D points 2:memory: #use in-memory database 3SELECT ST_Distance(MakePointZ(11.1, 42.1, 0.1), MakePointZ(11.2, 42.2, 0.2), 0); 41 # rows (not including the header row) 51 # columns 6ST_Distance(MakePointZ(11.1, 42.1, 0.1), MakePointZ(11.2, 42.2, 0.2), 0) 713842.154368:6 8 9