123456789	2008-05-20	11:43:12.5	firstline
123456	2008-05-21	15:18:23	left blank-padded
1234567890	2008-05-22	08:23:15.6	another line
234560987	2014-09-29	14:37:15	\N
234567890	2014-09-29	14:37:15.2	\N