Eu tenho um arquivo (test.csv) contendo as seguintes linhas:
2016-08-23 00:00:00,270113184103681474
2016-08-23 00:00:00,270113184101689340
2016-08-23 00:00:00,270113184103681474
2016-08-23 00:00:00,270113184101689340
2016-08-23 01:00:00,2...
24.08.2016 / 23:38