ekuiper-new/test/iot_data_ts.txt

1,1541152488632,22.5,30
2,1541152488652,27.2,95
2,1541152489152,27.1,98
2,1541152489652,26.8,99
2,1541152490152,26.9,85
1,1541152490252,23.2,40
1,1541152490631,23.2,41
2,1541152490652,26.8,87
1,1541152491013,24.1,50
2,1541152491152,27.1,77
1,1541152491252,25.1,65
1,1541152491613,25.2,67
2,1541152491652,27.3,77
1,1541152491673,25.3,70
1,1541152492222,25.3,70