integration/spark/src/test/resources/datawithnullmeasure.csv

ID,date,country,name,phonetype,serialname,salary
1,2015/7/23,china,aaa1,phone197,ASD69643,0
2,2015/7/24,china,aaa2,phone756,ASD42892,
3,2015/7/25,china,aaa3,phone1904,ASD37014
4,2015/7/26,china,aaa4,phone2435,ASD66902,0