最近用了一个RowNumber() over()函数 进行三张4000万数据的关联筛选,建表语句如下: create table CiCustomerPortrait2 as SELECT ROW_NUMBER() OVER() as id,* from (select t_7.phone_no,t_7.L1301,t_7.L1431,t_7.L1449,t_7.L1489,t_8.L1713,t_92.L1879,t_92.L1907 from DW_COC_LABEL_INTERNET_D_…