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--历日去重访客累积表

drop table dw_user_dsct_history;

create table dw_user_dsct_history(

day string,

ip string

)

partitioned by(datestr string);

--每日新用户追加到累计表

drop table dw_user_dsct_history;

create table dw_user_dsct_history(

day string,

ip string

)

partitioned by(datestr string);

--每日新用户追加到累计表

insert into table dw_user_dsct_history partition(datestr='2013-09-19')

select tmp.day as day,tmp.today_addr as new_ip from

(

select today.day as day,today.remote_addr as today_addr,old.ip as old_addr

from

(select distinct remote_addr as remote_addr,"2013-09-19" as day from ods_weblog_detail where datestr="2013-09-19") today

left outer join

dw_user_dsct_history old

on today.remote_addr=old.ip

) tmp

where tmp.old_addr is null;