增加工作日排序字段

drop table work_day_tbl;
create table work_day_tbl (
     day                   string comment '日期'
    ,week                  int    comment '周一1，周日7'
    ,work_day              int    comment '1工作日2周末3节假日'
    ,work_day_rn           int    comment '工作日排序'
) 
stored as orc
;

insert overwrite table work_day_tbl
select
     t2.day
    ,t2.week
    ,t2.work_day
    ,sum(t2.flag) over(order by t2.day rows between unbounded preceding and current row ) as work_day_rn
from (
    select
     t1.*
    ,case when work_day = 1 then 1 else 0 end as flag
    from (
        select '2013-08-15' as day,4 as week,1 as work_day union all
        select '2013-08-16' as day,5 as week,1 as work_day union all
        select '2013-08-17' as day,6 as week,2 as work_day union all
        select '2013-08-18' as day,7 as week,2 as work_day union all
        select '2013-08-19' as day,1 as week,1 as work_day union all
        select '2013-08-20' as day,2 as week,1 as work_day union all
        select '2013-08-21' as day,3 as week,1 as work_day union all
        select '2013-08-22' as day,4 as week,1 as work_day union all
        select '2013-08-23' as day,5 as week,1 as work_day union all
        select '2013-08-24' as day,6 as week,2 as work_day union all
        select '2013-08-25' as day,7 as week,2 as work_day union all
        select '2013-08-26' as day,1 as week,1 as work_day union all
        select '2013-08-27' as day,2 as week,1 as work_day union all
        select '2013-08-28' as day,3 as week,1 as work_day
    ) t1
) t2
;