hive表拉链

--获取0-99
WITH a AS (SELECT explode(split('0,1,2,3,4,5,6,7,8,9',',')))
select cast(a1.col + 10*a2.col as int) from a  a1 JOIN a a2 ON 1=1

拉链表.做出一段日历，每天拿去关联拉链表获取出当天切片。这样就能获取出每天拉链表的状况，拿这个每天去匹配

create temporary table temp.v_dmn_org_daily as
WITH a AS (SELECT explode(split('0,1,2,3,4,5,6,7,8,9',',')))
SELECT t.*
      ,regexp_replace(d.dt_date,'-','') as dt_date
  FROM dim.v_fin_dmn_org t
 INNER JOIN (
   SELECT 
    date_sub('$rptDate', cast(a1.col + 10*a2.col as int)) dt_date,
    a1.col + 10*a2.col as num 
   FROM a a1 JOIN a a2 ON 1=1) d
    ON 1=1  and num <20
 WHERE regexp_replace(t.start_dt,'-','') <= regexp_replace(d.dt_date,'-','')
   AND regexp_replace(t.end_dt,'-','')   >  regexp_replace(d.dt_date,'-','')
;
PS：直接使用上面的dt_date去等于拉链使用