hive 分组排序(hive分组后统计组内数量)

Hive实现切分后数组内排序

select 
   distinct cust
   ,sku
   ,c2
   ,case 
      when length(c1) <= 9 then replace(c1,',','')
      --取最小
      when length(c1) >  9 then sort_array(split(c1,','))[0]
      --取最大
      when length(c1) >  9 then -sort_array(-split(c1,','))[0]
      end as c1
from table   
where ds = '${bdp.system.bizdate}'
--and length(c1)  > 8
and nvl(sku,'') <> ''