相关疑难解决方法(0)

我有一个具有以下架构的配置单元表:

COOKIE  | PRODUCT_ID | CAT_ID |    QTY    
1234123   [1,2,3]    [r,t,null]  [2,1,null]

我如何规范化数组,以便得到以下结果

COOKIE  | PRODUCT_ID | CAT_ID |    QTY

1234123   [1]          [r]         [2]

1234123   [2]          [t]         [1] 

1234123   [3]          null       null 

我尝试过以下方法:

select concat_ws('|',visid_high,visid_low) as cookie
,pid
,catid 
,qty
from table
lateral view explode(productid) ptable as pid
lateral view explode(catalogId) ptable2 as catid 
lateral view explode(qty) ptable3 as qty

然而结果是笛卡尔积.