Hive sub-query results with as multiplexing to create a temporary intermediate table

Use the following query to the

with tmp0 as (
    select a, b, c from test0
),
tmp1 as(
    select a, b, c from test1
)
select
    db0.a, db1.a, db2.a
from
    tmp0 db0
left join
    tmp0 db1
on
    db0.b = db1.b
left join
    tmp1 db2
on
    db0.b = db2.b

Measured, at least in some versions, not working, or temporary tables will generate many times

If you have some random elements in a temporary table, or will generate several different

 

references:

https://www.cnblogs.com/30go/p/10116815.html