Union和With Clause SubQuery Oracle

Question

在生产中使用之前，我需要立即帮助解决问题：

在Oracle11g中使用以下SQL

With sub_query1 as (select t1.column1, t2.column2, t1.id from table1 t1
inner join table2 t2 on t1.id = t2.id )
SELECT t3.column3 s1.* FROM sub_query1 s1 
INNER JOIN table3 t3 ON t3.id=s1.id
union
SELECT t4.column4 s1.* FROM sub_query1 s1 
INNER JOIN table4 t4 ON t4.id=s1.id;

当我按原样使用时，这是有效的，但是当在SUB_QUERY1之前添加一个子查询它不起作用时，它只返回0行而没有任何错误 ：< / p>

With 
main_sub_query as (select ta.id from tableA ta)
--second subquery
, sub_query1 as (select t1.column1, t2.column2, t1.id from table1 t1
inner join table2 t2 on t1.id = t2.id 
inner join main_sub_query mq ON mq.id=t1.id
)
SELECT t3.column3 s1.* FROM sub_query1 s1 
INNER JOIN table3 t3 ON t3.id=s1.id
union
SELECT t4.column4 s1.* FROM sub_query1 s1 
INNER JOIN table4 t4 ON t4.id=s1.id;

当我删除联盟以及之后的部分时，它会返回数据，不确定是什么问题。