[Bug] Daily Test Failed Because of nested Stmt WithClause be replace by parent

**Describe the bug**
quey : ```select 1 from (with w as (select 1 from baseall where exists (select 1 from baseall)) select 1 from w ) tt;```

failed message : ```Unknown table w```.

because of this code:

![image](https://user-images.githubusercontent.com/10553413/98933278-62640980-251b-11eb-821f-6236e96479f3.png)


