zml1206 commented on PR #46499:
URL: https://github.com/apache/spark/pull/46499#issuecomment-2124277717
@cloud-fan I tried to push down predicate through `With`, however, found
that when there is complex nesting, legal `With` cannot be generated, common
expression exists in both child and defs of `With`.
For example
```
SELECT *
FROM (
SELECT c, c * c AS d
FROM (
SELECT a + a AS c
FROM t1
) t2
GROUP BY c
) t3
WHERE d + d > c + c
```
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