yx-keith opened a new pull request, #63563:
URL: https://github.com/apache/doris/pull/63563
… (#57348)
ClearContextStatus wipes cteIdToOutputIds and consumerIdToFilters, but the
second-pass RewriteCteChildren still reads them. Without re-collecting,
RewriteCteChildren either NPEs on producerOutputs or silently skips the
producer-output pruning, both leading to wrong or sub-optimal plans on queries
that hit the second rewrite pass (nested CTEs with set operations and scalar
subqueries).
Insert CollectFilterAboveConsumer and CollectCteConsumerOutput between
ClearContextStatus and the second-pass RewriteCteChildren, mirroring the order
used in the first pass. Also add a defensive null guard in tryToConstructFilter
so a missing cteIdToConsumers entry returns the child unchanged instead of
NPE-ing.
### What problem does this PR solve?
Issue Number: close #xxx
Related PR: #xxx
Problem Summary:
### Release note
None
### Check List (For Author)
- Test <!-- At least one of them must be included. -->
- [ ] Regression test
- [ ] Unit Test
- [ ] Manual test (add detailed scripts or steps below)
- [ ] No need to test or manual test. Explain why:
- [ ] This is a refactor/code format and no logic has been changed.
- [ ] Previous test can cover this change.
- [ ] No code files have been changed.
- [ ] Other reason <!-- Add your reason? -->
- Behavior changed:
- [ ] No.
- [ ] Yes. <!-- Explain the behavior change -->
- Does this need documentation?
- [ ] No.
- [ ] Yes. <!-- Add document PR link here. eg:
https://github.com/apache/doris-website/pull/1214 -->
### Check List (For Reviewer who merge this PR)
- [ ] Confirm the release note
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- [ ] Confirm document
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