Baymine opened a new pull request, #67958:
URL: https://github.com/apache/doris/pull/67958
Issue Number: None
Related PR: None
Problem Summary: Repeated aliases of one source slot could remain below TopN
and produce duplicate lazy fetch slots. Classify repeated identity projections
per LogicalProject by source ExprId, pull their aliases above TopN, preserve
the original output schema through the existing reconstruction path, and verify
the resulting physical lazy-fetch schema.
TopN lazy materialization now fetches repeated aliases of the same source
column only once.
- Test: FE logical-rule and physical-plan unit tests; FE build
- Behavior changed: Yes, repeated identity aliases are reconstructed above
TopN
- Does this need documentation: No
### 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
- [x] 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
- [ ] Confirm test cases
- [ ] Confirm document
- [ ] Add branch pick label <!-- Add branch pick label that this PR should
merge into -->
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
