englefly opened a new pull request, #14239:
URL: https://github.com/apache/doris/pull/14239
# Proposed changes
in origin algorithm, the penalty is abs(leftRowCount - RightRowCount).
this will make some right deep tree escape from penalty， because the
substraction is almost zero.
Penalty by RightRowCount can avoid this escape.
we missed penalty to right deep tree if its left and right are almost equal
Issue Number: close #xxx
## Problem summary
Describe your changes.
## Checklist(Required)
1. Does it affect the original behavior:
- [ ] Yes
- [ ] No
- [ ] I don't know
2. Has unit tests been added:
- [ ] Yes
- [ ] No
- [ ] No Need
3. Has document been added or modified:
- [ ] Yes
- [ ] No
- [ ] No Need
4. Does it need to update dependencies:
- [ ] Yes
- [ ] No
5. Are there any changes that cannot be rolled back:
- [ ] Yes (If Yes, please explain WHY)
- [ ] No
## Further comments
If this is a relatively large or complex change, kick off the discussion at
[d...@doris.apache.org](mailto:d...@doris.apache.org) by explaining why you
chose the solution you did and what alternatives you considered, etc...
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