EmmyMiao87 opened a new pull request #5555:
URL: https://github.com/apache/incubator-doris/pull/5555
## Proposed changes
[Colocate plan][Step2] Colocate aggregation covers more situations
The old colocate aggregation can only cover the case where the child is
scan.
In fact, as long as the child's data distribution meets the requirements,
no matter what the plan node on the child node is, a colocate
aggregation can be performed.
This PR also fixes the correct data partition attribute of fragment.
The data partition of fragment which contains scan node is Hash
Partition rather than Random.
This modification is mainly to determine the possibility of colocate
through the correct distribution of child fragments.
## Types of changes
What types of changes does your code introduce to Doris?
_Put an `x` in the boxes that apply_
- [ ] Bugfix (non-breaking change which fixes an issue)
- [x] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing
functionality to not work as expected)
- [ ] Documentation Update (if none of the other choices apply)
- [ ] Code refactor (Modify the code structure, format the code, etc...)
## Checklist
_Put an `x` in the boxes that apply. You can also fill these out after
creating the PR. If you're unsure about any of them, don't hesitate to ask.
We're here to help! This is simply a reminder of what we are going to look for
before merging your code._
- [x] I have created an issue on (Fix #5184) and described the bug/feature
there in detail
- [x] Compiling and unit tests pass locally with my changes
- [ ] I have added tests that prove my fix is effective or that my feature
works
- [ ] If these changes need document changes, I have updated the document
- [ ] Any dependent changes have been merged
## Further comments
unit test is coming.
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