zhangstar333 opened a new pull request, #49243:
URL: https://github.com/apache/doris/pull/49243
### What problem does this PR solve?
Problem Summary:
Currently, the partition sort implementation follows a streaming approach.
Assuming there are a total of 10 sorters,
when the sink operator completes sorting for one sorter, it immediately
notifies the source operator that it's ready to read data.
After finishing reading from the current sorter, the source operator checks
if the next sorter is available for reading.
If not, it blocks itself and waits for the next notification from the sink
operator.
Now the have a case like:
// sink
--->0-->ready(0)------>1--->finish-----sleep(10s)---------->ready(1号) -------> 2
// source -------->0 get_next------->1 get_next--->2--->2 block------>2
get_next---> 3
the sink operator signal ready for idx[1] sorter, but the source get this
mistake, let idx[2] sorter running.
### 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
- [ ] Confirm test cases
- [ ] Confirm document
- [ ] Add branch pick label <!-- Add branch pick label that this PR should
merge into -->
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