dzr171712 opened a new pull request, #66706:
URL: https://github.com/apache/doris/pull/66706
### What problem does this PR solve?
Issue Number: close #xxx
Related PR: #xxx
Problem Summary:
`CompactionMixin::calc_input_rowsets_row_num()` calculated input rowset disk
size instead of row count. As a result, cumulative compaction task
classification compared bytes with
`large_cumu_compaction_task_row_num_threshold`, which could incorrectly treat
compactions with small row count but disk size over the threshold value as
large tasks.
This PR fixes the calculation to sum `rowset->num_rows()` and adds a BE unit
test to verify row-count calculation is independent from total-size calculation.
### Release note
None
### Check List (For Author)
- Test
- [ ] Regression test
- [✅] Unit Test
- [ ] Manual test
- [ ] No need to test or manual test.
- Behavior changed:
- [✅] No.
- [ ] Yes.
- Does this need documentation?
- [✅] No.
- [ ] Yes.
### Check List (For Reviewer who merge this PR)
- [ ] Confirm the release note
- [ ] Confirm test cases
- [ ] Confirm document
- [ ] Add branch pick label
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