csun5285 opened a new pull request, #69249:
URL: https://github.com/apache/doris/pull/69249
### What problem does this PR solve?
Related PR: #69087
Backport #69087 to `branch-4.2` (source commit
`01e735b29c8b8803b9e2df10b46b9b02db1e6251`).
- Prevent Segment TopN from inserting an incomplete condition-cache entry
after reaching its local read limit, which can cause later queries to miss rows.
- Allow COUNT_ON_INDEX with residual predicates that reference no columns,
such as `random() < 2`, while continuing to reject residual predicates that
reference columns.
- Include both regression suites and their expected output files from the
original PR.
The include conflict in `olap_scan_operator.cpp` was resolved by adding
`<set>` to the 4.2 includes. All added and removed lines match the original
patch.
### Validation
- clang-format 16 check passed for both changed C++ files.
- Verified that the added and removed lines match the original PR and that
all four regression files are byte-identical.
- Source whitespace check passed; generated `.out` files retain their
expected trailing blank lines.
- Build and regression tests were not run for this backport.
### Release note
None
### Check List (For Author)
- Test
- [x] Regression test (included from the original PR; not run locally)
- Behavior changed:
- [x] Yes. Fix incorrect condition-cache reuse and erroneous
COUNT_ON_INDEX rejection, as described above.
- Does this need documentation?
- [x] No.
### 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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