mrhhsg opened a new pull request, #65995:
URL: https://github.com/apache/doris/pull/65995
### What problem does this PR solve?
Issue Number: None
Related PR: #62835
Problem Summary:
`AdaptiveBlockSizePredictor` is a block-level helper shared by segment scans
and external file scanners. Keeping it under `storage/segment` forces external
scan code to depend on the storage layer even though the predictor only uses
`Block` statistics and EWMA calculations.
This PR moves the predictor implementation and its focused unit test to
`core/block`, updates all consumers to use the new include path, and removes
the unused segment-specific `ColumnMetadata` declaration. It also makes
`predict_next_rows()` const because it does not modify predictor state. The
prediction behavior is unchanged.
### Release note
None
### Check List (For Author)
- Test <!-- At least one of them must be included. -->
- [ ] Regression test
- [x] Unit Test
- `./run-be-ut.sh --run --filter='AdaptiveBlockSizePredictorTest.*'
-j 48` (26 tests passed)
- [x] Manual test (add detailed scripts or steps below)
- `./build-support/clang-format.sh`
- `./build-support/check-format.sh`
- clang-tidy on all changed C++ lines
- `git diff --check origin/master...HEAD`
- [ ] 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:
- [x] No.
- [ ] Yes. <!-- Explain the behavior change -->
- Does this need documentation?
- [x] 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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