hubgeter opened a new pull request, #69512:
URL: https://github.com/apache/doris/pull/69512
### What problem does this PR solve?
Issue Number: N/A
Related PR: N/A
Problem Summary:
Add bounds and consistency validation while deserializing HLL and nullable
HLL columns. Pass the actual buffer end through block decoding and verify row
counts before Arrow conversion.
### Release note
Improve validation of serialized HLL payloads.
### Check List (For Author)
- Test
- [ ] Regression test
- [x] Unit Test
- 24 focused BE tests passed with ASAN.
- [ ] 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
- Behavior changed:
- [ ] No.
- [x] Yes.
- Inconsistent or truncated serialized HLL values are rejected.
- Does this need documentation?
- [x] 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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