lxy-9602 opened a new pull request, #472: URL: https://github.com/apache/paimon-cpp/pull/472
<!-- PR titles must follow Conventional Commits: <type>(<optional-scope>): <description> --> ### Purpose <!-- Linking this pull request to the issue --> Linked issue: close #169 Fix data evolution reads when file-index selections, deletion vectors, and partially populated Blob columns are combined. - Evaluate file indexes before opening deletion vectors or data files. Share bitmap selections across normal files with identical row-id ranges to preserve column alignment. - Validate deletion vectors against selected row ranges and apply them only to selected batch rows, allowing reads from files that extend beyond the selected anchor range. - Use the normal file's logical range for Blob backfills, fill uncovered rows with NULLs, and apply deletion vectors consistently to physical rows and placeholder gaps. - Route Blob bunches through fallback reading, including single-layer bunches, and reject anchorless groups when the split carries deletion vectors. <!-- What is the purpose of the change --> ### Tests Added or updated unit and integration coverage for: - Single-layer Blob gap filling and unresolved placeholders. - Blob bunch range validation and same-layer overlap detection. - Selected-range DV validation with Bitmap32 and Bitmap64 vectors. - Partial Blob backfills with deletion vectors and anchorless-group rejection. - File-index pruning before DV access and shared bitmap selection combined with deletions. <!-- List UT and IT cases to verify this change --> ### API and Format <!-- Does this change affect API in include dir or storage format or protocol --> ### Documentation <!-- Does this change introduce a new feature --> ### Generative AI tooling Generated-by: OpenAI Codex (GPT-6) <!-- If generative AI tooling has been used in the process of authoring this patch, please include the phrase: 'Generated-by: ' followed by the name of the tool and its version. If no, write 'No'. Please refer to the [ASF Generative Tooling Guidance](https://www.apache.org/legal/generative-tooling.html) for details. --> -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
