XiaoHongbo-Hope opened a new pull request, #9327: URL: https://github.com/apache/paimon/pull/9327
### Purpose Support Arrow callable assignments in Ray self-merge (`source == target` with `on=["_ROW_ID"]`). Callables receive explicitly declared `read_columns` plus `_ROW_ID`, run after matched-clause filtering, and return one `pyarrow.Array` or `pyarrow.ChunkedArray` value per matched row. This keeps general source-target merge unchanged and enables distributed row-local transformations, including updating existing VARIANT paths without constructing a separate source dataset. Chunked callback results are preserved without combining their buffers. ### Tests - `ray_data_evolution_merge_into_test.py`: 91 passed - callable assignment, VARIANT update, empty match, validation, and ChunkedArray tests - flake8 - Python 3.6 compileall - `git diff --check` -- 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]
