wangzhigang1999 opened a new pull request, #10800:
URL: https://github.com/apache/paimon/pull/10800
### Purpose
Fixes #10799.
Use one Arrow `min_max` call instead of separate `min` and `max` calls when
computing column statistics and primary-key sequence-number ranges in
`DataWriter`. This reduces duplicate statistics computation while preserving
null handling, unsupported-type guards, and the statistics fields. No
dependency or configuration changes are needed.
### Tests
On ARM64 / Python 3.12, the following existing tests passed with both
PyArrow **16.0.0** and **22.0.0**: **173 passed, 29 skipped per version**. The
skipped variants require the optional Rust backend or its dedicated test job.
```sh
python -m pytest -q pypaimon/tests/write/table_write_test.py \
pypaimon/tests/write/append_writer_lifecycle_test.py \
pypaimon/tests/test_write_merge_buffer.py \
pypaimon/tests/write/row_kind_write_test.py \
pypaimon/tests/write/write_buffer_test.py
```
An additional local comparison matched the old and new column-statistics
results in 1,522 cases per version, including nulls, NaN, numeric/string types,
and chunked arrays. No new test files are included in this PR. Upstream Flake8
and `git diff --check` passed.
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