Commits

Wes McKinney authored 2b37fd42288
ARROW-8888: [Python] Do not use thread pool when converting pandas columns that are definitely zero-copyable The ThreadPoolExecutor has a good amount of per-column overhead Closes #7563 from wesm/ARROW-8888 Authored-by: Wes McKinney <wesm@apache.org> Signed-off-by: Wes McKinney <wesm@apache.org>