flashzxi opened a new issue, #43124: URL: https://github.com/apache/arrow/issues/43124
### Describe the bug, including details regarding any error messages, version, and platform. In grouper.cc, allocated a random uint32_t size memory because of using uninitialized offset vector when `group_nums == 0` see pr: https://github.com/apache/arrow/pull/43123 <img width="1094" alt="image" src="https://github.com/apache/arrow/assets/39670222/03f89efd-6495-4a54-8149-e6c6f3972dea";> ### Component(s) C++ -- 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: issues-unsubscr...@arrow.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
