MaxiBoether opened a new issue, #45277: URL: https://github.com/apache/arrow/issues/45277
### Describe the enhancement requested I installed `pyarrow` via pip without specifying a concrete version (which was my fault). Another requirement forced pip to download pyarrow 17. At the same time, I installed libarrow 18 via apt in my build container. I have a custom C++ Python extension which via CMake got compiled against the system libarrow 18. In Python, I read a pyarrow table, passed this to the C++ extension, and then on `GetColumnByName` my application segfaulted. It took me a bit to realize that I have a version mismatch between python and C++, I presume the memory layouts of the tables in memory are a bit different, which probably caused the segfault. Now it is all working fine again. I wonder there should be something like a magic version byte that gets updated when the in-memory layout changes. This way, I could have avoided debugging this and gotten a better error message instead. While this might not be a common problem, it could help avoid issues like the segfault I encountered. ### Component(s) C++, Python -- 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
