chaubold opened a new issue, #46222: URL: https://github.com/apache/arrow/issues/46222
### Describe the enhancement requested In the Java and C/C++ API (at least, I didn't check others) there is a way to write to the footer in an Apache Arrow IPC file. In Python, this footer cannot be populated. We use the footer for some metadata about the stored batches in our Java implementation, but cannot fill that field from Python, preventing us from offering full interoperability (if the custom footer info is needed). Could this feature be added? **Suggestion:** Probably this could just be adding a key-value metadata parameter to the RecordBatchFileWriter, because the C API would accept this as parameter in the `MakeFileWriter` call [here](https://github.com/apache/arrow/blob/main/python/pyarrow/ipc.pxi#L1031). ### Component(s) 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
