Michael-J-Ward opened a new issue, #6318: URL: https://github.com/apache/arrow-rs/issues/6318
**Is your feature request related to a problem or challenge? Please describe what you are trying to do.** `datafusion-python` currently errors when calling `select count(*) from t` when `t` is a `pyarrow.Dataset`. The resulting `pyarrow.RecordBatch` contains no rows and has a schema with no columns, but it does have `num_rows` set to the correct number. **Describe the solution you'd like** Support was added to arrow-rs in https://github.com/apache/arrow-rs/pull/1552 for a `RecordBatch` with zero columns but non zero row count. I'd like `impl FromPyArrow for RecordBatch` to use this functionality. https://github.com/apache/arrow-rs/blob/b711f23a136e0b094a70a4aafb020d4bb9f60619/arrow/src/pyarrow.rs#L334-L392 -- 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: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
