ben-da6 commented on issue #13827: URL: https://github.com/apache/arrow/issues/13827#issuecomment-1842834579
It would be useful if there were options to read a subset of column from the python side and at the lower level `open_file` api. Eg if we could do ``` source = pa.OSFile(path, "rb") file = pa.ipc.open_file(source) record = file.get_batch(0, columns=subset) ``` Or to be able to control how `dataset.to_batches` iterates through the data at the row group level across potentially partitioned data on disk. -- 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]
