rluvaton commented on issue #9083: URL: https://github.com/apache/arrow-rs/issues/9083#issuecomment-3756386372
> > row format is also useful when you need to copy a lot of columns around, for example when shuffling > > I don't understand why row format would be used here -- Arrow already has a format that is optimzied for copying values around (the IPC format) I'm talking about the shuffling/partitioning operation - Consider you have a 10 batches with 50 columns, and you want to split to 3 partitions based on a round robin or hash, so each row will be needed to copy to a different place. -- 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]
