westonpace commented on issue #5770: URL: https://github.com/apache/arrow-rs/issues/5770#issuecomment-2113848324
10K columns by 10 row groups by 1M rows is 100B values (400GB with int32). I don't think anyone has data like that. My experience has been either: * The files they make are much smaller (and thus not enough of undersized row groups) E.g. financial data where ticker is column. * The columns are very sparse (and thus a need for better sparse encoding). E.g. feature stores. -- 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]
