amol- commented on issue #38837: URL: https://github.com/apache/arrow/issues/38837#issuecomment-2147690001
> Are per-batch statistics even useful? You've presumably already made the query plan and done the I/O, so there's little opportunity to make use of the statistics at that point. When exchanging data via C-Data I don't think you can take for granted how that data was fetched, so while in the majority of cases you are correct, there might be cases where you are receiving the data from a source that doesn't know anything about the filtering that the receiver will be going to apply. In that case there is a value in passing the statistics-per-batch. -- 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]
