sundy-li commented on issue #839: URL: https://github.com/apache/arrow-datafusion/issues/839#issuecomment-894941589
> the take is only done once for each input array. It's done to the entire record batches. Considering the batches are 1024 rows with 3 columns, if the key number is 256, then there will be 256 small batches after the take. `Simd` will make no sense in this situation. > materializing the end keys/states to an array. Yes, this may be a good point to go. -- 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]
