yukkit commented on issue #7834: URL: https://github.com/apache/arrow-datafusion/issues/7834#issuecomment-1765752478
The partitioning granularity of `RoundRobin` is RecordBatch, and the partitioning granularity of `Hash` is row. When the input partitions are very few and the amount of data is relatively large, adding the RoundRobin partitioner can increase the parallelism of calculating hash values and improve the speed. I think it is beneficial only in this case. -- 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]
