alamb commented on issue #5646: URL: https://github.com/apache/arrow-datafusion/issues/5646#issuecomment-1767091467
BTW I think the core problem here is that DataFusion's parallel hash grouping builds the entire hash table for each input partition -- thus it requires memory proportional to the number of cores. This is tracked more in https://github.com/apache/arrow-datafusion/issues/6937 -- 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]
