alamb commented on issue #107: URL: https://github.com/apache/arrow-datafusion/issues/107#issuecomment-826831033
Comment from Andy Grove(andygrove) @ 2020-10-12T21:26:28.047+0000: <pre>I have seen the same behavior. We have mostly been testing hash aggregates with queries that produce low cardinality results and will need to spend time testing for high cardinality results and see how we can optimize this.</pre> -- 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. For queries about this service, please contact Infrastructure at: us...@infra.apache.org