Dandandan commented on issue #20773: URL: https://github.com/apache/datafusion/issues/20773#issuecomment-4026078215
Some idea that came up today during discussing morsel-driven changes (https://github.com/apache/datafusion/pull/20481) is that we can as well sort on (file / row group / page) statistics (i.e. cluster min/maxes together for each worker/partition). This should make the the cardinality of the partial aggregate smaller (and thus much faster / less repartitioning going on). Not an algorithm change, but could potentially help a lot of queries. -- 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] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
