alamb opened a new issue #95: URL: https://github.com/apache/arrow-datafusion/issues/95
*Note*: migrated from original JIRA: https://issues.apache.org/jira/browse/ARROW-9552 It is important for users to be able to debug query performance and each operator is capable of collecting important metrics, like # of input and output batches and rows, as well as elapsed time spent doing different types of processing. We should design traits for metrics reporting so that other projects using DataFusion can access these metrics and make them available for users to see. -- 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