neilconway opened a new issue, #22779: URL: https://github.com/apache/datafusion/issues/22779
### Describe the bug A partial aggregate with no group by expression emits one row per output partition, even for input partitions that did not receive any rows. The stats code gets this incorrect, and claims that the partial agg outputs `Exact(0)` rows in this scenario. This is off by a factor of `partition_count`, which can lead to suboptimal planning decisions downstream. ### To Reproduce _No response_ ### Expected behavior _No response_ ### Additional context _No response_ -- 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]
