kennknowles opened a new issue, #19416: URL: https://github.com/apache/beam/issues/19416
The SQL operation UNION does not work on numerical columns such as DOUBLE. The error shown is related to GroupByKey, but I am not sure why UNION includes any steps that require GroupBy which blocks non-deterministic columns. Also, would this issue be solved if we implement UNION with a different approach such as BEAM-3721, BEAM-3722 (use flatten instead of CoGroupByKey)? Imported from Jira [BEAM-7361](https://issues.apache.org/jira/browse/BEAM-7361). Original Jira may contain additional context. Reported by: mizokc. -- 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]
