benWize commented on pull request #15174: URL: https://github.com/apache/beam/pull/15174#issuecomment-880835480
Hi @ibzib, I am working on a group of related issues using some of your work in #14392. Could you help me to take a look at the progress so far and provide some guidance on the next steps? I am planning to include [BEAM-12098](https://issues.apache.org/jira/browse/BEAM-12098) and [BEAM-12099](https://issues.apache.org/jira/browse/BEAM-12099) in this PR, but for those, I have a problem, in the transformation related to UNNEST, when it receives an empty array, does not return anything so it fails before aggregation transforms (COUNT, BIT_OR). I think the problem could be in this part https://github.com/apache/beam/blob/master/sdks/java/extensions/sql/zetasql/src/main/java/org/apache/beam/sdk/extensions/sql/zetasql/unnest/BeamZetaSqlUncollectRel.java#L115 because when the array is empty, this transform does not output anything. Any guidance on this would be appreciated. Thanks! -- 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]
