uros-b opened a new pull request, #57121: URL: https://github.com/apache/spark/pull/57121
### What changes were proposed in this pull request? Follow-up to #56891: add a SQL migration guide entry for the behavior change: `GROUP BY GROUPING SETS (())` and empty `CUBE()` / `ROLLUP()` now return one row over empty input. ### Why are the changes needed? The behavior change was requested to be documented in the migration guide as part of https://github.com/apache/spark/pull/56891#pullrequestreview-4649357419. ### Does this PR introduce _any_ user-facing change? No, docs only change. ### How was this patch tested? N/A, docs only change. ### Was this patch authored or co-authored using generative AI tooling? No. -- 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]
