Dev-iL commented on PR #51556: URL: https://github.com/apache/airflow/pull/51556#issuecomment-2965605450
Why is the expected behavior that mapping over a custom key is forbidden? Would it possible to add a fix suggestion (or a doc link with fix suggestions) to the error message? It could be one of the following: - Encouraging the user to split the task such that mapped-on output is the only output. (Workaround suggested by @jroachgolf84 ) - Add a passthrough task for unpacking the specific output to map on. (Workaround mentioned in the issue) - [Mapping over a task group](https://airflow.apache.org/docs/apache-airflow/stable/authoring-and-scheduling/dynamic-task-mapping.html#mapping-over-a-task-group) docs (after adding a note on this topic). -- 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: commits-unsubscr...@airflow.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org