hussein-awala commented on issue #29339: URL: https://github.com/apache/airflow/issues/29339#issuecomment-1414704413
Operator and task group expansion in an expanded task group is not supported yet. We raise [NotImplementedError](https://github.com/apache/airflow/blob/main/airflow/models/mappedoperator.py#L309-L309) exception for the operators but I am not sure if it is raised in your case. To implement the mapped tasks, we have added a new column `map_index` which represent the id of each mapped task, and we set it to `-1` for the normal tasks. Supporting the nested expansion is not possible with the same logic, because we need to add a new column for each level, and the number of possible levels is infinite in this case (nested expansion in nested expansion ...), so I don't think we will support it soon. -- 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]
