MASTREX opened a new issue, #54071: URL: https://github.com/apache/airflow/issues/54071
### Apache Airflow version main (development) ### If "Other Airflow 2 version" selected, which one? _No response_ ### What happened? https://github.com/apache/airflow/blob/a1aa2732bf2b5d9c0ba694fa1b3f47cdcb12cca9/airflow-core/src/airflow/migrations/versions/0068_3_0_0_ti_table_id_unique_per_try.py#L120 While downgrading my airflow version from v3.0.0 to v2.10.4 I have facing an error on line `ALTER TABLE task_instance_history ADD COLUMN task_instance_id UUID NOT NULL` This mapped to above code which seem to add a column with not null property This has failed as the table already contains some data and adding a new column with no data is not possible (Sorry cant include any log or screenshot as it happened on my work laptop) ### What you think should happen instead? Downgrade to be reversible and symmetrical ### How to reproduce Do the downgrade when data exist in `task_instance_history` table ### Operating System rhel9 ### Versions of Apache Airflow Providers (probably not required) ### Deployment Docker-Compose ### Deployment details _No response_ ### Anything else? _No response_ ### Are you willing to submit PR? - [x] Yes I am willing to submit a PR! ### Code of Conduct - [x] I agree to follow this project's [Code of Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md) -- 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]
