kaxil commented on pull request #9660:
URL: https://github.com/apache/airflow/pull/9660#issuecomment-653904814
> What does this do if someone is running on mainline already? (I think
@houqp is for instance)
Things would run fine but when `airflow db upgrade` is run it would error
out with the following message:
```
❯ airflow db upgrade
DB: sqlite:////Users/kaxilnaik/airflow_main/airflow.db
[2020-07-05 16:14:18,566] {db.py:608} INFO - Creating tables
INFO [alembic.runtime.migration] Context impl SQLiteImpl.
INFO [alembic.runtime.migration] Will assume non-transactional DDL.
INFO [alembic.runtime.migration] Running upgrade a66efa278eea ->
cf5dc11e79ad, drop_user_and_chart
....
....
....
sqlalchemy.exc.OperationalError: (sqlite3.OperationalError) no such table:
chart
```
Well, the "master/develop" branch is supposed to be bleeding edge and should
not be used in production. If someone does it, it is at some risk.
I can definitely add some safety checks so it still works for users that
were working with Master/Mainline.
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