feng-tao edited a comment on issue #4421: [AIRFLOW-3468] Remove KnownEvent(Event)? URL: https://github.com/apache/airflow/pull/4421#issuecomment-452174547 @Fokko , regarding not having a migration script, I wonder what will happen for the following case: assume we have three tables: ``A``, ``B``, ``C``, we modify table ``A`` and provide an alemic migration script(version 1), then delete table ``B`` without a script, then modify table ``C`` with another alemic script(version 2), in this case will the migration(upgrade / downgrade) run successfully from version 1 to 2 or vice versa? If yes, I am +1 :)
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