[PR] Delete `dag_version` table when downgrading the DB from the versioned Airflow [airflow]

["ephraimbuddy (via GitHub)" <gi...@apache.org>]

ephraimbuddy opened a new pull request, #44397:
URL: https://github.com/apache/airflow/pull/44397

   In dagcode, fileloc_hash column was a primary key on the version before dag versioning. If dagcode is not deleted before downgrading, the fileloc_hash column, created when downgrading, would be a null column that can't be used for a primary key. A similar thing applies to serialized dag, which would have duplicates, and the primary key can't be determined. The solution is to delete the dag_version table data, which will delete the serdag and dagcode table data
   
   


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Re: [PR] Delete `dag_version` table when downgrading the DB from the versioned Airflow [airflow]

["ephraimbuddy (via GitHub)" <gi...@apache.org>]

ephraimbuddy merged PR #44397:
URL: https://github.com/apache/airflow/pull/44397


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