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Posted to commits@airflow.apache.org by GitBox <gi...@apache.org> on 2020/12/21 00:14:24 UTC

[GitHub] [airflow] ms32035 edited a comment on pull request #13199: Create dag dependencies view

ms32035 edited a comment on pull request #13199:
URL: https://github.com/apache/airflow/pull/13199#issuecomment-748692939


   * This view is not used as often as the DAG list for example, so I don't
   think the extra table would be an optimization.
   * To calculate dependencies all DAGs are required, which could impact
   multi-threaded DAG processing, and transactional update of the table with
   all recalculated dependencies and referential constraints enabled would be
   a hell. Otherwise, if the dependencies were recalculated when each DAG is
   processed, there's a risk of inconsistencies (links to DAGs that don't
   exist etc)
   


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