dima-asana commented on issue #4533: [WIP][AIRFLOW-3702] Reverse Backfilling URL: https://github.com/apache/airflow/pull/4533#issuecomment-462020314 > If you don't mind, let's keep the discussion here to avoid duplicate pr. I will update the pr in these two days. Sure, sounds good. > I think we shouldn't allow reverse backfill if depend_past is true unless ignore_depend_on_past is set. The idea is fine by me (as opposed to just assuming that a user wouldn't do this). Please note that the implementation currently in this PR is incorrect for that part, in addition to the user confusion Ash mentioned. The ignore_first_depends_on_past checks explicitly only the start_date's dependency, so when it goes to check the most recent date it will still be blocked and never proceed (see https://github.com/apache/airflow/pull/4533/files#diff-54a57ccc2c8e73d12c812798bf79ccb2R2177). You'd probably want to instead add a lookup on the task instance and validate that it's not depends_on_past in the CLI command.
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