[I] `airflow dags backfill`: partition-range + ordering + concurrency [airflow]

["Lee-W (via GitHub)" <gi...@apache.org>]

Lee-W opened a new issue, #65922:
URL: https://github.com/apache/airflow/issues/65922

   ### Body
   
   ### What
   Extend `airflow dags backfill` for partitioned Dags so users can backfill a partition range with controlled ordering and concurrency. Basic partition backfill landed in #61464; what is missing is range flags (`--partition-start` / `--partition-end`), ordering control (in-order, parallel, pool-bounded waves), and concurrency caps independent of global parallelism. Example: deploy a new partitioned Dag and backfill 6
   months of history in pool-bounded waves of 4.
   
   ### Open question
   Default ordering — chronological, parallel, or follow whatever the timetable suggests? How does the per-backfill concurrency cap interact with the Dag's `max_active_runs` and global parallelism?
   
   ### Related
   #65921 
   
   ### Committer
   
   - [x] I acknowledge that I am a maintainer/committer of the Apache Airflow project.


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Re: [I] `airflow dags backfill`: partition-range + ordering + concurrency [airflow]

["Lee-W (via GitHub)" <gi...@apache.org>]

Lee-W closed issue #65922: `airflow dags backfill`: partition-range + ordering + concurrency
URL: https://github.com/apache/airflow/issues/65922


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