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Fan-out: backward vs. forward direction semantics #65761

@Lee-W

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Let authors choose whether a fan-out produces keys inside the upstream window or the next one. Example: a weekly artifact W10 (March 4–10) can enable the seven daily partitions inside that week (backward) or the seven following days (March 11–17, forward). Both are valid patterns. Design a valid interface on partition mapper for it

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#65654

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  • I acknowledge that I am a maintainer/committer of the Apache Airflow project.

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