hard20 pts · first answer countsorchestrationreliability

Safe backfills

You need to reprocess 90 days after a bug fix. The DAG appends rows with INSERT and uses datetime.now() to choose which data to load. What must change first?

A.Nothing; just trigger 90 manual runsB.Use the run's logical date (data interval) instead of now(), and overwrite or MERGE the target partition so reruns are idempotentC.Increase task retries to 90D.Turn off catchup and run the DAG once

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