The column shipped with expand-and-contract and a billion rows still hold nulls. How do you run the backfill?

A billion-row backfill is a deployable, throttled, resumable job with checkpoints and verification gates. Ad-hoc scripts against prod are how it becomes an incident.

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A billion-row backfill is a deployable, throttled, resumable job with checkpoints and verification gates. Ad-hoc scripts against prod are how it becomes an incident.

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