Data Backfill - CI/CD Glossary Definition
A data backfill populates a new or changed column across existing rows, usually in batches to avoid locking.
A data backfill populates a new or changed column across existing rows after a schema migration adds it, usually in batches to avoid locking.
Backfills run separately from schema migrations because they can touch millions of rows; a pipeline often runs them as a background job rather than blocking the deploy.
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