migration-review-gate

A database migration safety review evaluates schema changes by classifying destructive operations, lock risks, and nullability constraints. It checks for backfill risks, downgrade realism, and rolling deploy compatibility to ensure migration safety before deployment.

A destructive database migration involves operations that permanently remove or alter schema elements and data. Evaluation classifies these operations, assesses nullability and backfill risks, and checks downgrade realism to recommend staged or expanded migration steps.

Assess rollback viability by checking downgrade realism and rolling deploy compatibility during the migration review. This process identifies whether schema changes can be safely reversed and recommends staged or expanded migrations to maintain deployment safety.

Yes, the migration review handles backfill risks by comparing migration scripts against schema intent and evaluating nullability constraints. It identifies potential data inconsistencies and recommends block-safety measures for staged or expanded deployments.

A migration safety review is needed for rolling deployments when schema changes involve destructive operations, lock risks, or nullability changes. The review verifies rolling deploy compatibility and recommends staged or expanded migrations with block-safety.

The limitations of automated migration safety checks include reliance on schema model comparison and inability to predict runtime application errors. Checks evaluate destructive ops, lock risks, and downgrade realism, but cannot account for data-dependent edge cases.