migratix

You can perform zero-downtime database migrations in Supabase by applying expand/contract patterns that separate schema deployment from code changes. This approach coordinates SQL scripts, TypeScript adaptations, and data backfills across multi-project deployments to maintain continuous availability.

The expand/contract pattern for database schema evolution separates changes into two phases: expanding the schema to support both old and new versions, then contracting to remove deprecated structures. This ensures zero-downtime migrations by maintaining backward compatibility throughout the transition.

You can rollback a database migration using explicit reversible steps built into the migration workflow. Each deployment includes a defined rollback strategy that reverses SQL schema changes and restores data integrity, allowing safe reversion if validation fails in staging or production.

Yes, you can coordinate database migrations across multiple Supabase projects through cross-project synchronization. The migration workflow manages schema evolution and data changes simultaneously across connected deployments, ensuring deterministic expand/contract workflows and code compatibility for business applications.

Yes, you need to update TypeScript code when running zero-downtime migrations to handle both old and new database schemas during the transition period. Code compatibility is required throughout the expand phase before the contract phase safely removes the deprecated schema elements.

Zero-downtime migrations for business apps require strict adherence to expand/contract workflows, meaning certain schema changes cannot be applied in a single step. Complex data transformations need staged backfills, and full rollback capability depends on maintaining backward-compatible TypeScript code throughout the migration window.