convex-migrations

To add a required field to a Convex database without downtime, first define it as optional, run a backfill mutation to populate existing records with default values, and then enforce it as required. This schema migration strategy ensures data integrity during evolution.

The best way to backfill data in Convex tables is by implementing dedicated backfill mutations. These mutations safely populate newly added optional fields with default values or computed data for existing records before making the fields required.

Yes, you can safely remove or rename deprecated fields in a Convex schema by following zero-downtime migration patterns. This involves incrementally updating your schema evolution strategy to ensure application stability and prevent data loss.

Convex supports zero-downtime migrations for safe field type changes by utilizing optional fields and backfilling data. This approach allows you to apply schema changes without interrupting active service or corrupting existing data.

You need to manage indexes during Convex database migrations when adding new fields that require improved query performance. Safely adding and utilizing new indexes ensures your queries remain efficient as your schema evolves.