convex-migrations

Zero-downtime Convex schema migrations are executed using a migration runner pattern that processes records in batches. This approach tracks progress and handles failures gracefully to evolve live database schemas without service interruption.

The best way to backfill existing documents in batches is using the migration runner pattern provided. It safely adds new fields and populates existing records in controlled batches to avoid downtime and prevent system overload.

Yes, you can remove or rename deprecated fields without breaking code by applying the established migration patterns. The runner ensures field changes are applied safely across all live documents while maintaining application compatibility.

Batched processing handles Convex backfills by tracking migration progress and managing error handling gracefully. This ensures that any failures during the document update process are caught without halting the entire deployment migration.

You need a migration runner pattern to create indexes when optimizing queries for new fields in a live Convex deployment. It ensures index migrations are applied safely across the database without causing downtime or performance degradation.