scaling

Database routers enable read-write splitting for scaling. I direct reads to replicas and writes to primary. The router examines hints and model to make routing decisions. For read-heavy apps, this distributes load across multiple databases. I use usin

Database routers direct queries to specific databases. I implement db_for_read(), db_for_write(), allow_relation(), and allow_migrate() methods. This enables read replicas, sharding by model, or separating analytics data. The router checks model label