How does Rails handle large-scale CQRS read model optimization strategies?

Rails optimizes CQRS read models by using denormalized projections, caching layers, and event-driven updates.

In CQRS, read and write models are separated. Rails write models handle business logic, while read models are optimized for queries and performance. These read models are often denormalized tables or materialized views updated asynchronously via events. This improves performance at scale but introduces eventual consistency challenges between read and write sides.