Implementing Native Composite Primary Key Support in Rails 7.1

Explore the new feature of composite primary keys in Rails 7.1! @shopify developer and member of the Rails triage team Nikita Vasilevsky provides a thorough understanding of composite primary keys, the significance of the “ID” concept in Rails, and the crucial role of the “query constraints” feature in making this powerful feature work seamlessly.

Slides are available at


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Rails World 2023