Aerospike Database is a purpose-built database for applications requiring predictable sub-millisecond access to billions and trillions of objects, storing many terabytes and petabytes of data while maintaining small cluster sizes. Collection Data Types (CDTs) are essential for modeling related objects in one record, allowing transactional semantics across multi-object updates. CDTs include List and Map data types, which can be nested at an arbitrary level, providing a compact tuple form for storing objects as Lists, eliminating bin overhead, and offering direct access to elements by value if the id is stored as the first field. Aerospike's CDTs support performance aspects such as multi-element updates, single, multi, and range selectors, and multiple return types, enabling efficient server-side execution and minimizing data transfer cost. The use of CDTs as containers unlocks advantages toward speed-at-scale, including high-density storage, fast access to related objects, and efficient querying mechanisms like filter expressions and secondary indexes. CDTs are integrated into Aerospike's performance features, including sets, set indexes, multi-op requests, batch requests, transactions, and consistency, making it a suitable choice for applications requiring real-time data processing and scalability.