Transactional Database Layer Adds ACID to Distributed Key/Value Storage

The patent segments the database system into a distributed key/value store layer (providing scalability) and a transactional database layer (providing ACID compliance). The transactional layer sits above the key/value store and manages transactions across multiple keys and accounts, while the key/value store handles scalable data storage. This segmentation allows each layer to optimize for its specific function without compromising the other.

The patent adds a new dimension to the data model by introducing accounts as a hierarchical layer above individual keys. This allows queries to be isolated at the account level while maintaining the scalable key/value store underneath. Multiple indexes can be created on different fields within accounts without affecting the underlying storage structure, enabling versatile querying while preserving scalability.

The patent introduces an intermediary transactional database layer that mediates between the application and the distributed key/value store. This intermediary layer implements ACID transaction protocols, manages multiple indexes, and provides query isolation, while the underlying key/value store maintains its scalable architecture. The intermediary translates high-level transactional operations into low-level key/value operations.