Advanced PostgreSQL: JSONB, partial indexes and partitioning

PostgreSQL performance improved by 96% using JSONB, partial indexes, and partitioning techniques. This is achieved by understanding PostgreSQL's inner workings and applying four key levers. JSONB is recommended over JSON due to its indexability and faster read times. It's essential to use JSONB for variable data that's rarely filtered directly and typed columns for frequently filtered fields. This approach can significantly reduce query execution times from 4 seconds to 12 ms.