YugabyteDB has successfully reused PostgreSQL's native query layer to build its own distributed SQL database, resulting in several key benefits including extreme resilience against failures with native failover/repair, ability to scale writes on-demand through auto sharding/rebalancing, and lower user latency through geographic data distribution. By reusing the PostgreSQL codebase, YugabyteDB can leverage advanced RDBMS features that are well-designed and documented, supporting a wide range of features such as expression-based indexes, partial indexes, table functions, stored procedures, triggers, user-defined types, temporary tables, row level security, column level privileges, and PostgreSQL extensions. Additionally, YugabyteDB's reuse approach enables the database to maintain high quality through robust regression testing and adherence to the PostgreSQL specification, allowing it to integrate seamlessly with ecosystem tools and frameworks, providing a developer and operations engineering experience similar to Amazon Aurora while remaining fully compatible with PostgreSQL.