PostgreSQL 17: the new features transforming data management

PostgreSQL 17: a major release for businessesThe PostgreSQL community has released version 17, marking a turning point in open source relational database management. This release brings significant improvements in performance, security and advanced capabilities.The key performance improvementsThe new parallel query engine delivers performance gains of 30 to 50% on complex analytical queries. The query optimiser has been redesigned to better handle multiple joins and correlated subqueries. Automatic vacuuming has been improved to reduce fragmentation and maintain consistent performance.Advanced JSON handlingPostgreSQL 17 introduces the standard JSON/SQL type, enabling more efficient manipulation of semi-structured data. The new JSON_TABLE and JSON_QUERY functions simplify extracting data from nested JSON documents.Strengthened securityTransparent data encryption at rest (TDE) is now natively integrated. Row-level security (RLS) policies have been enriched with new conditional operators.Source: Bruce Momjian, lead PostgreSQL contributor, PGConf EU 2025 conference