New capabilities include pg_stat_autovacuum_scores for monitoring autovacuum priorities and parallel autovacuum workers to speed maintenance on large tables. The pg_plan_advice module allows locking efficient query plans for improved consistency.
Eager aggregation optimizes analytical queries by reducing rows processed early. This beta release also contains bug fixes and stability improvements from previous testing, providing users an advance look at upcoming PostgreSQL features in a managed environment.
Source & further reading
PostgreSQL 19 Beta 3 is now available in Amazon RDS Database Preview Environment ↗Source published 2026-08-18. This report was prepared with AI assistance from the linked primary-source material. Claims and limitations should be checked against the original announcement or research.