AI BriefingPostgreSQL 18 on Amazon Aurora and Amazon RDS: Performance Improvements
Key point
PostgreSQL 18 significantly improves query performance and management efficiency through skip scan optimization and enhanced EXPLAIN features.
Details
PostgreSQL 18 focuses on managing composite index performance and resolving the performance degradation issues that occur during major version upgrades. Key improvements include the introduction of skip scan optimization, which allows multi-column B-tree indexes to be used efficiently even when the leading column is not included in the query.
In addition, the EXPLAIN feature has been enhanced to more clearly reveal storage behavior, and a feature has been added to automatically eliminate unnecessary self-joins. The vacuum and autovacuum processes have also been improved to increase database operational efficiency.
These features are immediately available on Amazon Aurora PostgreSQL-compatible versions and Amazon RDS for PostgreSQL.
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