As the release date of PostgreSQL 19 approaches, it is the perfect time to begin evaluation and planning work to take advantage of the new features.
In this article, we will discuss the improvements and test results introduced with postgres19 for heavily used INSERT and JOIN operations.
Foreign Key Overhead Reduced
Foreign keys introduce additional overhead during high INSERT traffic while maintaining data integrity. With PostgreSQL 19, this overhead is significantly reduced.
In tables where FK control is added, a slowdown of approximately 4.3x is observed in PostgreSQL 18, while this ratio drops to 2.5x in PostgreSQL 19.
JOIN Performance Improvements
PostgreSQL 19 brings significant improvements to the query planner:
The lower one performs better.
Result
Migrating to PostgreSQL 19 without making structural changes on the application side ensures more efficient use of server resources and allows you to handle a heavier load with the same hardware.
You can contact us to evaluate the potential benefits together.
