Routing Reads in PostgreSQL: Why Application Logic Beats pgpool Configuration
While a pgpool parameter may exist to handle statement routing, relying on it is fragile. The core issue: you must pre-configure pgpool with detailed application knowledge, and any omission or subsequent code change can silently break routing behavior.
The stronger engineering approach is embedding the routing decision directly within the application layer. This placement keeps the logic maintainable and immediately synced with every code revision, eliminating the risk of configuration drift between the database pooler and the actual application code.
