Ryan Booz: Postgres in Production Special Series: Diagnosing High Cardinality Workloads in pg_stat_statements (Part 6)

In Part 6 of this special deep dive series, Ryan Booz shows how to tell if you have a high cardinality workload: where unique queries come from (ORMs, dynamic SQL, AI-assisted tools), a Postgres 17 vs 18 comparison using the Bluebox sample database, and five checks to diagnose whether pg_stat_statements is losing the data you need.