(Inspired by OpenAI’s PostgreSQL scale challenges) When OpenAI shared their engineering journey of scaling PostgreSQL to support massive workloads, one insight quietly stood out: It’s also common to find long-running idle queries in PostgreSQL. Configuring timeouts like idle_in_transaction_session_timeout is essential to prevent them from blocking autovacuum. At first glance, this might sound like a small operational detail. But in reality, it points to a much bigger truth ab