How to Master SQLAlchemy I/O: Testing Queries in...

It’s 3:00 AM. Your pager is screaming. The application is completely unresponsive, the database CPU is pegged at 100%, and connection pools are exhausted. Desperate customers with critical systems offline are flooding the support channels. To stop the bleeding, your team scales up to the biggest AWS RDS instance available, literally burning thousands of USD per minute just to keep the lights on. You scramble to find the root cause, expecting a massive infrastructure failure. Instead, you find a