How a Single Missing Index Nearly Tanked Our SaaS Database (and What We Learned)

How a Single Missing Index Nearly Tanked Our SaaS Database (and What We Learned) Imagine the heart-stopping moment: your SaaS application, humming along for months, suddenly grinds to a halt. Latency spikes, requests time out, and customer complaints flood in. We've been there. What we uncovered was a classic, yet often overlooked, culprit: a single missing index. The fallout from this missing database index performance issue was a stark reminder that even the most seasoned teams can trip on the