Have you ever seen two nearly identical SQL statements, differing only in date parameters or function variations, return similar results but with wildly different performance, sometimes by factors of 10 or 100? In real-world scenarios, we typically run the `EXPLAIN` statement to examine changes in the execution plan. But what if the execution plan doesn’t […] The post Exploring TiDB Observability: A Journey Through Real-World Case Studies appeared first on TiDB.