When Microsoft brought out Query Store, they wrote:
Similar to an airplane’s flight data recorder, Query Store collects and presents detailed historic information about all queries, greatly simplifying performance forensics by reducing the time to diagnose and resolve issues.
It certainly works, making it easier for you to understand when a query’s execution plan suddenly goes downhill, taking your server with it.
But it isn’t enough.
In airplanes, it’s not enough to know that the throttles were powered down and the altitude plummeted. It’s not enough to know what happened: we need to know why it happened. What problem did the team think they were facing? Was there a misunderstanding in the cockpit about a metric? A disagreement between team members about how to solve the problem?
That’s why we need Voice Store.
Just as a cockpit voice recorder helps investigators better understand why decisions were made, SQL Server Management Studio needs a Voice Store to capture what the team was trying to do in the moments leading up to the crash.
To help speed up accident investigations, we simply can’t afford delays. That’s why it’s also important that Voice Store be connected directly to YouTube, automatically uploading recordings to help the community get to the root cause analysis.