"If you want to get determinism or the performance is a thing that you're worried about, yeah, you can always cash," he says. "But at the same time, run it once, see the answers that it gives you, comment that business out and just like put that as markdown." You don't need to ask it over and over what columns have PII because they've already been answered by sketch. He adds: "You look smarter if you don't have to show how you get the answers"