If it's slower, then use a simpler query or come up with a way to improve the back-end search speed (which you did, it looks like). My point is that novice dev

If it's slower, then use a simpler query or come up with a way to improve the back-end search speed (which you did, it looks like). My point is that novice developers don't usually work with that size of data. And if they are working with that size of data, then both regex and performance are good things for them to learn :)