I'm supposed to be able to register new / changes knitr engines using:
knitr::knit_engines$set(sql = function(options) {
stop("At least I'm being used")
NULL
})
but when I use this in an RStudio notebook, my "special" sql engine isn't getting invoked, it's still calling the "default" one.
What's the magic for getting this to work under RStudio?
