Great question!
Jeff Feng

Jeff, that’s great. But what if the visualisation I need is only needed once, i.e., it is an ad-hoc request? Do we have an option to just write a query in the SQL Lab and visualise the resulting set? Rather than materialising the denormalised table on disk, can’t we keep it in-memory (given the result set is less than a threshold value that Superset will decide)?