On Tue, Dec 04, 2018 at 09:08:11AM -0800, Yu-cheng Yu wrote: > Then we will do this very often. Why don't we create all three in the > beginning: xfeatures_mask_all, xfeatures_mask_user, and xfeatures_mask_system? Because the _all thing is the OR-ed product of the two and then you don't have to update it when the _user and the _system ones change because you'll be creating it on the fly each time. -- Regards/Gruss, Boris. Good mailing practices for 400: avoid top-posting and trim the reply.