Bumping this, because I am genuinely interested if there is a better way to do this.
I'd really like to know if there is a better way than executing dummy queries...it feels dirty.
I've seen plenty of extensions not handle query cancellation / exceptions gracefully. Also seems like something to talk about in the docs a little bit, because most extensions/functions that don't handle this well aren't even aware that those issues are there from what i've seen (searching github issues, etc).