Nice idea. I'd recommend adding some kind of visual indicator when it's in a loading state - at first I thought it wasn't working but it was just slow to respond (probably because it's close to the top of HN right now...)
The loading indicator is also on the list, TBH was supposed to go up before ShowHN, but I forgot. And yeah, now the query execution wait time for my measly 2-core postgres instance is about 30 seconds :D.
