Did you consider using wiredtiger? Le lun. 19 nov. 2018 à 11:47, Danny Milosavljevic a écrit : > Hi Ludo, > > >It doesn’t seem to help much, perhaps because the query is too complex? > > Yeah, probably. > > According to the docs a log message is supposed to appear when it is doing > it. > > We should just special-case the common queries so the optimizer has a > easier life. >