David Bremner writes on juni 15, 2017 22:20: > Daniel Kahn Gillmor <dkg@fifthhorseman.net> writes: > >> >> One of my long-standing wishes is to be able to say "show me mails in my >> inbox from people who have replied to messages i've sent them". >> >> This could be re-framed as "show me threads in which i've participated, >> where there are some messages flagged with 'inbox'". but generating a >> huge list of all threads in which i've participated, just to be able to >> do an intersection operation with a (much smaller) list of all threads >> that have a message with the inbox flag seems like a pretty gross >> inefficiency. > > At the moment the best we could do is essentially the same algorithm, > but in C instead of shell / python. Threads are not documents in the > database, so they can't efficiently be searched for. Of course we could > change that, but those kind of changes take a fair amount of effort, and > some careful design work. There are probably multiple earlier references to this, but here's one: id:1471858269.x2m28lgosh.astroid@strange matching against the whole thread vs the individual messages would be very useful! Regards, Gaute