find threads where I and Jian participated but not Dave

[David Bremner]

Xu Wang <xuwang762 at gmail.com> writes:

> I bump this. Actually more simple than that, how to search for thread
> in which I have participated and Jian has participated? Excluding
> threads in which Dave participated is perhaps more complicated.

I don't know of an efficient way to do this. You could write a script
something like

notmuch search --output=threads from:Xu  > A
notmuch search --output=threads from:Jian  > B
comm -12 A B

I think the output is sorted, but you might also have to sort A and B