Reformatted excerpts from Rich Lane's message of 2009-09-10:
> I thought it was, but it turns out that unless you explicitly add AND
> operators Xapian will OR terms over the same field such that
> "label:foo label:bar" gives you the union instead of the intersection.

Ok. I only ask because I'm considering how to present the Xapian index
option in 0.9---the options are to not say anything about it, to force
everyone to switch to it, or anywhere in between. 

> We could fix this by patching Xapian to make this behavior
> configurable, or we could come up with an index-agnostic simple query
> language that doesn't support boolean operators.

The former sounds easier to me. Especially since it seems like this is
something Xapian should have...
-- 
William <wmorgan-...@masanjin.net>
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