This manner of detecting duplicates at query time does really match with what field collapsing does. So I suggest you look into that. As far as I know there isn't any function query that does something you have described in your example.
Cheers, Martijn On 23 January 2010 12:31, Peter S <pete...@hotmail.com> wrote: > > Hi, > > > > I wonder if someone might be able to shed some insight into this problem: > > > > Is it possible and/or what is the best/accepted way to achieve deduplication > of documents by field at query-time? > > > > For example: > > Let's say an index contains: > > > > Doc1 > > -------------------- > > host:Host1 > > time:1 Sept 09 > > appname:activePDF > > > > Doc2 > > -------------------- > > host:Host1 > > time:2 Sept 09 > > appname:activePDF > > > > Doc3 > > -------------------- > > host:Host1 > > time:3 Sept 09 > > appname:activePDF > > > > Can a query be constructed that would return only 1 of these Documents based > on appname (doesn't really matter which one)? > > > > i.e.: > > match on host:Host1 > > ignore time > > dedupe on appname:activePDF > > > > Is this possible? Would FunctionQuery be helpful here, maybe? Am I actually > talking about field collapsing? > > > > Many thanks, > > Peter > > > > _________________________________________________________________ > Got a cool Hotmail story? Tell us now > http://clk.atdmt.com/UKM/go/195013117/direct/01/ -- Met vriendelijke groet, Martijn van Groningen
