Andrey, Great question as I had been struggling with the same. In the docs its kind of buried there but you can post multiple keys to a view. I believe this is what you are looking for. Correct me if I'm wrong. So I'd create a view where the index has item, brand and category and then you can just include a key set for each grouping you want in the post body.
If you look under the table with all the query params in this section of the View docs: http://wiki.apache.org/couchdb/HTTP_view_API#Querying_Options you'll see a that it mentions you can post multiple keys to a view. I'm still learning myself so I'm not sure if you can post complex keys (only simple strings are used). I would assume so since its not stated otherwise but I believe this is what will solve your problem. Ciao! Javi On Feb 22, 2011, at 8:06 PM, Andrey Cherkashin wrote: > Hello, > > I have a problem, I can't understand how to write map function that solves my > problem: > > I have a lot of "documents", each document has type (e.g. item, user), > category and brand. So i have map functions that gives me a list of every > document that has type item (that's easy), but how i can get list of all > documents that has brand == xxx or category == yyy or even > brand==xxx&category=zzz (xxx,yyy,zzz different every time).
