On Tue, May 18, 2010 at 5:52 AM, Kropp, Henning <hkr...@microlution.de>wrote:
> Hi, > > as far as I know working with map reduce commonly involves multiple map > and reduce stages. A view in couchdb solely consists of one map and if > necessary one reduce stage!? > actually it does a Reduce stage on each bucket of results from the b-tree and then a re-reduce phase on all the results of the b-tree bucket results. Your reduce function has to handle the initial reduce and the re-reduce possibility as well. Personally I wish there were two functions one for reduce and one for re-reduce, it would get make things clearer and easier to manage as having to manage reducing the view results AND the reduced results which may be a completely different data structure can be really confusing and error prone in the maintenance phase of a project. -- Jarrod Roberson
