Hi and sorry for the spam, I have also found this post which says that it is not possible to do a second map/reduce on the results on a first map/reduce?
http://www.couchbase.com/communities/q-and-a/mapreduce-chain-couchbase Any ideas of how to implement this Thanks On Friday, 27 December 2013 18:05:48 UTC+2, Thomas wrote: > > Hi, > > I was googling around for a solution of a map/reduce where I will be able > to perform a distinct/unique count of user ids, but I wasn't able to find a > concrete solution/answer to this topic. My case is to count the unique > users per day for example as well as other criteria. > > I have for example the following JSON documents of events: > > > {"user":"user1", "color":"blue"} > {"user":"user1", "color":"blue"} > {"user":"user1", "color":"red"} > {"user":"user2", "color":"blue"} > > > And with my map/reduce view I want to do the following > > * number of distinct users per color > > { color: blue, count: 2} > { color: red, count: 1} > > > in SQL terms > > select color, count(distinct user) as users from test group by color > > > Thanks > > > > > -- You received this message because you are subscribed to the Google Groups "Couchbase" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
