Fabio, while chaining map/reduce views sounds useful, we found it easy to work around it by updating our documents with the derived data. Subsequent views can use that derived information in your documents. This also breaks down your chain into well-defined steps, which you can apply to your documents by iterating over the view / _all_docs and updating them.
If you still think your problem is best solved by chaining them, look at BigCouch Chained MapReduce Views [1] which has a somewhat restricted implementation of what you want by allowing you to save the output of a view as documents into another document (similar as if you were to replicate a view output into a database, something you also can't do with vanilla Apache CouchDB). Gabor [1] http://support.cloudant.com/kb/views/chained-mapreduce-views On Friday, June 10, 2011 at 12:50 PM, Robert Newson wrote: > This feature does not exist in any release of Apache CouchDB to date. > > B. > > On 10 June 2011 11:25, Fabio Di Bernardini <[email protected] > (mailto:[email protected])> wrote: > > I found an old > > mail<http://couchdb-development.1959287.n2.nabble.com/chaining-map-reduce-in-hovercraft-td3028752.html>of > > Chris Anderson about a patch enabling views chaining. > > I don't find other documentations since then. > > > > There are news about views chaining with latest 1.1 release? > > > > Thank you.
