A Look At MongoDB 1.8's MapReduce Changes(blog.evilmonkeylabs.com)
blog.evilmonkeylabs.com
A Look At MongoDB 1.8's MapReduce Changes
http://blog.evilmonkeylabs.com/2011/01/27/MongoDB-1_8-MapReduce/
1 comments
This is a welcome set of changes. It looks like with some clever programming you can finally map reduce across collections which was a huge limitation before.