Hello, I've examined couple of articles about schema design for Riak, but none of them cover the sorting topic.
I have the following use case - a bucket holds a series of blog posts and I need to retrieve the 5 most recent ones. In relational world I would just sort on the "created" field, in the nosql world I'll use map/reduce. So, using a naive map/reduce function I will map the document's creation date and then sort by it. But this will scan the whole bucket and probably will be a very expensive operation. What will be a recommended solution for Riak? Thanks, Nickolay
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