ESENT Multivalue tutorial
Multivalued columns can be very useful for simplifying data schema and improving performance, but they can be complex to use (they also make Data Normalization geeks feel uneasy). I put a multi-value tutorial up on the ManagedEsent wiki. It uses the managed APIs but would be easy to translate to unmanaged code.
https://managedesent.codeplex.com/wikipage?title=MultiValueTutorial