On 21-Nov-2009, at 10:08, Robin Collier wrote:
> That is an interesting concept, correct me if I am wrong, but this sounds
> an awful lot like a view in a relational database. I am not sure if I would
> consider this to be a collection though, it seems to me like another concept
> which would be better called an aggregation node. I guess I would
> distinguish them by defining a collection node as a collection of nodes,
> whereas
> an aggregation node is a collection of items from multiple nodes.
Aggregation nodes don't work when the publisher must define item ids.
-bjc
