Re: multi-level views

[Justin Balthrop]

In one case, we need to take the combined documents and sort them by  
certain metrics (e.g. popularity). There are millions of documents, so  
this isn't practical in the client code.

Our specific use case isn't incredibly important, because multi-level
map-reduce could be useful in countless ways, but I'll include it  
anyway
just as illustration. The specific need for us arose from the  
desire to
slice up certain very large documents to make concurrent editing by  
a huge
number of users feasible. Then we started to use a view step to  
combine the
data back into whole documents. This worked really well at first,  
but we
soon found that we needed to run additional queries on those  
documents. So
we were stuck with either:

Hey there,

Would you mind explaining what those additional queries are?

Stephan