Add _random_docs?limit=5

[fabien]

I think it would be useful to be able to retrieve multiple random docs, limited by a certain amount of documents. By default it should probably be just 5 or something, because it could get somewhat inefficient with a high number of docs. Returned docs should be unique. Order could be random too.

Now that I think about it, wouldn't it make sense to be able to get random entries from a view (instead)?

[benoitc]

Ideas of views are interresting, it would speed a lot the thing in some cases where there is a need to filter results.

having something like:

 GET /<db>/_random_doc?filter=_view&view=DName/VName 

would works. Difference with the filter is that you can't change it in real time, but it would be definitly faster.

About the limit, the only efficient way I see to that is pre-generating N randoms number where N < number of docs and return random docs in order. I think it could work.

[benoitc]

the _view filter has been added to last head.