Question

I want to save the aggregation framework result to a new collection.
I know that’s impossible with the framework at the moment with the command itself.

Is there a workaround in the shell?

Answer 1

Update: See Salvador’s answer for a more efficient way to do this in MongoDB 2.6+.

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Save the aggregation result in a variable and then insert its result property into a new collection:

var result = db.foo.aggregate(...);
db.bar.insert(result.result);