[{"title":"Hello World","author":"Bob Paul","featured":true,"published":true,"created_at":"2019-01-15 10:27:16.354Z"},{"title":"Hello World","author":"Bob Paul","featured":false,"published":true,"created_at":"2018-01-15 10:27:16.354Z"}]

db.collection.aggregate([{"$facet":{"latest":[{"$sort":{"created_at":-1}}],"featured":[{"$match":{"featured":true}}]}}])