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Michael S. Klishin 2012-05-28 00:48:24 +04:00
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ChangeLog.md
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@ -5,6 +5,10 @@
`monger.collection/aggregate` provides a convenient way to run [aggregation queries](http://docs.mongodb.org/manual/reference/aggregation/). `monger.collection/aggregate` provides a convenient way to run [aggregation queries](http://docs.mongodb.org/manual/reference/aggregation/).
``` clojure ``` clojure
(ns my.service
(:require [monger.collection :as mc])
(:use monger.operators))
;; single stage pipeline ;; single stage pipeline
(mc/aggregate "docs" [{$project {:subtotal {$multiply ["$quantity", "$price"]} (mc/aggregate "docs" [{$project {:subtotal {$multiply ["$quantity", "$price"]}
:_id "$state"}}]) :_id "$state"}}])