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db.collection.aggregate([{$match:{$and:[{product_name:"Bottle"},{account_name:"mrfsahas1234"},{action_type:"purchase"},{uid:"2019-11-20T17:39:17.405Z"}]}},{$group:{_id:{sellingId:"$sellingId",PurchaseQuantity:{$sum:"$product_quantity"}}}},{$replaceRoot:{newRoot:{_id:"$_id.sellingId",PurchaseQuantity:"$_id.PurchaseQuantity"}}}])