mongodb查询只显示指定字段

db.COMMODITY_COMMODITY.find(

        {

            "areaCode" : "320100" ,

            "backCatalogId" : { "$in" : [ 111111, 22222]} ,

            "typeCode" : { "$in" : [ "appointment" , "groupon"]} ,

            "status" : "1" ,

            "name" : { "$regex" : "汽车"}

        },{"backCatalogId":true,"_id":0}

)

 

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