Mongodb内嵌数组的完全匹配查询

样例数据:


    "cNo" : "11",
    "Details" : [
        {
             "dDate" : ISODate("2017-04-01T00:00:00.000+0800"),
             "bNo" : "No00000000497"
        },
        {
             "dDate" : ISODate("2017-05-01T00:00:00.000+0800"),
             "bNo" : "No00000000497"
        },
        {
            "dDate" : ISODate("2017-06-01T00:00:00.000+0800"),
             "bNo" : "No00000000497"
        }
    ]
}
{
    "cNo" : "12",    
    "Details" : [
        {
            "dDate" : ISODate("2017-04-01T00:00:00.000+0800"),
            "bNo" : "No00000000497"
        },
        {
            "dDate" : ISODate("2017-05-01T00:00:00.000+0800"),
            "bNo" : "No00000000497"
        },
        {
            "dDate" : ISODate("2017-06-01T00:00:00.000+0800"),
            "bNo" : "No00000000500"
        }
    ]
}

    "cNo" : "13",
    "Details" : [
        {
            "dDate" : ISODate("2017-04-01T00:00:00.000+0800"),
            "bNo" : "No00000000497"
        },
        {
            "dDate" : ISODate("2017-05-01T00:00:00.000+0800"),
            "bNo" : "No00000000497"
        },
         {
            "dDate" : ISODate("2017-06-01T00:00:00.000+0800"),
            "bNo" : "No00000000497"
        }
    ]
}

查询条件:dDate等于2017-06-01,且bNo等于No00000000497的数据

正确查询语句:{Details:{ $elemMatch:{ "bNo":"No00000000497","dDate":  ISODate("2017-10-01T00:00:00.000+0800") } }}

查询结果:11、13

(非完全匹配/错误)查询语句:{"Details.bNo":"No00000000497","Details.dDate":ISODate("2017-10-01T00:00:00.000+0800")}

查询结果:11、12、13

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