查询没有子代的cosmos db兄弟姐妹

是否可以查询cosmos db而无需返回子级？我想要以下结果：

[{"groupId":1,"name":"group1"},{"groupId":2,"name":"group2"}]

从以下：

{
    "groups":
    [
        {
            "groupId":1,
            "name":"group1",
            "subgroups":
            [
                {
                    "subGroupId":1,
                    "name":"subgroup1"
                },
                {
                    "subGroupId":2,
                    "name":"subgroup2"
                }
            ]
        },
        {
            "groupId":2,
            "name":"group2",
            "subgroups":
            [
                {
                    "subGroupId":1,
                    "name":"subgroup1"
                },
                {
                    "subGroupId":2,
                    "name":"subgroup2"
                }
            ]
        }
    ]
}

我更喜欢没有触发器的纯选择。