小编Fra*_*sco的帖子

我有这部分的收藏：

[{
  "_id": ObjectId("604f3ae3194f2135b0ade569"),
  "parameters": [
    {
      "_id": ObjectId("602b7455f4b4bf5b41662ec1"),
      "name": "Purpose",
      "options": [
        {
          "id": ObjectId("602b764ff4b4bf5b41662ec2"),
          "name": "debug",
          "sel": true
        },
        {
          "id": ObjectId("602b767df4b4bf5b41662ec3"),
          "name": "performance",
          "sel": false
        },
        {
          "id": ObjectId("602b764ff4b4bf5b41662ec4"),
          "name": "security",
          "sel": true
        },
        {
          "id": ObjectId("602b767df4b4bf5b41662ec5"),
          "name": "Not Applicable",
          "sel": false
        }
      ],
      "type": "multiple"
    }]
}]

这个查询：

db.testCollection.aggregate([
    { $unwind: "$parameters" },
    {
        $match: {
            "parameters._id": ObjectId("602b7455f4b4bf5b41662ec1"),
        }
    },
    {
        $addFields: {
            match: {
                $filter: {
                    input: "$parameters.options",
                    as: "option",
                    cond: {
                        $and: [
                           { …