ElasticSearch - 仅搜索与搜索响应中的所有顶级字段匹配的嵌套对象

Question

让我说我有以下文件:

{
    id: 1,
    name: "xyz",
    users: [
        {
            name: 'abc',
            surname: 'def'
        },
        {
            name: 'xyz',
            surname: 'wef'
        },
        {
            name: 'defg',
            surname: 'pqr'
        }
    ]
}

我想在搜索响应中仅获取与所有顶级字段匹配的嵌套对象.我的意思是如果我搜索/过滤名为'abc'的用户,我想要低于响应

{
    id: 1,
    name: "xyz",
    users: [
        {
            name: 'abc',
            surname: 'def'
        }
    ]
}

我怎样才能做到这一点？

参考:从elasticsearch中的数组中选择匹配的对象

Answer 1

如果您可以使用除嵌套字段之外的所有根字段,然后只在嵌套字段中匹配内部匹配,那么我们可以通过指定稍微更复杂的源过滤参数来重复使用之前的答案:

{
  "_source": {
    "includes": [ "*" ],
    "excludes": [ "users" ]
  },
  "query": {
    "nested": {
      "path": "users",
      "inner_hits": {        <---- this is where the magic happens
        "_source": [
          "name", "surname"
        ]
      },
      "query": {
        "bool": {
          "must": [
            {
              "term": {
                "users.name": "abc"
              }
            }
          ]
        }
      }
    }
  }
}