ElasticSearch 组合两个查询的结果集

Question

我在 ElastiSearch 中有以下数据结构。

[{
  "name": "Kapil",
  "age": 32,
  "hobbies": ["Cricket", "Football", "Swimming"]
},
{
  "name": "John",
  "age": 33,
  "hobbies": ["Baseball", "Football", "Swimming"]
},
{
  "name": "Vick",
  "age": 30,
  "hobbies": ["Baseball", "Karate", "Swimming"]
}]

我想按以下顺序从数据中获取所有记录：

1. 获取所有以Football为爱好的用户，并按年龄排序。
2. 获取所有其他用户按年龄降序排序。

所以期待结果按照约翰、卡皮尔和维克的顺序。

我使用下面的查询来获得 #1 的结果。

{
   "size": 500,
   "query": {
     "bool": {
       "must": [
        {
          "match_phrase": {
            "hobbies.keyword": "Football"
          }
        }
       ]
     }
   },
   "sort": [
    {
      "age": {
        "order": "desc"
      }
    }
  ]
}

并在下面用于第 2 点

{
   "size": 500,
   "query": {
     "bool": {
       "must_not": [
        {
          "match_phrase": {
            "hobbies.keyword": "Football"
          }
        }
       ]
     }
   },
   "sort": [
    {
      "age": {
        "order": "desc"
      }
    }
  ]
}

有了上面，我无法维护分页逻辑。它还需要我分别执行这两个查询。有人可以帮助如何实现这一目标吗？

Answer 1

试试这个：

{
    "query": {
        "bool": {
            "must": {
                "match_all": {} <-- retrieve all docs
            },
            "should": { <-- give higher score to docs that match this clause
                "match_phrase": {
                    "hobbies.keyword": "Football"
                }
            }
        }
    },
    "sort": [
        "_score", <-- sort by doc score first
        {
            "age": { <-- when score is equal then sort by age
                "order": "desc"
            }
        }
    ]
}