在ElasticSearch中使用must和should

Question

我有以下格式的数据：

{
   "name": "a school",
   "type": "school", // Either school, university or dorm
   "city": "Konya",
   "district": "Selçuklu",
   "dorm_type": null,
   "dorm_gender": null,
   "school_type": "private", // Either public or private or mix
   "uni_type": null,
},
{
   "name": "some univeristy",
   "type": "university", // Either school, university or dorm
   "city": "Istanbul",
   "district": "Besiktas",
   "dorm_type": null,
   "dorm_gender": null,
   "school_type": "null", 
   "uni_type": "private", // Either public or private
},
{
   "name": "some dormitory",
   "type": "dormitory", // Either school, university or dormitory
   "city": "Istanbul",
   "district": "Besiktas",
   "dorm_type": "private", // Either public or private
   "dorm_gender": "boys", // Either boys or girls
   "school_type": "null", 
   "uni_type": "null", 
}

{
  "size": 500,
  "from": 0,
  "query": {
    "bool": {
      "must": [
        {
          "query_string": {
            "query": "`*q*`",
            "fields": [
              "name"
            ]
          }
        },
        {
          "match": {
            "city": "Istanbul"
          }
        },
        {
          "match": {
            "district": "Beşiktaş"
          }
        },
        {
          "bool": {
            "should": [
              {
                "match": {
                  "dorm_type": "public"
                }
              },
              {
                "match": {
                  "dorm_gender": "boys"
                }
              },
              {
                "match": {
                  "school_type": "private"
                }
              },
              {
                "match": {
                  "uni_type": "public"
                }
              }
            ]
          }
        }
      ]
    }
  }
}

如果我希望搜索显示一项或多项过滤，我的查询是否正确？ 该查询只是一个示例。我尝试同时使用 must 和 should，因为 must 表示 AND，并且这对于显示城市或地区是有效的。但对于学校、大学和宿舍类型和性别，您只填写其中一项，其他为空。例如，我可能会搜索仅显示公立大学或可能显示公立大学和公共宿舍。 我有点困惑。

Answer 1

必须和应该是 AND

• 查询必须是 AND
• 查询应该是 OR