database - 如何使用查询匹配AND而不是逗号？

Question

我有3列“为什么，目标，费率，相似”。这是一种推荐系统。目标是“A酒店”，类似于“B酒店，C酒店”，这是原因。如果“为什么”列包含“Antalya，Kum Plaj”，当您查看下图时，我的结果必须像“Antalya AND Kum Plaj”一样包含“Antalya，Kum Plaj”，您可以看到“Antalya，Kum Plaj”作为“安塔利亚或库姆普拉”。
我尝试了2个查询，但它们均无法正常工作。
我的第一个查询:

    {
  "query": {
    "bool": {
      "must": [
        {
          "range": {
            "rate": {
              "gte": 0.7,
              "lte": 1,
              "boost": 2.0
            }
          }
        },
        {
          "term": {
            "target.keyword": "Robinson Club Nobilis"
          }
        },
        {
          "match": {
            "why": "Antalya,Kum Plaj"
          }
        }
      ]
    }
    
  }
}

第二个查询:

    POST /hotelsimilaritydeneme*/_search
{
   "query":{
      "multi_match" : {
         "query": "(Kum Plaj AND Antalya) and Not why.keyword : '' and target.keyword :'Design Plus Seya Beach'  and rate >= 0.6",
         "fields": [ "why","target","rate"]
      }
   }
}

我并不感到困惑，但是结果应该包括“Kum plaj，Antalya”。但是某些结果只有“kum plaj”总和结果“Antalya”，当然还有另一个酒店特色。但是“Kum Plaj，Antalya”应该工作为“Kum Plaj AND Antalya”，而不是“Kum Plaj Or Antalya”
这是我的映射:

{
  "mapping": {
    "object": {
      "properties": {
        "rate": {
          "type": "float"
        },
        "similarTo": {
          "type": "text",
          "fields": {
            "keyword": {
              "type": "keyword",
              "ignore_above": 256
            }
          }
        },
        "target": {
          "type": "text",
          "fields": {
            "keyword": {
              "type": "keyword",
              "ignore_above": 256
            }
          }
        },
        "why": {
          "type": "text",
          "fields": {
            "keyword": {
              "type": "keyword",
              "ignore_above": 256
            }
          }
        }
      }
    }
  }
}

我的样本数据:

{
  "took": 98,
  "timed_out": false,
  "_shards": {
    "total": 5,
    "successful": 5,
    "skipped": 0,
    "failed": 0
  },
  "hits": {
    "total": 17,
    "max_score": 10.760553,
    "hits": [
      {
        "_index": "xxx-2020",
        "_type": "object",
        "_id": "nuy9cnMBwlYcZ3X2cH4o",
        "_score": 10.760553,
        "_source": {
          "target": "Robinson Club Nobilis",
          "similarTo": "Crystal Waterworld Resort & Spa",
          "rate": 0.75,
          "why": "Diyet Büfesi,Kum Plaj,Antalya"
        }
      },
      {
        "_index": "xxx-2020",
        "_type": "object",
        "_id": "yuy9cnMBwlYcZ3X2cH4o",
        "_score": 10.760553,
        "_source": {
          "target": "Robinson Club Nobilis",
          "similarTo": "Crystal Sunset Luxury Resort & Spa",
          "rate": 0.75,
          "why": "Diyet Büfesi,Kum Plaj,Antalya"
        }
      }]
      }
}

Answer 1

它按照映射工作。因为text使用standard分析器。因此，您的条款将被标记为

{
    "tokens": [
        {
            "token": "kum",
            "start_offset": 0,
            "end_offset": 3,
            "type": "<ALPHANUM>",
            "position": 0
        },
        {
            "token": "plaj",
            "start_offset": 4,
            "end_offset": 8,
            "type": "<ALPHANUM>",
            "position": 1
        },
        {
            "token": "antalya",
            "start_offset": 9,
            "end_offset": 16,
            "type": "<ALPHANUM>",
            "position": 2
        }
    ]
}

因此，仅 Antalya文档是结果的一部分。
为避免这种情况，您需要更改映射。
我建议您使用逗号分隔的 patternTokenizer和 standard filter
要实现相同的映射:

{
  "query":{
    "query_string":{
      "fields":["why"],
      "query": "Kum Plaj, Antalya",
      "default_operator":"and"
    }
  }
}

文件-输出:

"hits": [
      {
        "_index": "similar",
        "_type": "_doc",
        "_id": "aafzvXMBoP4Sw8kfTdzk",
        "_score": 0.7161402,
        "_source": {
          "target": "Robinson Club Nobilis",
          "similarTo": "Crystal Waterworld Resort & Spa",
          "rate": 0.75,
          "why": "Diyet Büfesi,Kum Plaj,Antalya"
        }
      },
      {
        "_index": "similar",
        "_type": "_doc",
        "_id": "aqfzvXMBoP4Sw8kfctxi",
        "_score": 0.7161402,
        "_source": {
          "target": "Robinson Club Nobilis",
          "similarTo": "Crystal Sunset Luxury Resort & Spa",
          "rate": 0.75,
          "why": "Diyet Büfesi,Kum Plaj,Antalya"
        }
      }
    ]

输入文档:

"hits": [
      {
        "_index": "similar",
        "_type": "_doc",
        "_id": "aafzvXMBoP4Sw8kfTdzk",
        "_score": 1.0,
        "_source": {
          "target": "Robinson Club Nobilis",
          "similarTo": "Crystal Waterworld Resort & Spa",
          "rate": 0.75,
          "why": "Diyet Büfesi,Kum Plaj,Antalya"
        }
      },
      {
        "_index": "similar",
        "_type": "_doc",
        "_id": "aqfzvXMBoP4Sw8kfctxi",
        "_score": 1.0,
        "_source": {
          "target": "Robinson Club Nobilis",
          "similarTo": "Crystal Sunset Luxury Resort & Spa",
          "rate": 0.75,
          "why": "Diyet Büfesi,Kum Plaj,Antalya"
        }
      },
      {
        "_index": "similar",
        "_type": "_doc",
        "_id": "a6f1vXMBoP4Sw8kfrNyB",
        "_score": 1.0,
        "_source": {
          "target": "Robinson Club Nobilis",
          "similarTo": "Crystal Sunset Luxury Resort & Spa",
          "rate": 0.75,
          "why": "Diyet Büfesi,Kum Plaj"
        }
      }
    ]