如何在Elasticsearch中搜索数组的多个字段

Nons 发表于 Dev

非斯

我在弹性搜索中有一个索引叫做 professor

如果对于交叉场，我需要“与”条件
对于相同的字段数组，我需要进行OR条件

我需要搜索subject是Physics或Accounting这是fields（OR）语句的数组

和
我需要搜索type是Permanent或GUEST条件这是fields（OR）语句的数组

和
我需要搜索的Location是NY（＆）条件

test = [{'id':1,'name': 'A','subject': ['Maths','Accounting'],'type':'Contract', 'Location':'NY'},
      { 'id':2,'name': 'AB','subject': ['Physics','Engineering'],'type':'Permanent','Location':'NY'},
    {'id':3,'name': 'ABC','subject': ['Maths','Engineering'],'type':'Permanent','Location':'NY'},
{'id':4,'name':'ABCD','subject': ['Physics','Engineering'],'type':['Contract','Guest'],'Location':'NY'}]

查询如下，第三个得到它，如何添加 1 and 2

content_search = es.search(index="professor", body={
    "query": {
    "bool": {
      "must": {
        "match_all": {}
      },
      "filter": [
        {
          "term": {
            "Location.keyword": "NY"
          }
        }
      ]
    }
  }
})
content_search ['hits']['hits']

预期是id [{ 'id':2,'name': 'AB','subject': ['Physics','Engineering'],'type':'Permanent','Location':'NY'},{'id':4,'name':'ABCD','subject': ['Physics','Engineering'],'type':['Contract','Guest'],'Location':'NY'}]

ESCoder

filter子句（查询）必须出现在匹配的文档中。但是，与查询分数不同的是，忽略该分数。Filter子句在过滤器上下文中执行，这意味着计分被忽略，并且子句被视为用于缓存。

请仔细阅读有关bool查询的Elasticsearch文档，以获取详细的了解。

添加带有索引数据（与所讨论的数据相同），搜索查询和搜索结果的工作示例

搜索查询：

{
  "query": {
    "bool": {
      "must": {
        "match": {
          "Location.keyword": "NY"
        }
      },
      "filter": [
        {
          "bool": {
            "should": [
              {
                "match": {
                  "subject.keyword": "Accounting"
                }
              },
              {
                "match": {
                  "subject.keyword": "Physics"
                }
              }
            ]
          }
        },
        {
          "bool": {
            "should": [
              {
                "match": {
                   "type.keyword": "Permanent"
                }
              },
              {
                "match": {
                  "type.keyword": "Guest"
                }
              }
            ]
          }
        }
      ]
    }
  }
}

搜索结果：

"hits": [
      {
        "_index": "stof_64370980",
        "_type": "_doc",
        "_id": "2",
        "_score": 0.10536051,
        "_source": {
          "id": 2,
          "name": "AB",
          "subject": [
            "Physics",
            "Engineering"
          ],
          "type": "Permanent",
          "Location": "NY"
        }
      },
      {
        "_index": "stof_64370980",
        "_type": "_doc",
        "_id": "4",
        "_score": 0.10536051,
        "_source": {
          "id": 4,
          "name": "ABCD",
          "subject": [
            "Physics",
            "Engineering"
          ],
          "type": [
            "Contract",
            "Guest"
          ],
          "Location": "NY"
        }
      }
    ]

另一个搜索查询：

您甚至可以使用术语查询来返回在提供的字段中包含一个或多个确切术语的文档。术语查询与术语查询相同，只是可以搜索多个值。

{
  "query": {
    "bool": {
      "must": [
        {
          "terms": {
            "subject.keyword": [
              "Physics",
              "Accounting"
            ]
          }
        },
        {
          "terms": {
            "type.keyword": [
              "Guest",
              "Permanent"
            ]
          }
        },
        {
          "match": {
            "Location.keyword": "NY"
          }
        }
      ]
    }
  }
}

更新1：

{
  "query": {
    "bool": {
      "must": [
        {
          "terms": {
            "subject.keyword": [
              "Physics",
              "Accounting"
            ]
          }
        },
        {
          "terms": {
            "type.keyword": [
              "Guest",
              "Permanent"
            ]
          }
        },
        {
          "match": {
            "Location.keyword": "NY"
          }
        },
        {
          "query_string": {
            "query": "ABCD"
          }
        }
      ]
    }
  }
}

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