elasticsearch - 在多个条件下查询 Elasticsearch

Question

我在 flex 搜索中有此文件

 {
        "_index" : "master",
        "_type" : "_doc",
        "_id" : "q9IGdXABeXa7ITflapkV",
        "_score" : 0.0,
        "_source" : {
          "customer_acct" : "64876457056",
          "ssn_number" : "123456789",
          "name" : "Julie",
          "city" : "NY"


        }

我想用customer_acct和ssn_number查询主索引，以检索整个文档。我想禁用评分和相关性，我使用了以下查询

 curl -X GET "localhost/master/_search/?pretty" -H 'Content-Type: application/json' -d'
    {
      "query": {
            "term": {
            "customer_acct":  {
             "value":"64876457056"
             }
            } 

          }


    }' 

我还需要在术语查询中包括第二个条件，即ssn_number，我该怎么做？ ，我想关闭评分和相关性，这对Elastic Search是我的新手，我如何在上述尝试的查询中将ssn_number的第二个条件拟合？

Answer 1

首先，您需要定义索引的正确映射。您的customer_acct和ssn_number是数字类型，但您将其存储为字符串。同样查看您的样本，我可以看到您必须使用long来存储它们。然后您就可以在查询中使用过滤器上下文，因为您的结果不需要分数和相关性。阅读official ES doc中的过滤器上下文以及链接中的以下片段，以了解更多信息。

In a filter context, a query clause answers the question “Does this document match this query clause?” The answer is a simple Yes or No — no scores are calculated. Filter context is mostly used for filtering structured data,

，这正是您的用例。

1.索引映射

{
    "mappings": {
        "properties": {
            "customer_acct": {
                "type": "long"
            },
            "ssn_number" :{
                "type": "long"
            },
            "name" : {
                "type": "text"
            },
            "city" :{
                "type": "text"
            }
        }
    }
}

2.索引样本文档

{
    "name": "Smithe John",
    "city": "SF",
    "customer_acct": 64876457065,
    "ssn_number": 123456790
}
{
    "name": "Julie",
    "city": "NY",
    "customer_acct": 64876457056,
    "ssn_number": 123456789
}

3.主要搜索查询过滤不计分

{
    "query": {
        "bool": {
            "filter": [ --> only filter clause
                {
                    "term": {
                        "customer_acct": 64876457056
                    }
                },
                {
                    "term": {
                        "ssn_number": 123456789
                    }
                }
            ]
        }
    }
}

上面的搜索查询给出以下结果:

{
    "took": 186,
    "timed_out": false,
    "_shards": {
        "total": 1,
        "successful": 1,
        "skipped": 0,
        "failed": 0
    },
    "hits": {
        "total": {
            "value": 1,
            "relation": "eq"
        },
        "max_score": 0.0,
        "hits": [
            {
                "_index": "so-master",
                "_type": "_doc",
                "_id": "1",
                "_score": 0.0, --> notice score is 0.
                "_source": {
                    "name": "Smithe John",
                    "city": "SF",
                    "customer_acct": 64876457056,
                    "ssn_number": 123456789
                }
            }
        ]
    }
}