elasticsearch - 如何在查询DSL中匹配名字和名字，然后匹配名字？

Question

我在一个列中为Elasticsearch中的名称编制索引，某些名称只有名字，其他名称是名字和姓氏，我使用过match_phrase，match_phrase_prefix，multi_match但它没有给出正确的结果，因此我可以使用任何嵌套查询如果名字匹配则匹配，然后仅匹配姓氏？

multi_match，match_phrase，match_phrase_prefix

我尝试了match_phrase，match_phrase_prefix查询，

范例1:

输入:詹姆斯。

实际输出: Smith James，David James。

预期输出: James Smith，James，James Thomas等。

范例2:

输入: James Walker。

输出:“Nothing”

预期输出: James

Answer 1

如果您的目的是仅获取名称列表。您可以使用完成提示

以下是我的索引

PUT my_index
{
    "mappings": {
        "properties" : {
            "name" : {
                "type" : "completion"
            }
        }
    }
}

询问

POST my_index/_search?pretty
{
    "suggest": {
        "name-suggest" : {
            "prefix" : "<Search text>",
            "completion" : { 
                "field" : "name" 
            }
        }
    }
}

以下是我的完整文件

"hits" : [
      {
        "_index" : "my_index",
        "_type" : "_doc",
        "_id" : "joqRxGoBW0RKSbIqHqsw",
        "_score" : 1.0,
        "_source" : {
          "name" : "Smith James"
        }
      },
      {
        "_index" : "my_index",
        "_type" : "_doc",
        "_id" : "j4qRxGoBW0RKSbIqP6uW",
        "_score" : 1.0,
        "_source" : {
          "name" : "James Smith"
        }
      },
      {
        "_index" : "my_index",
        "_type" : "_doc",
        "_id" : "kIqRxGoBW0RKSbIqUKvP",
        "_score" : 1.0,
        "_source" : {
          "name" : "James"
        }
      }
    ]
  }

Query:
POST my_index/_search?pretty
{
    "suggest": {
        "name-suggest" : {
            "prefix" : "James",
            "completion" : { 
                "field" : "name" 
            }
        }
    }
}
]

Result:
"suggest" : {
    "name-suggest" : [
      {
        "text" : "James",
        "offset" : 0,
        "length" : 5,
        "options" : [
          {
            "text" : "James",
            "_index" : "my_index",
            "_type" : "_doc",
            "_id" : "kIqRxGoBW0RKSbIqUKvP",
            "_score" : 1.0,
            "_source" : {
              "name" : "James"
            }
          },
          {
            "text" : "James Smith",
            "_index" : "my_index",
            "_type" : "_doc",
            "_id" : "j4qRxGoBW0RKSbIqP6uW",
            "_score" : 1.0,
            "_source" : {
              "name" : "James Smith"
            }
          }
        ]
      }
    ]