elasticsearch 弹性搜索：如何搜索以某些字符开头的字符串

我想从弹性搜索中搜索数据，在弹性搜索中，数据从开始的前n个字符开始匹配

下面是我在ES索引中的数据集/数据

{
    "took": 0,
    "timed_out": false,
    "_shards": {
        "total": 5,
        "successful": 5,
        "skipped": 0,
        "failed": 0
    },
    "hits": {
        "total": {
            "value": 47,
            "relation": "eq"
        },
        "max_score": 1,
        "hits": [
            {
                "_index": "search_suggestions",
                "_type": "_doc",
                "_id": "VW5pdGVkIFN0YXRlcw==",
                "_score": 1,
                "_source": {
                    "id": "VW5pdGVkIFN0YXRlcw==",
                    "name": "India",
                    
                }
            },
            {
                "_index": "search_suggestions",
                "_type": "_doc",
                "_id": "RW1iYXNzeSBvZiB0aGUgViwgREMsIFVTQQ==",
                "_score": 1,
                "_source": {
                    "id": "RW1iYXNzeSBvZiB0aGUgViwgREMsIFVTQQ",
                    "name": "Maharashtra, India",
                }
            },
            {
                "_index": "search_suggestions",
                "_type": "_doc",
                "_id": "TWFoaSBCYXpB",
                "_score": 1,
                "_source": {
                    "id": "TWFoaSBCYXpB",
                    "name": "Pune, Maharashtra, India",
                 }
            }
        ]
    }
}

我尝试过使用query/term/prefix/wildcard方法进行搜索。我想查找以“Ind*”开头的名称，但作为响应，它返回的字符串在字符串中的任何位置都匹配。我只希望结果以“Ind*”开头，但结果应该是“India”，而不是其他

---

请建议如何查询ES以获得高于预期的结果。

作为响应，查询返回字符串中任何位置匹配的字符串，因为字符串被分离为单个标记（基于标准分析器）。因此，它将在任何位置匹配包含India的所有文档，而不仅仅是在

name

字段的开头

分析API

{
  "analyzer" : "standard",
  "text" : "Maharashtra, India"
}

生成以下令牌：

{
  "tokens": [
    {
      "token": "maharashtra",
      "start_offset": 0,
      "end_offset": 11,
      "type": "<ALPHANUM>",
      "position": 0
    },
    {
      "token": "india",
      "start_offset": 13,
      "end_offset": 18,
      "type": "<ALPHANUM>",
      "position": 1
    }
  ]
}

搜索查询：

{
  "mappings": {
    "properties": {
      "name": {
        "type": "keyword"
      }
    }
  }
}

{
  "query": {
    "prefix": {
      "name": {
        "value": "Ind"
      }
    }
  }
}

"hits": [
      {
        "_index": "65119778",
        "_type": "_doc",
        "_id": "1",
        "_score": 1.0,
        "_source": {
          "id": "VW5pdGVkIFN0YXRlcw==",
          "name": "India"
        }
      }
    ]

搜索结果：

{
  "mappings": {
    "properties": {
      "name": {
        "type": "keyword"
      }
    }
  }
}

{
  "query": {
    "prefix": {
      "name": {
        "value": "Ind"
      }
    }
  }
}

"hits": [
      {
        "_index": "65119778",
        "_type": "_doc",
        "_id": "1",
        "_score": 1.0,
        "_source": {
          "id": "VW5pdGVkIFN0YXRlcw==",
          "name": "India"
        }
      }
    ]

---

@ChetanNage很高兴这对你有用：）你能接受并投票表决答案吗：）