如何在Elasticsearch中实现区分大小写的搜索？ [英] How to implement case sensitive search in elasticsearch?

问题描述

我的索引文档中有一个字段，我需要在区分大小写的情况下进行搜索。我正在使用匹配查询来获取结果。
我的数据文档的示例是：

I have a field in my indexed documents where i need to search with case being sensitive. I am using the match query to fetch the results. An example of my data document is :

{
"name" : "binoy",
"age" : 26,
"country": "India"
}

现在，当我给出以下查询时：

Now when I give the following query:

{
"query" : {
"match" : {
"name" : "Binoy"
}
}
}

它为我提供了 binoy与 Binoy的匹配项。我希望搜索区分大小写，默认情况下，elasticsearch似乎不区分大小写。

It gives me a match for "binoy" against "Binoy". I want the search to be case sensitive. It seems by default,elasticsearch seems to go with case being insensitive. How to make the search case sensitive in elasticsearch?

推荐答案

在映射中，您可以将字段定义为not_analyzed。

In the mapping you can define the field as not_analyzed.

curl -X PUT "http://localhost:9200/sample" -d '{
  "index": {
    "number_of_shards": 1,
    "number_of_replicas": 1
  }
}'

echo
curl -X PUT "http://localhost:9200/sample/data/_mapping" -d '{
  "data": {
    "properties": {
      "name": {
        "type": "string",
        "index": "not_analyzed"
      }
    }
  }
}'

现在，如果您可以执行常规索引并进行常规搜索，它将不会对其进行分析并确保其提供不区分大小写的搜索。

Now if you can do normal index and do normal search , it wont analyze it and make sure it deliver case insensitive search.

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