如何提高弹性搜索中的索引类型？ [英] How to boost index type in elasticsearch?

问题描述

我曾经像这样搜索：
curl -XGET localhost：9200 / users / _search

但用户包含用户a，b，c，如下所示：
curl -XGET localhost：9200 / users / a，b，c / _search

but users contains user a,b,c like this: curl -XGET localhost:9200/users/a,b,c/_search

用户是第一个索引， a / b / c 请输入

users is the first index, a/b/c is type.

如何在此查询中提升类型 a ？

How to boost type a in this query? Best with sample code, thanks.

推荐答案

您可以使用术语查询来提升索引类型。

You can boost index types using terms query.

首先创建一些测试数据（e1，e2，e3是类型，测试是索引名称）：

First Create some test data (e1,e2,e3 are types and test is the index name):

PUT test/e1/1
{
  "subject": "subject 1"
}
PUT test/e2/1
{
  "subject": "subject 1"
}
PUT test/e3/1
{
  "subject": "subject 1"
}

现在使用按类型定制提升的术语查询：

Now using term query with custom boost by type:

GET test/_search
{
  "query": {
    "bool": {
      "should": [
        {
         "query_string": {
           "query": "subject"
         }
        },
        { "term" : { "_type" : {"value" : "e3", "boost" : 2.0} } },
        { "term" : { "_type" : {"value" : "e2", "boost" : 3.0} } }
      ]
    }
  }
}

其中将生成如下结果：

{
   "took": 1,
   "timed_out": false,
   "_shards": {
      "total": 1,
      "successful": 1,
      "failed": 0
   },
   "hits": {
      "total": 3,
      "max_score": 0.7671045,
      "hits": [
         {
            "_index": "test",
            "_type": "e2",
            "_id": "1",
            "_score": 0.7671045,
            "_source": {
               "subject": "subject 1"
            }
         },
         {
            "_index": "test",
            "_type": "e3",
            "_id": "1",
            "_score": 0.59740055,
            "_source": {
               "subject": "subject 1"
            }
         },
         {
            "_index": "test",
            "_type": "e1",
            "_id": "1",
            "_score": 0.1289963,
            "_source": {
               "subject": "subject 1"
            }
         }
      ]
   }
}

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