弹性搜索：使用弹性搜索生成弹性搜索查询 API

Question

我想知道硬编码查询和通过 API 生成的查询之间的区别？我正在使用弹性搜索 API 来构建查询。我期望的结果查询格式如下。

{
  "query": {
    "bool": {
      "must": [
    {"match": {
      "model": "IBC"
      }
    },{"match": {
      "company.name": "Samsung"
      }
    }
      ]
    }
  }
}

但是我使用 ElasticSearch 查询生成器 API 得到的输出格式如下。我观察到，对于小型数据集，这两个查询获得的结果完全相似。我不确定它对于大型数据集的表现如何。

{
  "size": 100,
  "query": {
    "bool": {
      "must": [
    {
      "match": {
        "company.name": {
          "query": "Samsung",
          "operator": "OR",
          "prefix_length": 0,
          "max_expansions": 50,
          "fuzzy_transpositions": true,
          "lenient": false,
          "zero_terms_query": "NONE",
          "auto_generate_synonyms_phrase_query": true,
          "boost": 1.0
        }
      }
    },
    {
      "match": {
        "model": {
          "query": "IBC",
          "operator": "OR",
          "prefix_length": 0,
          "max_expansions": 50,
          "fuzzy_transpositions": true,
          "lenient": false,
          "zero_terms_query": "NONE",
          "auto_generate_synonyms_phrase_query": true,
          "boost": 1.0
        }
      }
    }
      ],
      "adjust_pure_negative": true,
      "boost": 1.0
    }
  }
}

我为生成查询而编写的代码：

Map<String,String> parametersMap = new HashMap<String,String>();
parametersMap.put("model","IBC");
parametersMap.put("company.name","Samsung");
SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
    BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();

for(String key: parametersMap){
    MatchQueryBuilder matchQueryBuilder = QueryBuilders.matchQuery(key,parametersMap.get(key);
        boolQueryBuilder = boolQueryBuilder.must(matchQueryBuilder);                    
}        
    searchSourceBuilder.size(100).query(boolQueryBuilder);
    String result = searchSourceBuilder.toString();

Answer 1

elasticsearch spring 数据库生成的查询具有 current documentation of the spring-data-elasticsearch and it really depends on what elasticsearch version you are running. If you really want to use a pure query created by you, you can take a look at the Query annotation here

中记录的默认值

这里有一些关于在生成的查询中添加的额外属性的有用文档：

弹性搜索：使用弹性搜索生成弹性搜索查询 API

Elastic Search: Generating Elastic Search query using Elastic search API

java

elasticsearch

elastic-cloud

elasticsearch-high-level-restclient