为什么NEST ElasticClient没有找到文件？

Question

当我使用Kibana向Elasticsearch执行如下Searchrequest时

GET _search
{
  "query": {
    "query_string": {
      "query": "PDB_W2237.docx", 
      "default_operator": "AND"
    }
  }
}

它returns:

{
  "took": 14,
  "timed_out": false,
  "_shards": {
    "total": 15,
    "successful": 15,
    "skipped": 0,
    "failed": 0
  },
  "hits": {
    "total": 1,
    "max_score": 6.3527603,
    "hits": [
      {
        "_index": "proconact",
        "_type": "proconact",
        "_id": "68cecf2c-7e5a-11e5-80fa-000c29bd9450",
        "_score": 6.3527603,
        "_source": {
          "Id": "68cecf2c-7e5a-11e5-80fa-000c29bd9450",
          "ActivityId": "1bad9115-7e5a-11e5-80fa-000c29bd9450",
          "ProjectId": "08938a1d-2429-11e5-80f9-000c29bd9450",
          "Filename": "PDB_W2237.docx"
        }
      }
    ]
  }
}

当我使用 NEST ElasticClient 时

var client = new ElasticClient();
var searchResponse = client.Search<Hit>(new SearchRequest {          
    Query = new QueryStringQuery {
         Query = "DB_W2237.docx",
         DefaultOperator = Operator.And
    }
});

它做了 return 0 次点击。

这是命中中 4 个字段的索引映射：

{
  "proconact": {
    "mappings": {
      "proconact": {
        "properties": {
          "ActivityId": {
            "type": "text",
            "fields": {
              "keyword": {
                "type": "keyword",
                "ignore_above": 256
              }
            }
          },
          "Filename": {
            "type": "text",
            "fields": {
              "keyword": {
                "type": "keyword",
                "ignore_above": 256
              }
            }
          },
          "Id": {
            "type": "text",
            "fields": {
              "keyword": {
                "type": "keyword",
                "ignore_above": 256
              }
            }
          },
          "ProjectId": {
            "type": "text",
            "fields": {
              "keyword": {
                "type": "keyword",
                "ignore_above": 256
              }
            }
          }
        }
      }
    }
  }
}

这两个搜索请求不一样吗？

Answer 1

问题是您的映射不允许使用不同于索引中存在的任何标记。

在您的 kibana 查询中：

GET _search
{
  "query": {
    "query_string": {
      "query": "PDB_W2237.docx", 
      "default_operator": "AND"
    }
  }
}

您正在查询 PDB_W2237.docx 但在您的 NEST 中您正在查询 DB_W2237.docx。

如果您想查询 DB_W2237.docx 并期待结果，那么您可能必须将分析器从默认应用的标准分析器更改为其他分析器 a possible candidate depends on your usecase.

为什么NEST ElasticClient没有找到文件？

Why do the NEST ElasticClient did not find a document?

c#

elasticsearch

nest

elasticsearch.net