ElasticSearch 5.1使用乘法滤波器过滤查询

Question

我需要为ElasticSearch 5.1的查询请求使用多个过滤器（范围和术语）。如果我分开使用（只有一个过滤器），它是确定：

var o = new 
      { 
       size = 20, 
       query = new 
       { 
        @bool = new 
        { 
         must = new 
         { 
          query_string = new 
          { 
           fields = new[] { "Title" }, 
           query = search_query 
          } 
         }, 
         filter = new 
         { 
          terms = new 
          { 
           SourceId = new[] {10,11,12} 
          } 
         } 
        } 
       }     
      }; 

OR

var o = new 
      { 
       size = 20, 
       query = new 
       { 
        @bool = new 
        { 
         must = new 
         { 
          query_string = new 
          { 
           fields = new[] { "Title" }, 
           query = search_query 
          } 
         }, 
         filter = new 
         { 
          range = new 
          { 
           PostPubDate = new 
           { 
            gte = "2015-10-01T00:00:00", 
            lte = "2015-11-01T12:00:00" 
           } 
          } 
         } 
        } 
       }     
      }; 

如果我使用他们两个我得到响应400错误：

string url = "http://localhost:9200/neg_collector/posts/_search"; 
      var request = (HttpWebRequest)HttpWebRequest.Create(url); 
      var o = new 
      { 
       size = 20, 
       query = new 
       { 
        @bool = new 
        { 
         must = new 
         { 
          query_string = new 
          { 
           fields = new[] { "Title" }, 
           query = search_query 
          } 
         }, 
         filter = new 
         { 
          terms = new 
          { 
           SourceId = new[] {10,11,12} 
          }, 
          range = new 
          { 
           PostPubDate = new 
           { 
            gte = "2015-10-01T00:00:00", 
            lte = "2015-11-01T12:00:00" 
           } 
          } 
         } 
        } 
       }     
      }; 


      request.Method = "POST"; 
      var jsonObj = JsonConvert.SerializeObject(o); 
      var data = Encoding.UTF8.GetBytes(jsonObj); 
      request.ContentType = "application/x-www-form-urlencoded"; 
      request.ContentLength = data.Length; 
      using (var stream = request.GetRequestStream()) 
      { 
       stream.Write(data, 0, data.Length); 
      } 

      string responseString = string.Empty; 
      var response = (HttpWebResponse)request.GetResponse(); 

我是什么做错了？谢谢

Answer 1

你的过滤器只需要为对象的数组：

... 
        filter = new object[] 
        { 
         new { 
         terms = new 
         { 
          SourceId = new[] {10,11,12} 
         } 
         }, 
         new { 
         range = new 
         { 
          PostPubDate = new 
          { 
           gte = "2015-10-01T00:00:00", 
           lte = "2015-11-01T12:00:00" 
          } 
         } 
         } 
        }