Question

我遇到了Elasticsearch Term Facet

的问题

我把数据如下：

curl -X DELETE "http://localhost:9200/articles'

curl -X POST "http://localhost:9200/articles/article" -d '{"title" : "One",   "tags" : "foo","datetime":"2005-12-23 23:10:52"}'


curl -X POST "http://localhost:9200/articles/article" -d '{"title" : "Two",   "tags" : "bar","datetime":"2005-12-23 23:10:53"}'

curl -X POST "http://localhost:9200/articles/article" -d '{"title" : "Three", "tags" : "baz","datetime":"2005-12-23 23:10:54"}'

curl -X POST "http://localhost:9200/articles/article" -d '{"title" : "four", "tags" : "baz","datetime":"2005-12-23 23:10:55"}'

curl -X POST "http://localhost:9200/articles/article" -d '{"title" : "five", "tags" : "foo","datetime":"2005-12-23 23:10:56"}'

所以每当我查询术语时，它都会给出正确的结果，以下是我的Elasticsearch查询：

curl  'http://localhost:9200/articles/article/_search?pretty=true' -d '{

   "query": {
       "match_all": {}
   },
    "facets" : { "myfacet" : { "terms" : {"field" : "tags"}}
    }
}'

但是，当我向Facet添加过滤器时，它将不会显示以下任何方面计数：

curl  'http://localhost:9200/articles/article/_search?pretty=true' -d '{

   "query": {
       "match_all": {}
   },
   "facets" : {
        "myfacet" : { "terms" : {"field" : "tags"},
             "filter" : { "range" :{
 "datetime" : {"from" : "2005-12-23   3:10:52","to" : "2005-12-23 23:10:56" }

        }
            }
    }
    }
}'

我得到如下结果

facets" : {
    "myfacet" : {
      "_type" : "filter",
      "count" : 0
    }
  }

所以，任何人都知道为什么要给予这样的计数。

Answer 1

日期格式无效，请查看elasticsearch支持的支持日期时间格式（太长，请勿阅读，弹性搜索支持jodatime支持的任何日期）。

http://www.elasticsearch.org/guide/reference/mapping/date-format.html

话虽如此，您只需在insert语句中修改日期并将其置于有效的日期格式中，例如2005-12-23T23:10:55Z。然后只需将查询更改为该时间格式的正确时间范围，这应该会给您结果。

编写这些查询时也要小心，因为我注意到你在from子句中使用的日期无效。

以下是修改过的curl脚本：

curl -X POST "http://localhost:9200/articles/article" -d '{"title" : "One",   "tags" : "foo","datetime":"2005-12-23T23:10:52Z"}'

curl -X POST "http://localhost:9200/articles/article" -d '{"title" : "Two",   "tags" : "bar","datetime":"2005-12-23T23:10:53Z"}'

curl -X POST "http://localhost:9200/articles/article" -d '{"title" : "Three", "tags" : "baz","datetime":"2005-12-23T23:10:54Z"}'

curl -X POST "http://localhost:9200/articles/article" -d '{"title" : "four", "tags" : "baz","datetime":"2005-12-23T23:10:55Z"}'

curl -X POST "http://localhost:9200/articles/article" -d '{"title" : "five", "tags" : "foo","datetime":"2005-12-23T23:10:56Z"}'

和修改过的搜索：

 curl  'http://localhost:9200/articles/article/_search?pretty=true' -d '{

   "query": {
      "match_all": {}
    },
    "facets" : {
     "myfacet" : { 
         "terms" : {"field" : "tags"},
         "filter" : { "range" :{
                         "datetime" : {
                             "from" : "2005-12-23T23:10:52Z",
                              "to" : "2005-12-23T23:10:54Z" 
                          }   
                       }
                    }
                  }
             }
}'

希望这有帮助，马特

Elasticsearch TermsFacet给出了错误的计数

1 个答案: