elasticsearch - 如何在Elasticsearch中使用短语提示器？

Question

我想在Elasticsearch 1.7中使用词组建议程序。

https://www.elastic.co/guide/en/elasticsearch/reference/current/search-suggesters-phrase.html

因此，我在下面的查询中创建了类似“待办页面”示例，但出现了错误。

nested: ElasticsearchIllegalArgumentException[No mapping found for field [itemname]];

$ curl -XPOST 'localhost:9200/_search?pretty' -d '{
  "query": {
    "function_score": {
      "query": {
        "filtered": {
          "query": {
            "query_string": {
              "fields": [
                "itemname"
              ],
              "query": "cola"
            }
          }
        }
      }
    }
  },
  "suggest": {
    "text": "cola",
    "simple_phrase": {
      "phrase": {
        "field": "itemname",
        "size": 5,
        "real_word_error_likelihood": 0.95,
        "max_errors": 0.5,
        "gram_size": 2
      }
    }
  }
}'

但是 字段[itemname]] 是绝对定义的。
实际上，我可以使用此查询从itemname字段中搜索。

$ curl -XPOST 'localhost:9200/_search?pretty' -d '{
  "query": {
    "function_score": {
      "query": {
        "filtered": {
          "query": {
            "query_string": {
              "fields": [
                "itemname"
              ],
              "query": "cola"
            }
          }
        }
      }
    }
  }
}'
{
  "took" : 9,
  "timed_out" : false,
  "_shards" : {
    "total" : 15,
    "successful" : 15,
    "failed" : 0
  },
  "hits" : {
    "total" : 97,
    "max_score" : 11.625176,
    "hits" : [ {
      "_index" : "my_index",
      "_type" : "my_type",
      "_id" : "20615",
      "_score" : 11.625176,
      "_source":{"itemid":"20615","itemname":"cola 500ml"}
    }, {

在这种情况下我怎么了？
有人建议我如何正确使用短语提示器吗？

谢谢。

添加我的设置

# curl -XGET 'http://localhost:9200/my_index?pretty'
{
  "my_index" : {
    "aliases" : { },
    "mappings" : {
      "my_type" : {
        "_all" : {
          "enabled" : true,
          "analyzer" : "kuromoji_analyzer"
        },
        "properties" : {
          "itemid" : {
            "type" : "string",
            "index" : "not_analyzed",
            "store" : true
          },
          "catname" : {
            "type" : "string",
            "store" : true,
            "analyzer" : "kuromoji_analyzer"
          },
          "itemname" : {
            "type" : "string",
            "store" : true,
            "analyzer" : "kuromoji_analyzer"
          },
          "myscore" : {
            "type" : "double",
            "store" : true
          },
          "subcatname" : {
            "type" : "string",
            "store" : true,
            "analyzer" : "kuromoji_analyzer"
          }
        }
      }
    },

Answer 1

我认为，由于您正在根端点/上运行建议程序查询，因此您的搜索将找到另一个索引，该索引没有任何定义itemname字段的映射类型。

尝试直接在具有定义itemname字段的映射类型的索引上运行查询。

根据第二个查询的结果，您应该尝试在/my_index/my_type而非根端点/上运行建议程序

                        add the index and the type
                                |      |
                                v      v
curl -XPOST 'localhost:9200/my_index/my_type/_search?pretty' -d '{
  "query": {
    "function_score": {
      "query": {
        "filtered": {
          "query": {
            "query_string": {
              "fields": [
                "itemname"
              ],
              "query": "cola"
            }
          }
        }
      }
    }
  },
  "suggest": {
    "text": "cola",
    "simple_phrase": {
      "phrase": {
        "field": "itemname",
        "size": 5,
        "real_word_error_likelihood": 0.95,
        "max_errors": 0.5,
        "gram_size": 2
      }
    }
  }
}'