Question

我正在尝试运行一个简单的弹性搜索术语查询，如下所示（使用sense chrome扩展名）：

GET _search
{
   "query": {
      "terms": {
         "childcareTypes": [
            "SHARED_CHARGE",
            "OUT_OF_SCHOOL"
         ],
         "minimum_match": 2
      }
   }
}

这会返回0次点击：

{
   "took": 2,
   "timed_out": false,
   "_shards": {
      "total": 5,
      "successful": 5,
      "failed": 0
   },
   "hits": {
      "total": 0,
      "max_score": null,
      "hits": []
   }
}

我不确定为什么因为match_all查询确实显示三条记录中的两条匹配：

GET _search
{
   "query": {
    "match_all": {}
   }
}

的产率：

{
   "took": 3,
   "timed_out": false,
   "_shards": {
      "total": 5,
      "successful": 5,
      "failed": 0
   },
   "hits": {
      "total": 3,
      "max_score": 1,
      "hits": [
         {
            "_index": "bignibou",
            "_type": "advertisement",
            "_id": "1",
            "_score": 1,
            "_source": {
               "id": 1,
               "childcareWorkerType": "AUXILIAIRE_PARENTALE",
               "childcareTypes": [
                  "SHARED_CHARGE",
                  "OUT_OF_SCHOOL"
               ],
               "giveBath": "YES"
            }
         },
         {
            "_index": "bignibou",
            "_type": "advertisement",
            "_id": "2",
            "_score": 1,
            "_source": {
               "id": 2,
               "childcareWorkerType": "AUXILIAIRE_PARENTALE",
               "childcareTypes": [
                  "SHARED_CHARGE",
                  "OUT_OF_SCHOOL"
               ],
               "giveBath": "EMPTY"
            }
         },
         {
            "_index": "bignibou",
            "_type": "advertisement",
            "_id": "3",
            "_score": 1,
            "_source": {
               "id": 3,
               "childcareWorkerType": "AUXILIAIRE_PARENTALE",
               "childcareTypes": [
                  "SHARED_CHARGE"
               ],
               "giveBath": "YES"
            }
         }
      ]
   }
}

我的映射确实显示了字段childcareTypes被分析：

{
  "advertisement": {
    "dynamic": "false",
    "properties": {
      "id": {
        "type": "long",
        "store": "yes"
      },
      "childcareWorkerType": {
        "type": "string",
        "store": "yes",
        "index": "analyzed"
      },
      "childcareTypes": {
        "type": "string",
        "store": "yes",
        "index": "analyzed"
      },
      "giveBath": {
        "type": "string",
        "store": "yes",
        "index": "analyzed"
      }
    }
  }
}

有人可以解释为什么我的条款查询会返回0次点击？

Answer 1

就是这样，因为terms不会分析输入。这意味着它将完全搜索SHARED_CHARGE和OUT_OF_SCHOOL（大写字母）。而您将该字段设为"index": "analyzed"，这意味着ES将使用standard分析器对数据编制索引。

对于SHARED_CHARGE ES商店shared_charge。对于OUT_OF_SCHOOL ES商店out_of_school。

Answer 2

我的映射确实显示了字段childcareTypes被分析：

这正是您的问题所在：分析字段，但terms查询直接查找未分析的字词（请参阅here）。

更准确地说，索引值如下所示：

shared_charge
out_of_school

您的terms查询搜索：

SHARED_CHARGE
OUT_OF_SCHOOL

您可以像尝试此查询一样检查此行为......

POST /bignibou/_search
{
  "query": {
    "terms": {
      "childcareTypes": [
        "shared_charge",
        "out_of_school"
      ]
    }
  }
}

...你会找到你的文档。

您应该在字段的not_analyzed版本或match系列的查询中使用您之前的查询。

基本弹性搜索问题＆＃34;术语＆＃34;询问

2 个答案: