Elasticsearch术语提示器不按预期方式工作

Question

我有一个域名为标题具有以下映射。

{ 
"title": { 
    "type": "string" 
} 

执行拼写检查术语提示器时，它没有按预期给出结果。

对于查询联想a1000，它返回结果如下。

[spell_suggestion] => Array 
     (
      [0] => Array 
       (
        [text] => lenovo 
        [offset] => 0 
        [length] => 6 
        [options] => Array 
         (
         ) 

       ) 

      [1] => Array 
       (
        [text] => a1000 
        [offset] => 7 
        [length] => 5 
        [options] => Array 
         (
          [0] => Array 
           (
            [text] => a1018 
            [score] => 0.6 
            [freq] => 1 
           ) 

          [1] => Array 
           (
            [text] => a102 
            [score] => 0.5 
            [freq] => 1 
           ) 

          [2] => Array 
           (
            [text] => a104 
            [score] => 0.5 
            [freq] => 1 
           ) 

          [3] => Array 
           (
            [text] => a108 
            [score] => 0.5 
            [freq] => 1 
           ) 

         ) 

       ) 

     ) 

) 

但索引具有包含联想A1000标题。

我正在使用以下查询进行拼写检查。

{ 
    "spell_suggestion": { 
     "text": "lenovo a1000", 
     "term": { 
      "field": "title", 
      "sort": "score", 
      "prefix_length": 3 
     } 
    } 
} 

为什么elasticsearch不会返回索引中已有的术语。 我做错了什么或失踪？请建议。

Answer 1

有一个选项suggest_mode默认为：

missing: Only provide suggestions for suggest text terms that are not in the index. This is the default. 

试图改变它为：

always: Suggest any matching suggestions based on terms in the suggest text. 

编号：https://www.elastic.co/guide/en/elasticsearch/reference/current/search-suggesters-term.html#_common_suggest_options