elasticsearch正则表达式查询与正确结果不匹配

Question

我的文档如下所示：

[  
   {  
      "Additional_Tests":"null",
      "New":"N",
      "name":"DIABETIC"
   },
   {  
      "Additional_Tests":"null",
      "New":"N",
      "name":"DIABETIS"
   },
   {  
      "Additional_Tests":"null",
      "New":"N",
      "name":"DIABETICS"
   },
   {  
      "Additional_Tests":"null",
      "New":"N",
      "name":"LIVER"
   }
]

现在，我要实现的是，当我写diabetis时，应该给我以下结果：

[  
   {  
      "Additional_Tests":"null",
      "New":"N",
      "name":"DIABETIC"
   },
   {  
      "Additional_Tests":"null",
      "New":"N",
      "name":"DIABETIS"
   },
   {  
      "Additional_Tests":"null",
      "New":"N",
      "name":"DIABETICS"
   }
]

为此，我编写了如下所示的查询：

{  
   "query":{  
      "regexp":{  
         "name":"diabetis.*"
      }
   }
}

但是以某种方式它给了我零点击，如下所示：

{ took: 0,
  timed_out: false,
  _shards: { total: 1, successful: 1, skipped: 0, failed: 0 },
  hits: { total: 0, max_score: null, hits: [] } }

那么我有什么办法可以实现？