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我正在使用 Bonsai 的免费层,并正在尝试编写一个脚本来管理我的弹性索引中的文档数量。为了最大化我可以保存的文档数量,我想开始删除其中有许多嵌套文档的文档。

例子:

{   
 "title": "Spiderman saves child from well",   
 "body":  "Move over, Lassie! New York has a new hero. But is he also a menace?",   
 "authors": [
   { 
      "name":  "Jonah Jameson",       
      "title": "Sr. Editor",     
   },     
   {       
      "name":  "Peter Parker",       
      "title": "Photos",     
   }   
  ],   
 "comments": [     
   {       
      "username": "captain_usa",       
      "comment":  "I understood that reference!",     
   },     
   {       
      "username": "man_of_iron",       
      "comment":  "Congrats on being slightly more useful than a ladder.",     
   }   
  ],   
 "photos": [ 
   {       
      "url":      "https://assets.dailybugle.com/12345",       
      "caption":  "Spiderman delivering Timmy back to his mother",     
   }   
  ] 
 }
    

Elastic 中是否有任何内容可以告诉我,由于大量嵌套,该文档实际上是 6 个文档?理想情况下,我将能够按此“文档计数”对弹性记录进行排序。

谢谢!

4

1 回答 1

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如果您的authors,comments和是专用的 elasticsearch数据类型photos的普通嵌套(对象数组)nested,您可以执行以下操作:

GET bonsai/_search
{
  "_source": [""], 
  "sort": [
    {
      "_script": {
        "type": "number",
        "script": {
          
          "source": """
            def count = 1; // top level doc count is 1
            for (def entry : params._source.values()) {
              if (entry instanceof ArrayList) {
                count += entry.size()
              }
            }
            return count;
          """
        }
      }
    }
  ]
}

我真的不知道上述文档的大小为 6 - 所以我认为这是因为您也计算了顶级文档。随意在脚本中从 0 开始计数。

于 2020-09-22T08:58:15.033 回答