在 Elasticsearch 中的集合映射中包含字符串和对象的 json 数组答案

【问题标题】：json array with string and objects inside set mapping in Elasticsearch在 Elasticsearch 中的集合映射中包含字符串和对象的 json 数组
【发布时间】：2020-08-03 16:58:48
【问题描述】：

这里有两个json：

json 1：

{
  "organization": [
    "Univ Philippines",
    {
      "pref": "Y",
      "content": "University of the Philippines System"
    },
    {
      "pref": "Y",
      "content": "University of the Philippines Diliman"
    }
  ]
}

json 2：

{
   "organization": "Univ Philippines"
}

我需要将它们索引到 Elasticsearch 中。如何设置organization字段映射？

我试过string和object类型，但都失败了。

PUT sci_test
{
  "mappings": {
    "sci":{
      "properties": {
        "organization":{
          "type": "object"
        }
      }
    }
  }
}
PUT sci_test/sci/1
{
  "organization": [
    "Univ Philippines",
    {
      "pref": "Y",
      "content": "University of the Philippines System"
    },
    {
      "pref": "Y",
      "content": "University of the Philippines Diliman"
    }
  ]
}

error info:
{
  "error": {
    "root_cause": [
      {
        "type": "mapper_parsing_exception",
        "reason": "object mapping for [organization] tried to parse field [null] as object, but found a concrete value"
      }
    ],
    "type": "mapper_parsing_exception",
    "reason": "object mapping for [organization] tried to parse field [null] as object, but found a concrete value"
  },
  "status": 400
}

【问题讨论】：

标签： elasticsearch mapping elasticsearch-5 elk

【解决方案1】：

所有字段必须属于同一类型。您不能将字符串与对象混合

"Univ Philippines",                                      --> text
 {                                                       --> object
      "pref": "Y",
      "content": "University of the Philippines System"
 }"

您需要将“Univ Philippines”定义为“University”：“Univ Philippines”（添加一些关键的“大学”等）。

【讨论】：