您可以在Map中使用_meta field来添加任何适合您的索引的自定义信息。

PUT my-index-000001
{
  "mappings": {
    "_meta": { 
      "date": "2023-05-17",
      "time": "10:12",
      "author": "John Doe",
      "scope": "Development"
    }
  }
}

_meta字段可以使用更新MapAPI在现有类型上更新：

PUT my-index-000001/_mapping
{
  "_meta": {
    "date": "2023-05-18",
    "time": "23:10",
    "author": "Jane Doe",
    "scope": "Quality"
  }
}