ElasticSearch

Elasticsearch将扁平化嵌套对象，因此在内部您将获得：

{  "title":"The Judge","year":2014,"casting.name": ["Robert Downey Jr.","Robert Duvall"],"casting.category": ["Producer", "Actor"]}

如果要保留关系，则需要使用嵌套对象或父子关系

要进行嵌套映射，您需要执行以下操作：

  "mappings": {    "movies": {      "properties": {        "title" : { "type": "string" },        "year" : { "type": "integer" },        "casting": {          "type": "nested","properties": { "name":    { "type": "string" }, "category": { "type": "string" }          }        }      }    }  }