父子关系中，如何“同时”获取父、子详细数据？

In many cases, it’s very useful to know which inner nested objects (in the case of nested) or children/parent documents (in the case of parent/child) caused certain information to be returned. The inner hits feature can be used for this. This feature returns per search hit in the search response additional nested hits that caused a search hit to match in a different scope.
 

{ "query" : 
   { "has_child" : 
      { "type" : "comment", 
        "query" : { "match" : {"message" : "[actual query]"} }, 
        "inner_hits" : {} 
       } 
   } 
}