ES基础（四十二）文档的父子关系

 

 

 

 

 

 

 

 

 

 

课程demo

PUT my_blogs/_doc/comment1?routing=blog1
{
  "comment":"I am learning ELK",
  "username":"Jack",
  "blog_comments_relation":{
    "name":"comment",
    "parent":"blog1"
  }
}

#索引子文档
PUT my_blogs/_doc/comment2?routing=blog2
{
  "comment":"I like Hadoop!!!!!",
  "username":"Jack",
  "blog_comments_relation":{
    "name":"comment",
    "parent":"blog2"
  }
}

#索引子文档
PUT my_blogs/_doc/comment3?routing=blog2
{
  "comment":"Hello Hadoop",
  "username":"Bob",
  "blog_comments_relation":{
    "name":"comment",
    "parent":"blog2"
  }
}

# 查询所有文档
POST my_blogs/_search
{

}


#根据父文档ID查看
GET my_blogs/_doc/blog2

# Parent Id 查询
POST my_blogs/_search
{
  "query": {
    "parent_id": {
      "type": "comment",
      "id": "blog2"
    }
  }
}

# Has Child 查询,返回父文档
POST my_blogs/_search
{
  "query": {
    "has_child": {
      "type": "comment",
      "query" : {
                "match": {
                    "username" : "Jack"
                }
            }
    }
  }
}


# Has Parent 查询，返回相关的子文档
POST my_blogs/_search
{
  "query": {
    "has_parent": {
      "parent_type": "blog",
      "query" : {
                "match": {
                    "title" : "Learning Hadoop"
                }
            }
    }
  }
}



#通过ID ，访问子文档
GET my_blogs/_doc/comment3
#通过ID和routing ，访问子文档
GET my_blogs/_doc/comment3?routing=blog2

#更新子文档
PUT my_blogs/_doc/comment3?routing=blog2
{
    "comment": "Hello Hadoop??",
    "blog_comments_relation": {
      "name": "comment",
      "parent": "blog2"
    }
}