課程demo

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

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

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

# 查詢所有文件
POST my_blogs/_search
{

}


#根據父文件ID檢視
GET my_blogs
 
/_doc/blog2

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

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


# Has Parent 查詢，返回相關的子文件
POST my_blogs/_search
{
  "query": {
    "has_parent": {
      "parent_type": "blog",
      "query" : {
                "match": {
                    "title" : "Learning Hadoop"
                }
            }
    }
  }
}



#通過ID ，訪問子文件
GET my_blogs/_doc/comment3
#通過ID和routing ，訪問子文件
GET my_blogs/_doc/comment3?routing=blog2

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