ElasticSearch每個擴展的查詢獲得其長度的總和

Question

我期待找到每個擴展的總和。 JSON文件包含

示例代碼

 {"index":{"_id":"202"}} 
     "length":500000 
     "extension":".jpeg" 

輸出想要

重點：JPEG千萬 重點：DOCX 20000000

試過代碼

 GET /crud_sample2/Customer_Info/_search?extension 
      { 
      "aggs": { 
      "sum": { 
      "terms": { 
       "field": "length" 
       } 
      } 
      } 
     } 

輸出

「鑰匙」：500000 「doc_count」：15

Answer 1

試試這個

GET /crud_sample2/Customer_Info/_search 
{ 
    "aggs": { 
    "sum": { 
     "terms": { 
     "field": "extension", 
     "order": {"total_length": "desc"} 
     }, 
     "aggs": { 
     "total_length": { 
      "sum": { 
      "field": "length" 
      } 
     } 
     } 
    } 
    } 
}