Es authoritative Guide (Chinese version) Learning _ Aggregation _3

1. Find the most common hobbies for all employees:

Get/megacorp/employee/_search {"Aggs": {"all_interests": {"Terms": {"field": "Interes ts "}}}}

We can see two employees who are interested in music, one like Lin, the other is sports.

2. Find the largest interests of employees whose surname is Smith:

get /megacorp/employee/_search {      "Query":{         "Match":{              "last_name": "Smith"          }    },     "Aggs":{          "All_interests":{              #all_ Interests aggregation has become a document that only contains the matching query statements              "terms": {  "field"  :  "Interests"  }        }     }} 

3, Statistics The average age of employees under each interest

Get/megacorp/employee/_search {"Aggs": {"all_interests": {"Terms": {"field": "Interests"},                "Aggs": {"Avg_age": {#avg_age字段来显示具有该兴趣员工的平均年龄 "avg": {"field": "Age"} }            }        }    }}

Es authoritative Guide (Chinese version) Learning _ Aggregation _3