ElasticSearch6.x 之聚合

客官°小女子只卖身不卖艺 2023-10-18 22:21 138阅读 0赞

自定义索引my\_index,并初始化相关数据

# 创建my_index索引
    put my_index
    #  索引数据初始化
    http://192.168.1.74:9200/my_index/person/2/
    {
      "name":"小周",
      "age":28,
      "salary":10000
    }
    http://192.168.1.74:9200/my_index/person/2/
    {
      "name":"小智",
      "age":18,
      "salary":5000
    }

聚合之max

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pob3V6aGl3ZW5nYW5n_size_16_color_FFFFFF_t_70][]

POST 请求：http://192.168.1.74:9200/my_index/_search/
    {
      "size": 0, 
      "aggs": {
        "max_age": {
          "max": {"field": "age"}
        }
      }
    }

聚合之min

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pob3V6aGl3ZW5nYW5n_size_16_color_FFFFFF_t_70 1][]

POST 请求：http://192.168.1.74:9200/my_index/_search/
    {
      "size": 0, 
      "aggs": {
        "min_age": {
          "min": {"field": "age"}
        }
      }
    }

聚合之avg

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pob3V6aGl3ZW5nYW5n_size_16_color_FFFFFF_t_70 2][]

POST 请求：http://192.168.1.74:9200/my_index/_search/
    {
      "size": 0, 
      "aggs": {
        "avg_age": {
          "avg": {"field": "age"}
        }
      }
    }

聚合之sum

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pob3V6aGl3ZW5nYW5n_size_16_color_FFFFFF_t_70 3][]

POST 请求：http://192.168.1.74:9200/my_index/_search/
    {
      "size": 0, 
      "aggs": {
        "sum_age": {
          "sum": {"field": "age"}
        }
      }
    }

聚合之stats

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pob3V6aGl3ZW5nYW5n_size_16_color_FFFFFF_t_70 4][]

POST 请求：http://192.168.1.74:9200/my_index/_search/
    {
      "size": 0, 
      "aggs": {
        "stats_age": {
          "stats": {"field": "age"}
        }
      }
    }

聚合高级统计（stats功能拓展）

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pob3V6aGl3ZW5nYW5n_size_16_color_FFFFFF_t_70 5][]

POST 请求：http://192.168.1.74:9200/my_index/_search/
    {
      "size": 0, 
      "aggs": {
        "stats_age": {
          "extended_stats": {"field": "age"}
        }
      }
    }

聚合之文档数量统计

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pob3V6aGl3ZW5nYW5n_size_16_color_FFFFFF_t_70 6][]

POST 请求：http://192.168.1.74:9200/my_index/_search/
    {
      "size": 0, 
      "aggs": {
        "doc_count": {
          "value_count": {"field": "age"}
        }
      }
    }

聚合之百分比统计

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pob3V6aGl3ZW5nYW5n_size_16_color_FFFFFF_t_70 7][]

POST 请求：http://192.168.1.74:9200/my_index/_search/
    {
      "size": 0, 
      "aggs": {
        "persion_salary": {
          "percentiles": {"field": "salary"}
        }
      }
    }

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