聚合查询

基于某字段

GET /fruit/_search
{
  "query": {
    "match_all": {}
  },
  "size": 0, 
  "aggs": {
    "price_group": {
      "terms": {
        "field": "price"
      }
    }
  }
}

求最大值

GET /fruit/_search
{
  "query": {
    "match_all": {}
  },
  "size": 0, 
  "aggs": {
    "max_price": {
      "max": {
        "field": "price"
      }
    }
  }
}

求最小值

GET /fruit/_search
{
  "query": {
    "match_all": {}
  },
  "size": 0, 
  "aggs": {
    "min_price": {
      "min": {
        "field": "price"
      }
    }
  }
}

求和

GET /fruit/_search
{
  "query": {
    "match_all": {}
  },
  "size": 0, 
  "aggs": {
    "sum_price": {
      "sum": {
        "field": "price"
      }
    }
  }
}

求平均值

GET /fruit/_search
{
  "query": {
    "match_all": {}
  },
  "size": 0, 
  "aggs": {
    "avg_price": {
      "avg": {
        "field": "price"
      }
    }
  }
}