[elk]elasticsearch dsl语句

例子1 统计1，有唱歌兴趣的 2，按年龄分组 3，求每组平均年龄 4,按平均年龄降序排序

sql转为dsl例子

# 每种型号车的颜色数 > 1的
SELECT model,COUNT(DISTINCT color) color_count FROM cars
GROUP BY model
HAVING color_count > 1
ORDER BY color_count desc
LIMIT 2;

GET cars/_search
{
  "size": 0,
  "aggs": {
    "models": {
      "terms": {
        "field": "model.keyword"
      },
      "aggs": {
        "color_count": {
          "cardinality": {
            "field": "color.keyword"
          }
        },
        "color_count_filter": {
          "bucket_selector": {
            "buckets_path": {
              "colorCount": "color_count"
            },
            "script": "params.colorCount>1"
          }
        },
        "color_count_sort": {
          "bucket_sort": {
            "sort": {
              "color_count": "desc"
            },
            "size": 2
          }
        }
      }
    }
  }
}

23个有用的elasticsearch例子

https://cloud.tencent.com/developer/article/1367657