⑤. aggs/aggName/aggs/aggName子聚合:按照年龄聚合,并且求这些年龄段的这些人的平均薪资
GET bank/_search { "query": { "match_all": {} }, "aggs": { "ageAgg": { "terms": { # 看分布 "field": "age", "size": 100 }, "aggs": { # 与terms并列 "ageAvg": { #平均 "avg": { "field": "balance" } } } } }, "size": 0 } 输出结果: { "took" : 49, "timed_out" : false, "_shards" : { "total" : 1, "successful" : 1, "skipped" : 0, "failed" : 0 }, "hits" : { "total" : { "value" : 1000, "relation" : "eq" }, "max_score" : null, "hits" : [ ] }, "aggregations" : { "ageAgg" : { "doc_count_error_upper_bound" : 0, "sum_other_doc_count" : 0, "buckets" : [ { "key" : 31, "doc_count" : 61, "ageAvg" : { "value" : 28312.918032786885 } }, { "key" : 39, "doc_count" : 60, "ageAvg" : { "value" : 25269.583333333332 } }, { "key" : 26, "doc_count" : 59, "ageAvg" : { "value" : 23194.813559322032 } }, { "key" : 32, "doc_count" : 52, "ageAvg" : { "value" : 23951.346153846152 } }, { "key" : 35, "doc_count" : 52, "ageAvg" : { "value" : 22136.69230769231 } }, { "key" : 36, "doc_count" : 52, "ageAvg" : { "value" : 22174.71153846154 } }, { "key" : 22, "doc_count" : 51, "ageAvg" : { "value" : 24731.07843137255 } }, { "key" : 28, "doc_count" : 51, "ageAvg" : { "value" : 28273.882352941175 } }, { "key" : 33, "doc_count" : 50, "ageAvg" : { "value" : 25093.94 } }, { "key" : 34, "doc_count" : 49, "ageAvg" : { "value" : 26809.95918367347 } }, { "key" : 30, "doc_count" : 47, "ageAvg" : { "value" : 22841.106382978724 } }, { "key" : 21, "doc_count" : 46, "ageAvg" : { "value" : 26981.434782608696 } }, { "key" : 40, "doc_count" : 45, "ageAvg" : { "value" : 27183.17777777778 } }, { "key" : 20, "doc_count" : 44, "ageAvg" : { "value" : 27741.227272727272 } }, { "key" : 23, "doc_count" : 42, "ageAvg" : { "value" : 27314.214285714286 } }, { "key" : 24, "doc_count" : 42, "ageAvg" : { "value" : 28519.04761904762 } }, { "key" : 25, "doc_count" : 42, "ageAvg" : { "value" : 27445.214285714286 } }, { "key" : 37, "doc_count" : 42, "ageAvg" : { "value" : 27022.261904761905 } }, { "key" : 27, "doc_count" : 39, "ageAvg" : { "value" : 21471.871794871793 } }, { "key" : 38, "doc_count" : 39, "ageAvg" : { "value" : 26187.17948717949 } }, { "key" : 29, "doc_count" : 35, "ageAvg" : { "value" : 29483.14285714286 } } ] } } }
