我想获得子聚合的平均值。例如,我每天每个分支机构都有利润。我想对它们进行汇总,以便我可以获取总的每日利润。然后我想获取该每日利润的每月或每周平均值。到目前为止,我已经做到了
{
"size" : 0,
"aggs" : {
"group_by_month": {
"date_histogram": {
"field": "Profit_Day",
"interval": "month",
"format" : "MM-yyyy"
},
"aggs": {
"avgProf": {
"avg": {
"field": "ProfitValue"
}
},
"group_by_day": {
"date_histogram": {
"field": "Profit_Day",
"interval": "day",
"format" : "yyyy-MM-dd"
},
"aggs": {
"prof": {
"sum": {
"field": "ProfitValue"
}
}
}
}
}
}
}
}
问题是我每天收到的款项是正确的而不是获取每日总金额的每月平均值我从每个分支机构获得每月平均利润。
您需要使用average bucket aggragetion
查询:
GET sales1/_search
{
"size": 0,
"aggs": {
"group_by_month": {
"date_histogram": {
"field": "proffit_day",
"interval": "month",
"format": "MM-yyyy"
},
"aggs": {
"group_by_day": {
"date_histogram": {
"field": "proffit_day",
"interval": "day",
"format": "yyyy-MM-dd"
},
"aggs": {
"prof": {
"sum": {
"field": "proffit_value"
}
}
}
},
"avg_monthly_sales": {
"avg_bucket": {
"buckets_path": "group_by_day>prof"
}
}
}
}
}
}
响应:
{
"group_by_month" : {
"buckets" : [
{
"key_as_string" : "09-2019",
"key" : 1567296000000,
"doc_count" : 2,
"group_by_day" : {
"buckets" : [
{
"key_as_string" : "2019-09-25",
"key" : 1569369600000,
"doc_count" : 2,
"prof" : {
"value" : 15.0
}
}
]
},
"avg_monthly_sales" : {
"value" : 15.0
}
},
{
"key_as_string" : "10-2019",
"key" : 1569888000000,
"doc_count" : 2,
"group_by_day" : {
"buckets" : [
{
"key_as_string" : "2019-10-01",
"key" : 1569888000000,
"doc_count" : 1,
"prof" : {
"value" : 10.0
}
},
{
"key_as_string" : "2019-10-02",
"key" : 1569974400000,
"doc_count" : 0,
"prof" : {
"value" : 0.0
}
},
{
"key_as_string" : "2019-10-03",
"key" : 1570060800000,
"doc_count" : 1,
"prof" : {
"value" : 15.0
}
}
]
},
"avg_monthly_sales" : {
"value" : 12.5
}
}
]
}
}
}