桶 aggregation/bucket_script 计算
bucket aggregation/bucket_script computation
如何通过bucket_script使用桶字段应用计算?更重要的是,我想了解如何聚合不同的结果。
例如,下面是示例查询和响应。
我正在寻找的是将以下内容汇总到两个字段中:
- 所有桶的总和 dist.value 来自例如回应 (1+2=3)
- 来自例如响应 (1x10)+(2x20)=50
的所有桶的总和(dist.value x 键)
查询
{
"size": 0,
"query": {
"bool": {
"must": [
{
"match": {
"field": "value"
}
}
]
}
},
"aggs":{
"sales_summary":{
"terms":{
"field":"qty",
"size":"100"
},
"aggs":{
"dist":{
"cardinality":{
"field":"somekey.keyword"
}
}
}
}
}
}
查询结果:
{
"aggregations": {
"sales_summary": {
"doc_count_error_upper_bound": 0,
"sum_other_doc_count": 0,
"buckets": [
{
"key": 10,
"doc_count": 100,
"dist": {
"value": 1
}
},
{
"key": 20,
"doc_count": 200,
"dist": {
"value": 2
}
}
]
}
}
}
您需要使用 sum bucket aggregation,这是一个管道聚合,用于查找所有桶中基数聚合的响应总和。
搜索查询所有桶的总和 dist.value 来自例如响应 (1+2=3):
POST idxtest1/_search
{
"size": 0,
"aggs": {
"sales_summary": {
"terms": {
"field": "qty",
"size": "100"
},
"aggs": {
"dist": {
"cardinality": {
"field": "pageview"
}
}
}
},
"sum_buckets": {
"sum_bucket": {
"buckets_path": "sales_summary>dist"
}
}
}
}
搜索响应:
"aggregations" : {
"sales_summary" : {
"doc_count_error_upper_bound" : 0,
"sum_other_doc_count" : 0,
"buckets" : [
{
"key" : 10,
"doc_count" : 3,
"dist" : {
"value" : 2
}
},
{
"key" : 20,
"doc_count" : 3,
"dist" : {
"value" : 3
}
}
]
},
"sum_buckets" : {
"value" : 5.0
}
}
对于第二个需求,需要先修改bucket aggregation response中value的response,使用bucket script aggregation,然后使用修改后的value对其进行bucket sum聚合
从例如响应 (1x10)+(2x20)=50
中搜索查询所有桶的总和(dist.value x 键)
POST idxtest1/_search
{
"size": 0,
"aggs": {
"sales_summary": {
"terms": {
"field": "qty",
"size": "100"
},
"aggs": {
"dist": {
"cardinality": {
"field": "pageview"
}
},
"format-value-agg": {
"bucket_script": {
"buckets_path": {
"newValue": "dist"
},
"script": "params.newValue * 10"
}
}
}
},
"sum_buckets": {
"sum_bucket": {
"buckets_path": "sales_summary>format-value-agg"
}
}
}
}
搜索响应:
"aggregations" : {
"sales_summary" : {
"doc_count_error_upper_bound" : 0,
"sum_other_doc_count" : 0,
"buckets" : [
{
"key" : 10,
"doc_count" : 3,
"dist" : {
"value" : 2
},
"format-value-agg" : {
"value" : 20.0
}
},
{
"key" : 20,
"doc_count" : 3,
"dist" : {
"value" : 3
},
"format-value-agg" : {
"value" : 30.0
}
}
]
},
"sum_buckets" : {
"value" : 50.0
}
}
如何通过bucket_script使用桶字段应用计算?更重要的是,我想了解如何聚合不同的结果。
例如,下面是示例查询和响应。
我正在寻找的是将以下内容汇总到两个字段中:
- 所有桶的总和 dist.value 来自例如回应 (1+2=3)
- 来自例如响应 (1x10)+(2x20)=50 的所有桶的总和(dist.value x 键)
查询
{
"size": 0,
"query": {
"bool": {
"must": [
{
"match": {
"field": "value"
}
}
]
}
},
"aggs":{
"sales_summary":{
"terms":{
"field":"qty",
"size":"100"
},
"aggs":{
"dist":{
"cardinality":{
"field":"somekey.keyword"
}
}
}
}
}
}
查询结果:
{
"aggregations": {
"sales_summary": {
"doc_count_error_upper_bound": 0,
"sum_other_doc_count": 0,
"buckets": [
{
"key": 10,
"doc_count": 100,
"dist": {
"value": 1
}
},
{
"key": 20,
"doc_count": 200,
"dist": {
"value": 2
}
}
]
}
}
}
您需要使用 sum bucket aggregation,这是一个管道聚合,用于查找所有桶中基数聚合的响应总和。
搜索查询所有桶的总和 dist.value 来自例如响应 (1+2=3):
POST idxtest1/_search
{
"size": 0,
"aggs": {
"sales_summary": {
"terms": {
"field": "qty",
"size": "100"
},
"aggs": {
"dist": {
"cardinality": {
"field": "pageview"
}
}
}
},
"sum_buckets": {
"sum_bucket": {
"buckets_path": "sales_summary>dist"
}
}
}
}
搜索响应:
"aggregations" : {
"sales_summary" : {
"doc_count_error_upper_bound" : 0,
"sum_other_doc_count" : 0,
"buckets" : [
{
"key" : 10,
"doc_count" : 3,
"dist" : {
"value" : 2
}
},
{
"key" : 20,
"doc_count" : 3,
"dist" : {
"value" : 3
}
}
]
},
"sum_buckets" : {
"value" : 5.0
}
}
对于第二个需求,需要先修改bucket aggregation response中value的response,使用bucket script aggregation,然后使用修改后的value对其进行bucket sum聚合
从例如响应 (1x10)+(2x20)=50
中搜索查询所有桶的总和(dist.value x 键)POST idxtest1/_search
{
"size": 0,
"aggs": {
"sales_summary": {
"terms": {
"field": "qty",
"size": "100"
},
"aggs": {
"dist": {
"cardinality": {
"field": "pageview"
}
},
"format-value-agg": {
"bucket_script": {
"buckets_path": {
"newValue": "dist"
},
"script": "params.newValue * 10"
}
}
}
},
"sum_buckets": {
"sum_bucket": {
"buckets_path": "sales_summary>format-value-agg"
}
}
}
}
搜索响应:
"aggregations" : {
"sales_summary" : {
"doc_count_error_upper_bound" : 0,
"sum_other_doc_count" : 0,
"buckets" : [
{
"key" : 10,
"doc_count" : 3,
"dist" : {
"value" : 2
},
"format-value-agg" : {
"value" : 20.0
}
},
{
"key" : 20,
"doc_count" : 3,
"dist" : {
"value" : 3
},
"format-value-agg" : {
"value" : 30.0
}
}
]
},
"sum_buckets" : {
"value" : 50.0
}
}