文章目錄
存儲桶聚合
是一種類似於桶的聚合分析，每個結果放在一個桶裏，支持子聚合
鄰接矩陣聚合 - adjacency_matrix
- 5.6的新功能
{
"size": 0,
"aggs" : {
"interactions" : {
"adjacency_matrix" : {
"filters" : {
"grpA" : { "terms" : { "accounts" : ["hillary", "sidney"] }},
"grpB" : { "terms" : { "accounts" : ["donald", "mitt"] }},
"grpC" : { "terms" : { "accounts" : ["vladimir", "nigel"] }}
}
}
}
}
}
子聚合 - _parten
設置mapping，answer和question爲父子關係。返回問題和答案的匹配文檔。
# 創建關聯mapping
{
"mappings": {
"answer" : {
"_parent" : {
"type" : "question"
}
}
}
}
# 分析
{
"aggs": {
"top-tags": {
"terms": {
"field": "tags.keyword",
"size": 10
},
"aggs": {
"to-answers": {
"children": {
"type" : "answer"
},
"aggs": {
"top-names": {
"terms": {
"field": "owner.display_name.keyword",
"size": 10
}
}
}
}
}
}
}
}
日期直方圖聚合分析 - date_histogram
- interval參數：
type1:year, quarter, month, week, day, hour, minute, second
type2:1.5h, 90m…
{
"aggs" : {
"sales_over_time" : {
"date_histogram" : {
"field" : "date",
"interval" : "month"
}
}
}
}
- 格式化時間
時間間隔爲一月
{
"aggs" : {
"sales_over_time" : {
"date_histogram" : {
"field" : "date",
"interval" : "1M",
"format" : "yyyy-MM-dd"
}
}
}
}
- 時區問題
{
"aggs": {
"by_day": {
"date_histogram": {
"field": "date",
"interval": "day",
"time_zone": "-01:00"
}
}
}
}
- 時間偏移量
{
"aggs": {
"by_day": {
"date_histogram": {
"field": "date",
"interval": "day",
"offset": "+6h"
}
}
}
}
- keyed Response
返回值中，將field指定的字段的唯一值，以hash輸出爲每個桶的key。
{
"aggs" : {
"sales_over_time" : {
"date_histogram" : {
"field" : "date",
"interval" : "1M",
"format" : "yyyy-MM-dd",
"keyed": true
}
}
}
}
- 缺失值處理
{
"aggs" : {
"sale_date" : {
"date_histogram" : {
"field" : "date",
"interval": "year",
"missing": "2000/01/01"
}
}
}
}
- 使用腳本按照星期幾分析
{
"aggs": {
"dayOfWeek": {
"terms": {
"script": {
"lang": "painless",
"source": "doc['date'].date.dayOfWeek"
}
}
}
}
}
日期範圍分析 - data_range
- 日期範圍
now-10M/M：當前日期增加10個月，偏移到月初。to：向上，from：向下。
{
"aggs": {
"range": {
"date_range": {
"field": "date",
"format": "MM-yyy",
"ranges": [
{ "to": "now-10M/M" },
{ "from": "now-10M/M" }
]
}
}
}
}
| 符號 | 說明 | 類型 | 栗子 |
|---|---|---|---|
| G | 時代 | text | AD |
| C | 世紀(>=0) | number | 20 |
| Y | 年代(>=0) | year | 1996 |
| x | 週年 | year | 1996 |
| w | 一年中的周 | number | 27 |
| e | 一週中的天 | number | 2 |
| E | 星期 | text | Tuesday; Tue |
| y | 年 | year | 1996 |
| D | 一年中的天 | number | 189 |
| M | 月 | month | July; Jul; 07 |
| d | 一月中的天 | number | 10 |
| a | 半天 | text | PM |
| K | 半天的第幾小時(0~11) | number | 0 |
| h | 半天的時鐘 (1~12) | number | 12 |
| H | 小時 | number | 0 |
| k | 一天的時鐘(1~24) | number | 24 |
| m | 分鐘 | number | 30 |
| s | 秒 | number | 55 |
| S | 毫秒 | number | 978 |
| z | 時區 | text | Pacific Standard Time; PST |
| Z | 時區偏移 | zone | -0800; -08:00; America/Los_Angeles |
| ’ | 轉義字符 | delimiter | ‘’ |
- 時區範圍聚合分析
{
"aggs": {
"range": {
"date_range": {
"field": "date",
"time_zone": "CET",
"ranges": [
{ "to": "2016/02/01" },
{ "from": "2016/02/01", "to" : "now/d" },
{ "from": "now/d" }
]
}
}
}
}
- keyed Response
{
"aggs": {
"range": {
"date_range": {
"field": "date",
"format": "MM-yyy",
"ranges": [
{ "to": "now-10M/M" },
{ "from": "now-10M/M" }
],
"keyed": true
}
}
}
}
or
{
"aggs": {
"range": {
"date_range": {
"field": "date",
"format": "MM-yyy",
"ranges": [
{ "from": "01-2015", "to": "03-2015", "key": "quarter_01" },
{ "from": "03-2015", "to": "06-2015", "key": "quarter_02" }
],
"keyed": true
}
}
}
}
多樣化採集聚合分析 - diversified_sampler
{
"query": {
"query_string": {
"query": "tags:elasticsearch"
}
},
"aggs": {
"my_unbiased_sample": {
"diversified_sampler": {
"shard_size": 200,
"field" : "author"
},
"aggs": {
"keywords": {
"significant_terms": {
"field": "tags",
"exclude": ["elasticsearch"]
}
}
}
}
}
}
單過濾聚合 - filter
{
"aggs" : {
"t_shirts" : {
"filter" : { "term": { "type": "t-shirt" } },
"aggs" : {
"avg_price" : { "avg" : { "field" : "price" } }
}
}
}
}
多過濾聚合 - filters
{
"size": 0,
"aggs" : {
"messages" : {
"filters" : {
"filters" : {
"errors" : { "match" : { "body" : "error" }},
"warnings" : { "match" : { "body" : "warning" }}
}
}
}
}
}
- 匿名過濾聚合
{
"size": 0,
"aggs" : {
"messages" : {
"filters" : {
"filters" : [
{ "match" : { "body" : "error" }},
{ "match" : { "body" : "warning" }}
]
}
}
}
}
- 其他桶聚合
other_bucket_key爲其他桶命名，有此參數，other_bucket參數默認爲true，否則使用other_bucket參數設置是否顯示其他桶。
{
"size": 0,
"aggs" : {
"messages" : {
"filters" : {
"other_bucket_key": "other_messages",
"filters" : {
"errors" : { "match" : { "body" : "error" }},
"warnings" : { "match" : { "body" : "warning" }}
}
}
}
}
}
全局聚合 - global
- 頂級聚合器
{
"query" : {
"match" : { "type" : "t-shirt" }
},
"aggs" : {
"all_products" : {
"global" : {},
"aggs" : {
"avg_price" : { "avg" : { "field" : "price" } }
}
},
"t_shirts": { "avg" : { "field" : "price" } }
}
}
IP範圍聚合 - ip_range
{
"aggs" : {
"ip_ranges" : {
"ip_range" : {
"field" : "ip",
"ranges" : [
{ "to" : "10.0.0.5" },
{ "from" : "10.0.0.5" }
]
}
}
}
}
- CIDR掩碼
{
"aggs" : {
"ip_ranges" : {
"ip_range" : {
"field" : "ip",
"ranges" : [
{ "mask" : "10.0.0.0/25" },
{ "mask" : "10.0.0.127/25" }
]
}
}
}
}
- keyed Response
{
"aggs": {
"ip_ranges": {
"ip_range": {
"field": "remote_ip",
"ranges": [
{ "to" : "10.0.0.5" },
{ "from" : "10.0.0.5" }
],
"keyed": true
}
}
}
}
# 指定key
{
"aggs": {
"ip_ranges": {
"ip_range": {
"field": "remote_ip",
"ranges": [
{ "key": "infinity", "to" : "10.0.0.5" },
{ "key": "and-beyond", "from" : "10.0.0.5" }
],
"keyed": true
}
}
}
}
嵌套聚合 - resellers
{
"product" : {
"properties" : {
"resellers" : {
"type" : "nested",
"properties" : {
"name" : { "type" : "text" },
"price" : { "type" : "double" }
}
}
}
}
}
- 或者
{
"query" : {
"match" : { "name" : "led tv" }
},
"aggs" : {
"resellers" : {
"nested" : {
"path" : "resellers"
},
"aggs" : {
"min_price" : { "min" : { "field" : "resellers.price" } }
}
}
}
}
範圍聚合 - range
{
"aggs" : {
"price_ranges" : {
"range" : {
"field" : "price",
"ranges" : [
{ "to" : 50 },
{ "from" : 50, "to" : 100 },
{ "from" : 100 }
]
}
}
}
}
- keyed Response
{
"aggs" : {
"price_ranges" : {
"range" : {
"field" : "price",
"keyed" : true,
"ranges" : [
{ "to" : 50 },
{ "from" : 50, "to" : 100 },
{ "from" : 100 }
]
}
}
}
}
# 或者
{
"aggs" : {
"price_ranges" : {
"range" : {
"field" : "price",
"keyed" : true,
"ranges" : [
{ "key" : "cheap", "to" : 50 },
{ "key" : "average", "from" : 50, "to" : 100 },
{ "key" : "expensive", "from" : 100 }
]
}
}
}
}
- 腳本
{
"aggs" : {
"price_ranges" : {
"range" : {
"script" : {
"lang": "painless",
"source": "doc['price'].value"
},
"ranges" : [
{ "to" : 50 },
{ "from" : 50, "to" : 100 },
{ "from" : 100 }
]
}
}
}
}
- 值腳本
{
"aggs" : {
"price_ranges" : {
"range" : {
"field" : "price",
"script" : {
"lang": "painless",
"source": "_value * params.conversion_rate",
"params" : {
"conversion_rate" : 0.8
}
},
"ranges" : [
{ "to" : 35 },
{ "from" : 35, "to" : 70 },
{ "from" : 70 }
]
}
}
}
}
- 子聚合
{
"aggs" : {
"price_ranges" : {
"range" : {
"field" : "price",
"ranges" : [
{ "to" : 50 },
{ "from" : 50, "to" : 100 },
{ "from" : 100 }
]
},
"aggs" : {
"price_stats" : {
"stats" : { "field" : "price" }
}
}
}
}
}
# 或者，基於父聚合的子聚合可以省略stats
{
"aggs" : {
"price_ranges" : {
"range" : {
"field" : "price",
"ranges" : [
{ "to" : 50 },
{ "from" : 50, "to" : 100 },
{ "from" : 100 }
]
},
"aggs" : {
"price_stats" : {
"stats" : {}
}
}
}
}
}
反向嵌套聚合 - reverse_nested
該嵌套聚合，必須中nested之下才可使用。
{
"issue" : {
"properties" : {
"tags" : { "type" : "text" },
"comments" : { # 出現在反向嵌套語句的nested的path參數中
"type" : "nested",
"properties" : {
"username" : { "type" : "keyword" },
"comment" : { "type" : "text" }
}
}
}
}
}
# 反向嵌套
{
"query": {
"match": {
"name": "led tv"
}
},
"aggs": {
"comments": {
"nested": {
"path": "comments"
},
"aggs": {
"top_usernames": {
"terms": {
"field": "comments.username"
},
"aggs": {
"comment_to_issue": {
"reverse_nested": {},
"aggs": {
"top_tags_per_comment": {
"terms": {
"field": "tags"
}
}
}
}
}
}
}
}
}
}