【5】ElasticSearch聚合查询

(1)sum

GET /lib4/items/_search
{
“size”:0,
“aggs”: {
“price_of_sum”: {
“sum”: {
“field”: “price”
}
}
}
}

(2)min

GET /lib4/items/_search
{
“size”: 0,
“aggs”: {
“price_of_min”: {
“min”: {
“field”: “price”
}
}
}
}

(3)max

GET /lib4/items/_search
{
“size”: 0,
“aggs”: {
“price_of_max”: {
“max”: {
“field”: “price”
}
}
}
}

(4)avg

GET /lib4/items/_search
{
“size”:0,
“aggs”: {
“price_of_avg”: {
“avg”: {
“field”: “price”
}
}
}
}

(5)cardinality:求基数

GET /lib4/items/_search
{
“size”:0,
“aggs”: {
“price_of_cardi”: {
“cardinality”: {
“field”: “price”
}
}
}
}

(6)terms:分组

GET /lib4/items/_search
{
“size”:0,
“aggs”: {
“price_group_by”: {
“terms”: {
“field”: “price”
}
}
}
}

对那些有唱歌兴趣的用户按年龄分组
GET /lib3/user/_search
{
“query”: {
“match”: {
“interests”: “changge”
}
},
“size”: 0,
“aggs”:{
“age_group_by”:{
“terms”: {
“field”: “age”,
“order”: {
“avg_of_age”: “desc”
}
},
“aggs”: {
“avg_of_age”: {
“avg”: {
“field”: “age”
}
}
}
}
}
}

最后

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