46.颜色+品牌下钻分析时按最深层metric进行排序

主要知识点：

在做下钻分析时的排序

 
 

需求，以颜色进行bucket,这里bucket里面的doc以其各品牌的平均价格排序，

 
 

GET /tvs/sales/_search

{

"size": 0,

"aggs": {"group_by_color": {

"terms": {"field": "color"},

"aggs": {"group_by_brand": {

"terms": {"field": "brand","order": {"avg_price": "desc"}},

"aggs": {"avg_price": {"avg": {"field": "price"}}}

}

}

}

}

}

 
 

这样红色里面有三星和长虹两个品牌，这两个品牌以平均价格排序。

"aggregations": {

"group_by_color": {

"doc_count_error_upper_bound": 0,

"sum_other_doc_count": 0,

"buckets": [

{

"key": "红色",

"doc_count": 4,

"group_by_brand": {

"doc_count_error_upper_bound": 0,

"sum_other_doc_count": 0,

"buckets": [

{

"key": "三星",

"doc_count": 1,

"avg_price": {

"value": 8000

}

},

{

"key": "长虹",

"doc_count": 3,

"avg_price": {

"value": 1666.6666666666667

}

}

]

}

},