elasticsearch计算唯一值的平均值 [英] elasticsearch calculate average of unique values

问题描述

如何在Elasticsearch中动态计算唯一值的平均值?

How can I dynamically calculate the average of unique values in elasticsearch?

{ "price" : 10000, "color" : "red" }
{ "price" : 20000, "color" : "red" }
{ "price" : 30000, "color" : "green" }
{ "price" : 15000, "color" : "blue" }
{ "price" : 12000, "color" : "green" }
{ "price" : 20000, "color" : "red" }
{ "price" : 80000, "color" : "red" }
{ "price" : 25000, "color" : "blue" }

在以上数据中，如何获得颜色"字段的唯一值，然后获得每个颜色"字段的平均值?

In the above data, how can I get the unique values of the "color" field and then the averages for each of the unique "color" fields?

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