Amazon dynamodb DynamoDB OrderBy操作

GSI：价格指数[采购类型，价格]

使用索引“价格指数”进行查询

条件：purchasetype=“在线”且价格>500

扫描索引：正确

如何根据以下条件得到结果：

purchasetype=“在线” 价格>500

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按名称订购您需要创建不同的GSI：

PurchaseType-GSI的分区键

名称-GSI的排序键

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然后，您可以使用查询查找具有必要采购类型的所有项目，按名称订购，并提供一个用于筛选所有价格较高的项目。

价格指数的分区键和排序键是否可能重复？

Table : Customer

Item: CustomerId,PurchaseType,Name,mobilenumber,price, createdDate

DATA1: cus001,"online","BBBBB","yourmobilenumber",6000,"01/07/2017 01:12:05"
DATA2: cus002,"online","myname","mymobilenumber",500,"10/07/2017 01:12:01"
DATA3: cus003,"online","AAAAA","yourmobilenumber",6000,"10/07/2017 01:12:06"
DATA4: cus004,"online","yourname","yourmobilenumber",1000,"10/07/2017 02:12:06"
DATA5: cus005,"retail","yourname","yourmobilenumber",1000,"10/07/2017 03:12:06"