amazon-web-services - AttributeDefinitions 和 KeySchema 中的属性集必须在 Resources/DynamoDB/Properties 中匹配

Question

我想在 Cloudformation 中为我的 DynamoDB 表设置一些属性，但收到此错误:

代码:

DynamoDB:
Type: AWS::DynamoDB::Table
Properties:
  AttributeDefinitions:
    - AttributeName: UserId
      AttributeType: S
    - AttributeName: Username
      AttributeType: S
    - AttributeName: Surname
      AttributeType: S
    - AttributeName: Email
      AttributeType: S
  BillingMode: PAY_PER_REQUEST
  KeySchema:      
    - AttributeName: UserId
      KeyType: HASH

错误:

E3039 The set of Attributes in AttributeDefinitions: ['Email', 'Surname', 'UserId', 'Username'] and KeySchemas: ['UserId'] must match at Resources/User/Properties

Answer 1

documentation

The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values.

The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.

这里What is Hash and Range Primary Key?您可以找到详尽的答案。