DynamoDB 遇到不受支持的属性 ProjectionType - 无服务器

Question

我很难理解如何使用无服务器在 DynamoDB 中创建 SecondaryGlobalIndex。这是我到目前为止得到的：

resources:
  Resources:
    ConnectionsTable:
      Type: AWS::DynamoDB::Table
      Properties:
        AttributeDefinitions:
          - AttributeName: connectionId
            AttributeType: S
          - AttributeName: sessionId
            AttributeType: S
          - AttributeName: clientType
            AttributeType: S
        BillingMode: PAY_PER_REQUEST
        KeySchema:
          - AttributeName: connectionId
            KeyType: HASH
          - AttributeName: sessionId
            KeyType: HASH
          - AttributeName: clientType
            KeyType: HASH
        GlobalSecondaryIndexes:
          - IndexName: ConnectionIdIndex
            KeySchema:
              - AttributeName: connectionId
                KeyType: HASH
            Projection:
              NonKeyAttributes:
                - clientType
                - sessionId
            ProjectionType: INCLUDE
        SSESpecification:
          SSEEnabled: true
        TimeToLiveSpecification:
          AttributeName: ttl
          Enabled: true
    SessionHistoryTable:
      Type: AWS::DynamoDB::Table
      Properties:
        AttributeDefinitions:
          - AttributeName: sessionId
            AttributeType: S
        BillingMode: PAY_PER_REQUEST
        KeySchema:
          - AttributeName: sessionId
            KeyType: HASH
        SSESpecification:
          SSEEnabled: true
        TimeToLiveSpecification:
          AttributeName: ttl
          Enabled: true
    SessionsTable:
      Type: AWS::DynamoDB::Table
      Properties:
        AttributeDefinitions:
          - AttributeName: sessionId
            AttributeType: S
        BillingMode: PAY_PER_REQUEST
        KeySchema:
          - AttributeName: sessionId
            KeyType: HASH
        SSESpecification:
          SSEEnabled: true
        TimeToLiveSpecification:
          AttributeName: ttl
          Enabled: true

但是当我尝试部署时出现此错误：

  An error occurred: ConnectionsTable - Encountered unsupported property ProjectionType.

记录的投影类型 here 可以是 ALL | KEYS_ONLY | INCLUDE

我的问题是，我在 dynamoDB yaml 中做错了什么吗？

Answer 1

ProjectionType 和 NonKeyAttributes 是 Projection 的属性，但是 ProjectionType 与边 GlobalSecondaryIndexes

的对齐方式不正确

  GlobalSecondaryIndexes:
    - IndexName: ConnectionIdIndex
      KeySchema:
        - AttributeName: connectionId
          KeyType: HASH
      Projection:
        NonKeyAttributes:
          - clientType
          - sessionId
        ProjectionType: INCLUDE.  <-- aligned incorrect

第二个问题是 KeySchema 应该只包含 HASH 和 RANGE 键，不能有多个 HASH 键。

总体假设connectionId是HASH，sessionId是RANGE键。

  ConnectionsTable:
    Type: AWS::DynamoDB::Table
    Properties:
      AttributeDefinitions:
        - AttributeName: connectionId
          AttributeType: S
        - AttributeName: sessionId
          AttributeType: S
      BillingMode: PAY_PER_REQUEST
      KeySchema:
        - AttributeName: connectionId
          KeyType: HASH
        - AttributeName: sessionId
          KeyType: RANGE
      GlobalSecondaryIndexes:
        - IndexName: ConnectionIdIndex
          KeySchema:
            - AttributeName: connectionId
              KeyType: HASH
          Projection:
            NonKeyAttributes:
              - clientType
              - sessionId
            ProjectionType: INCLUDE
      SSESpecification:
        SSEEnabled: true
      TimeToLiveSpecification:
        AttributeName: ttl
        Enabled: true

Answer 2

在我的例子中，我遇到了这个错误 Encountered unsupported 属性 Attri buteType。刚刚在 AttributeName.

中删除了 space

DynamoDB 遇到不受支持的属性 ProjectionType - 无服务器

DynamoDB Encountered unsupported property ProjectionType - Serverless

amazon-web-services

amazon-dynamodb

serverless

DynamoDB 遇到不受支持的 属性 ProjectionType - 无服务器

DynamoDB Encountered unsupported property ProjectionType - Serverless

amazon-web-services

amazon-dynamodb

serverless

DynamoDB 遇到不受支持的属性 ProjectionType - 无服务器