amazon-web-services - 通过 updateTable 创建多个 GSI - DynamoDB

Question

我正在使用 updateTable在 DynmaoDB 中，根据文档，如果我们要创建多个全局二级索引 (GSI)，我们需要在“GlobalSecondaryIndexUpdates”字段中有多个对象，因此我传递了以下参数，但它不会更新 GSI；但是，如果我只是创建一个 GSI(在“GlobalSecondaryIndexUpdates”字段中传递一个对象，它可以工作)；这是我为创建多个 GSI 而传递的参数:

{
    "TableName": "movies",
    "AttributeDefinitions": [{
            "AttributeName": "id",
            "AttributeType": "N"
        }, {
            "AttributeName": "title",
            "AttributeType": "S"
        }, {
            "AttributeName": "subtitle",
            "AttributeType": "S"
        }],
    "GlobalSecondaryIndexUpdates": [{
            "Create": {
                "IndexName": "title",
                "ProvisionedThroughput": {
                    "ReadCapacityUnits": "5",
                    "WriteCapacityUnits": "5"
                },
                "KeySchema": [{
                        "AttributeName": "title",
                        "KeyType": "HASH"
                    }],
                "Projection": {
                    "ProjectionType": "ALL"
                }
            }
        }, {
            "Create": {
                "IndexName": "subtitle",
                "ProvisionedThroughput": {
                    "ReadCapacityUnits": "5",
                    "WriteCapacityUnits": "5"
                },
                "KeySchema": [{
                        "AttributeName": "subtitle",
                        "KeyType": "HASH"
                    }],
                "Projection": {
                    "ProjectionType": "ALL"
                }
            }
        }]
}

我是否以错误的格式传递参数？

Answer 1

来自 DynamoDB documentation :

You can only create or delete one global secondary index per UpdateTable operation. However, if you run multiple UpdateTable operations simultaneously, you can create multiple indexes at a time. You can run up to five of these UpdateTable operations on a table at once, and each operation can create exactly one index.