Nodejs DynamoDB只有没有范围的CreateTable哈希返回ValidationException

Question

我试图通过他们在nodejs上的aws-sdk在dynamodb上创建一个表.下面是我在dynamodb.createTable上传递的参数:

{
    TableName: 'new_table',
    ProvisionedThroughput: {
        ReadCapacityUnits: 1,
        WriteCapacityUnits: 1
    },
    KeySchema: [
        {AttributeName: 'primary_key', KeyType: 'HASH'}
    ],
    AttributeDefinitions: [
        {AttributeName: 'primary_key', AttributeType: 'S'},
        {AttributeName: 'some_attribute', AttributeType: 'S'}
    ]
}

这回来了

ValidationException: One or more parameter values were invalid: Number of attributes in KeySchema does not exactly match number of attributes defined in AttributeDefinitions

我通过在'KeySchema'上添加'some_attribute'来解决这个问题,但我想要的是一个没有'range'的'hash'表.

Answer 1

已解决:创建表时,只需指定KeySchema属性,而不是指定要放在表中的所有属性.所以在我的情况下,我只需要指定'primary_key'

{
    TableName: 'new_table',
    ProvisionedThroughput: {
        ReadCapacityUnits: 1,
        WriteCapacityUnits: 1
    },
    KeySchema: [
        {AttributeName: 'primary_key', KeyType: 'HASH'}
    ],
    AttributeDefinitions: [
        {AttributeName: 'primary_key', AttributeType: 'S'},
    ]
}