SQS ReceiveMessage中的“MessageAttributeName.N”和“AttributeName.N”有什么区别

Question

SQS“ReceiveMessage”端点有两个似乎做同样事情的参数，我不理解 API 文档。谁能解释一下区别：

https://docs.aws.amazon.com/AWSSimpleQueueService/latest/APIReference/API_ReceiveMessage.html

AttributeName.N
A list of attributes that need to be returned along with each message

MessageAttributeName.N
The name of the message attribute, where N is the index.
...
When using ReceiveMessage, you can send a list of attribute names to receive, or you can return all of the attributes by specifying All

似乎它们都做同样的事情，即指定应在获取的消息上返回哪些属性。 有什么区别吗？如果不是，哪个是首选？

Answer 1

我现在看到了：

AttributeName 返回 AWS 的属性，例如“ApproximateFirstReceiveTimestamp”

MessageAttributeName 返回消息（用户指定）属性