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

Question

SQS“ ReceiveMessage”端点具有两个似乎做相同事情的参数，而且我不理解API文档。有人可以解释其中的区别：

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

似乎它们都做相同的事情，即指定应在获取的消息上返回哪些属性。 有什么区别吗？如果没有，那是首选？

Answer 1

我现在看到了：

AttributeName返回AWS的属性，例如“ roximatefirstreceivetimestamp”

MessageAttributeName返回消息（用户指定）属性