问题
We can send/receive messages to/from AWS SQS Queue, But Can we update message content which is already in SQS Queue ? If possible , How ?
回答1:
Once a message has been sent to an SQS queue (standard or FIFO), the message is immutable. Additionally, it isn't possible to ask SQS for a specific message by its ID.
The message is essentially inaccessible until received by a consumer.
(Viewing messages in the AWS console might seem to be an exception, but it isn't -- the console acts as a consumer, receives messages, and then resets their visibility timeout so they return to the queue for subsequent redelivery.)
来源：https://stackoverflow.com/questions/48109303/can-we-update-messages-in-aws-sqs-fifo-queue