New CloudWatch metric for Amazon DynamoDB Time-to-Live (TTL) to track expired item deletions

Earlier this year, Amazon DynamoDB released Time-to-Live (TTL), which automatically deletes expired items from your tables, at no additional cost. TTL eliminates the complexity and cost of scanning tables and deleting items that you don’t want to retain, saving you money on provisioned throughput and storage.
Quelle: aws.amazon.com