title: How can I Scan an index in reverse in DynamoDB?
body: <p>I am currently using DynamoDB and having a problem scanning. I am able to get paged results in forward order by using the ExclusiveStartKey. However, regardless of whether I set <code>ScanIndexForward</code> true or false, I get results in forward order from my scan operation. How can i get results in reverse order from a <code>Scan</code> in DynamoDB? </p>