title: How to update an attribute in one query with dynamodb-data-mapper?
body: <p>The AWS CLI for DynamoDB can update an attribute using one query (without modifying the rest of the item), such as described here : <a href="https://www.dynamodbguide.com/updating-deleting-items" rel="nofollow noreferrer">https://www.dynamodbguide.com/updating-deleting-items</a></p>
  
  <p>I try to do the same using dynamodb-data-mapper, but according to the following example it requires two queries : <a href="https://github.com/awslabs/dynamodb-data-mapper-js#update" rel="nofollow noreferrer">https://github.com/awslabs/dynamodb-data-mapper-js#update</a></p>
  
  <p>Is there a way to achieve the update of an attribute in one query using dynamodb-data-mapper ?</p>