For the UpdateItem operation, represents the attributes to be modified, the action to perform on each, and the new value for each.

You cannot use UpdateItem to update any primary key attributes. Instead,

you will need to delete the item, and then use PutItem to create a new item with new attributes.

Attribute values cannot be null; string and binary type attributes must

have lengths greater than zero; and set type attributes must not be empty. Requests with empty values will be rejected with a ValidationException exception.

AttributeValueUpdate is referenced in 5 repositories