DBXL v2.3 allows you to map your DBXL xml documents into a SharePoint form library. You can use the "Publish Library and XSN" checkbox to create a new form library or update an existing one.
However, if you promote a field as “Description”, the SharePoint form library will not display the column, even though it seems configured properly in both SharePoint and InfoPath. No errors are displayed in the Event Viewer. This is an issue that we will continue to investigate going forward and address for DBXL v2.4.
As a workaround, when you promote that field, name it something other than “Description”.