Since this task involves making changes to some of core functionality, I figured it's best if I share my intents for completing this task.
This change is a little more involved as it requires modifying the Catalog trait. My current plan is to add an abstract method to the Catalog trait and have any objects extending Catalog override a 'listTables' method. The SQLContext object uses an instance of SimpleCatalog for any table operations. Any additional public method defined to list the tables will delegate to the SimpleCatalog instance. This approach follows the pattern used for registering tables with the SQLContext. Any feedback is appreciated. Thanks, Bill
