describe method on daoFactory

lib/dao-factory.js

@@ -528,6 +528,10 @@ module.exports = (function() {
     return this.QueryInterface.bulkUpdate(this.tableName, attrValueHash, where)
   }
 
+  DAOFactory.prototype.describe = function() {
+    return this.QueryInterface.describeTable(this.tableName)
+  }
+
   // private
 
   var query = function() {