Fix argument to getDao in dropTable. closes #3024

lib/query-interface.js

@@ -188,7 +188,7 @@ module.exports = (function() {
       // enum type within the table and attribute
       if (self.sequelize.options.dialect === 'postgres') {
         // Find the table that we're trying to drop
-        var daoTable = self.sequelize.daoFactoryManager.getDAO(tableName, 'tableName');
+        var daoTable = self.sequelize.daoFactoryManager.getDAO(tableName, { attribute: 'tableName' });
 
         if (!!daoTable) {
           var getTableName = (!options || !options.schema || options.schema === 'public' ? '' : options.schema + '_') + tableName;