array( $this->table_prefix . 'users' => array( 'user_newpasswd' => array('VCHAR:255', ''), ), ), ); } public function revert_schema() { return array( 'change_columns' => array( $this->table_prefix . 'users' => array( 'user_newpasswd' => array('VCHAR:40', ''), ), ), ); } }