/** * Add a column * * @param string $table_name the name of the table * @param string $column_name the column name * @param string $type the column type * @param array|string $options * * @return boolean */ public function add_column($table_name, $column_name, $type, $options = array()) { return $this->_adapter->add_column($table_name, $column_name, $type, $options); }