/**
* Change 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 $options
*
* @return boolean
*/
public function change_column($table_name, $column_name, $type, $options = array())
{
return $this->_adapter->change_column($table_name, $column_name, $type, $options);
}