/**
* Register column schema supplied by database.
*
* @param string $name Column name.
* @param mixed $schema Driver specific column information schema.
* @return AbstractColumn
*/
protected function registerColumn($name, $schema)
{
$column = $this->driver->columnSchema($this, $name, $schema);
$this->dbColumns[$name] = clone $column;
return $this->columns[$name] = $column;
}
