SqlHelper::getColumnTypeByField

public function getColumnTypeByField(ORMFieldsScalarField $field);

/**
 * Returns instance of a descendant from EntityScalarField
 * that matches database type.
 *
 * @param string $name Database column name.
 * @param mixed $type Database specific type.
 * @param array | null $parameters Additional information.
 *
 * @return BitrixMainORMFieldsScalarField
 */
abstract public function getFieldByColumnType($name, $type, array $parameters = null);

/**
 * Returns ascending order specifier for ORDER BY clause.
 *
 * @return string
 */
public function getAscendingOrder()
{
	return 'ASC';
}