Returns a reference to the order by array for this query.
Because this method returns by reference, alter hooks may edit the order-by array directly to make their changes. If just adding additional ordering fields, however, the use of orderBy() is preferred.
Note that this method must be called by reference as well:
$fields =& $query->getOrderBy();
array: A reference to the expression array structure.
includes/ database/ select.inc, line 103
- Interface definition for a Select Query object.
public function &getOrderBy();