public void visit(OrderByElement orderBy) {
OrderByElement qualifiedOrderBy = new OrderByElement();
qualifiedOrderBy.setAsc(orderBy.isAsc());
ColumnReference colRef = orderBy.getColumnReference();
ColumnReference qualifiedColRef = ColumnReferenceQualifier.qualify(session, tableAliases,
colRef);
qualifiedOrderBy.setColumnReference(qualifiedColRef);
this._qualifiedOrderBy = qualifiedOrderBy;