\cdbproperty{SortOrder}{}

A list property which determines the preferred order of objects when
a \subscommand{prodsort} command is used. 
\begin{screen}{1,2}
{B,A,C,A_{m}}::SortOrder.
A A_{m} B C;
@prodsort!(%);
B A C A_{m};
\end{screen}
As indicated in the example above, any type of object can appear in
the list.

\cdbseealgo{prodsort}

