This corresponds to the clause that is used in some RDBMS engines to provide for
an adjacency-list query.
-A connectby clause is composed as follows:
+The hash for a for clause is composed as follows:
+
+ {
+ start_with => ExpressionList,
+ connect_by => {
+ option => '< PRIOR | NOCYCLE >'
+ cond => ExpressionList,
+ },
+ order_siblings => orderby-clause,
+ }
- Identifier, WhereExpression
+Both the start_with and order_siblings clauses are optional.
=head1 TODO