A row instance contains the RowStatus object to configure
the association between a policy and a policy group. A row
instance can be created or removed by the system or by setting
the appropriate value of the RowStatus object.
A row instance is indexed by a policy name and a policy group
name. The policy name index must exist in cpgPolicyTable. The
policy group name index must exist in cpgGroupTable. If a policy
group is removed from cpgGroupTable, entries in this table
using this group as an index will be automatically removed.