mand">COPY</code>
         does fire triggers, so you can use it normally if you use the trigger
         approach.
        </p><p>
         Another disadvantage of the rule approach is that there is no simple
         way to force an error if the set of rules doesn't cover the insertion
         date; the data will silently go into the root table instead.
        </p></li><li class="listitem"><p>
         Ensure that the <a class="xref" href="runtime-config-query.html#GUC-CONSTRAINT-EXCLUSION">constraint_e