schema.xml:
<table name="tb_order" dataNode="dn5,dn6" rule="my_order_rule">
<childTable name="tb_order_detail" primaryKey="id" joinKey="order_id" parentKey="id"/>
</table>
rule.xml:
<tableRule name="my_order_rule">
<rule>
<columns>id</columns>
<algorithm>my_mod_long</algorithm>
</rule>
</tableRule>
表结构: