<changelog xmlns="http://www.codesynthesis.com/xmlns/odb/changelog" database="sqlite" version="1">
  <model version="2">
    <table name="object">
      <column name="id" type="INTEGER" null="false"/>
      <column name="o1" type="INTEGER" null="true"/>
      <primary-key auto="true">
        <column name="id"/>
      </primary-key>
      <foreign-key name="o1_fk" deferrable="DEFERRED">
        <column name="o1"/>
        <references table="object1">
          <column name="id"/>
        </references>
      </foreign-key>
    </table>
    <table name="object1">
      <column name="id" type="INTEGER" null="false"/>
      <primary-key>
        <column name="id"/>
      </primary-key>
    </table>
  </model>
</changelog>