<table name="module_extend">
    <column name="parent_module" type="varchar" size="80" notnull="notnull" />
    <column name="extend_module" type="varchar" size="80" notnull="notnull" />
    <column name="type" type="varchar" size="15" notnull="notnull" />
    <column name="kind" type="varchar" size="5" />
</table>
