gistfile1.xml

<table name="store_category" phpName="store_category">
		<vendor type="mysql">
			<parameter name="Charset" value="utf8"/>
		</vendor>
		<behavior name="timestampable"/>
		<column name="id" type="integer" required="true" primaryKey="true" autoIncrement="true"/>
		<column name="name" type="varchar" required="true"/>
		<column name="parent_id" type="integer" required="false"/>
		<column name="is_displayed" type="boolean" required="true"/>
		<foreign-key foreignTable="store_category" onDelete="CASCADE" onUpdate="CASCADE">
			<reference local="parent_id" foreign="id"/>
		</foreign-key>
	</table>