2' class='name'>FK_PREVIOUSEDITION</td>
		<td class='description right'>[foreign key, with no action]</td>
	</tr>
	<tr>
		<td class='spacer'> 1</td>
		<td class='minwidth'>ID ←(0..1) <a href='#books_f4a675c8'>PREVIOUSEDITIONID</a></td>
		<td class='minwidth'></td>
	</tr>
	<tr>
		<td colspan='3'></td>
	</tr>
	<tr>
		<td colspan='3' class='section'>Indexes</td>
	</tr>
	<tr>
		<td colspan='3'></td>
	</tr>
	<tr>
		<td colspan='2' class='name'>PK_BOOKS</td>
		<td class='description right'>[unique index]</td>
	