silverstripe-framework/tests/php/ORM/VersionedTest/WithIndexes.php

<?php

namespace SilverStripe\ORM\Tests\VersionedTest;

use SilverStripe\Dev\TestOnly;
use SilverStripe\ORM\DataObject;
use SilverStripe\ORM\Versioning\Versioned;

/**
 * @mixin Versioned
 */
class WithIndexes extends DataObject implements TestOnly
{
	private static $table_name = 'VersionedTest_WithIndexes';

	private static $db = array(
		'UniqA' => 'Int',
		'UniqS' => 'Int',
	);

	private static $extensions = array(
		Versioned::class
	);

	private static $indexes = [
		'UniqS_idx' => 'unique ("UniqS")',
		'UniqA_idx' => [
			'type' => 'unique',
			'name' => 'UniqA_idx',
			'value' => '"UniqA"',
		],
	];

}