Update.php

1. 8.x drupal/core/lib/Drupal/Core/Database/Query/Update.php
2. 8.x drupal/core/lib/Drupal/Core/Database/Driver/sqlite/Update.php
3. 8.x drupal/core/lib/Drupal/Core/Database/Driver/mysql/Update.php
4. 8.x drupal/core/lib/Drupal/Core/Database/Driver/pgsql/Update.php
5. 8.x drupal/core/update.php

<?php

/**
 * @file
 * Definition of Drupal\Core\Database\Driver\sqlite\Update
 */
namespace Drupal\Core\Database\Driver\sqlite;

use Drupal\Core\Database\Query\Update as QueryUpdate;
class Update extends QueryUpdate {

}