public function up(Schema $schema)
{
switch ($this->connection->getDatabasePlatform()->getName()) {
case 'sqlite':
$this->addSql('ALTER TABLE ' . $this->getTable('oauth2_clients') . ' ADD name longtext DEFAULT NULL');
break;
case 'mysql':
$this->addSql('ALTER TABLE ' . $this->getTable('oauth2_clients') . ' ADD name longtext COLLATE \'utf8_unicode_ci\' DEFAULT NULL');
break;
case 'postgresql':
$this->addSql('ALTER TABLE ' . $this->getTable('oauth2_clients') . ' ADD name text DEFAULT NULL');
}
}