public function up(Schema $schema)
{
$this->abortIf($this->connection->getDatabasePlatform()->getName() != "mysql");
$this->addSql("UPDATE typo3_typo3cr_domain_model_nodedata SET contentobjectproxy = NULL, nodetype = 'TYPO3.Neos:Shortcut' WHERE parentpath = '/sites' AND nodetype = 'unstructured'");
}