public function up(Schema $schema)
{
$this->abortIf($this->connection->getDatabasePlatform()->getName() != "mysql");
$this->addSql("UPDATE typo3_typo3cr_domain_model_nodedata SET properties = REPLACE(properties, 'O:37:\"TYPO3\\\\Media\\\\Domain\\\\Model\\\\ImageVariant\"', 'a');");
}