public function down(Schema $schema)
{
$this->abortIf($this->connection->getDatabasePlatform()->getName() != "mysql");
$this->addSql("ALTER TABLE typo3_typo3cr_domain_model_node CHANGE version version INT NOT NULL");
$this->addSql("DROP INDEX flow3_identity_typo3_typo3cr_domain_model_workspace ON typo3_typo3cr_domain_model_workspace");
}