public function up(Schema $schema)
{
$this->abortIf($this->connection->getDatabasePlatform()->getName() != "mysql");
$this->addSql("ALTER TABLE typo3_typo3cr_domain_model_workspace DROP FOREIGN KEY FK_71DE9CFBA762B951");
$this->addSql("DROP INDEX IDX_71DE9CFB750166F ON typo3_typo3cr_domain_model_workspace");
$this->addSql("ALTER TABLE typo3_typo3cr_domain_model_workspace CHANGE rootnode rootnodedata VARCHAR(40) DEFAULT NULL");
$this->addSql("ALTER TABLE typo3_typo3cr_domain_model_workspace ADD CONSTRAINT FK_71DE9CFBBB46155 FOREIGN KEY (rootnodedata) REFERENCES typo3_typo3cr_domain_model_nodedata (persistence_object_identifier)");
$this->addSql("CREATE INDEX IDX_71DE9CFBBB46155 ON typo3_typo3cr_domain_model_workspace (rootnodedata)");
}