public function up(Schema $schema)
{
$this->abortIf($this->connection->getDatabasePlatform()->getName() != "postgresql");
$this->addSql("CREATE UNIQUE INDEX UNIQ_60A956B9772E836A8D94001992F8FB012D45FE4D ON typo3_typo3cr_domain_model_nodedata (identifier, workspace, dimensionshash, movedto)");
}