public function down(Schema $schema)
{
$this->abortIf($this->connection->getDatabasePlatform()->getName() != "postgresql");
$this->addSql("TRUNCATE TABLE typo3_neos_eventlog_domain_model_event");
$this->addSql("ALTER TABLE typo3_neos_eventlog_domain_model_event ALTER data TYPE TEXT");
$this->addSql("ALTER TABLE typo3_neos_eventlog_domain_model_event ALTER data DROP DEFAULT");
$this->addSql("ALTER INDEX eventtype RENAME TO neos_eventlog_eventtype");
$this->addSql("ALTER INDEX documentnodeidentifier RENAME TO neos_eventlog_documentnodeidentifier");
}