public function down(Schema $schema)
{
$this->abortIf($this->connection->getDatabasePlatform()->getName() != "postgresql");
$this->addSql("ALTER TABLE typo3_typo3_domain_model_user DROP CONSTRAINT FK_E3F98B1321E3D446");
$this->addSql("ALTER TABLE typo3_typo3_domain_model_domain DROP CONSTRAINT FK_F227E8F6694309E4");
$this->addSql("ALTER TABLE typo3_typo3_domain_model_user DROP CONSTRAINT FK_E3F98B13E931A6F5");
$this->addSql("DROP TABLE typo3_typo3_domain_model_domain");
$this->addSql("DROP TABLE typo3_typo3_domain_model_site");
$this->addSql("DROP TABLE typo3_typo3_domain_model_user");
$this->addSql("DROP TABLE typo3_typo3_domain_model_userpreferences");
}