public function up(Schema $schema)
{
$this->abortIf($this->connection->getDatabasePlatform()->getName() != "postgresql");
$this->addSql("ALTER TABLE typo3_media_domain_model_asset ADD caption TEXT NOT NULL");
$this->addSql("ALTER TABLE typo3_media_domain_model_asset ADD lastmodified TIMESTAMP(0) WITHOUT TIME ZONE NOT NULL");
}