public function down(Schema $schema)
{
$this->abortIf($this->connection->getDatabasePlatform()->getName() != 'postgresql', 'Migration can only be executed safely on "postgresql".');
$this->addSql("UPDATE neos_media_domain_model_asset SET dtype = REPLACE(dtype, 'neos_media_', 'typo3_media_')");
$this->addSql("UPDATE neos_media_domain_model_adjustment_abstractimageadjustment SET dtype = REPLACE(dtype, 'neos_media_', 'typo3_media_')");
}