public function up(Schema $schema)
{
$this->abortIf($this->connection->getDatabasePlatform()->getName() != "postgresql");
$this->addSql("ALTER TABLE typo3_typo3cr_domain_model_nodedata ALTER properties TYPE bytea USING DECODE(properties, 'escape')");
$this->addSql("COMMENT ON COLUMN typo3_typo3cr_domain_model_nodedata.properties IS '(DC2Type:objectarray)'");
}