db->db_debug = false; $this->db->query("ALTER TABLE `logbooks` ADD UNIQUE(`id`);"); $this->db->query("ALTER TABLE `logbooks` ADD INDEX(`id`);"); $this->db->query("ALTER TABLE `logbooks` ADD INDEX(`logbook_name`);"); $this->db->db_debug = true; } public function down() { echo "Not possible, sorry."; } }