CREATE TABLE IF NOT EXISTS `#__testquestions_categories` (
  `id` int unsigned NOT NULL AUTO_INCREMENT,
  `title` varchar(150) NOT NULL,
  `published` tinyint NOT NULL DEFAULT 1,
  `ordering` int NOT NULL DEFAULT 0,
  PRIMARY KEY (`id`),
  UNIQUE KEY `idx_title` (`title`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 DEFAULT COLLATE=utf8mb4_unicode_ci;

INSERT IGNORE INTO `#__testquestions_categories` (`id`, `title`, `published`, `ordering`)
VALUES (1, 'Bez kategorii', 1, 0);

ALTER TABLE `#__testquestions_questions`
  ADD COLUMN `category_id` int unsigned NOT NULL DEFAULT 1 AFTER `id`,
  ADD COLUMN `time_limit` smallint unsigned NOT NULL DEFAULT 60 AFTER `category_id`,
  ADD COLUMN `points` tinyint unsigned NOT NULL DEFAULT 1 AFTER `time_limit`;