text: CREATE TABLE `metric_class_coupling`  (
    `id` bigint(20) NOT NULL AUTO_INCREMENT,
    `project_id` BIGINT      NOT NULL,
    `class_id` varchar(255) NOT NULL,
    `outer_instability_avg` decimal(8,4) NOT NULL,
    `outer_instability_med` decimal(8,4) NOT NULL,
    `outer_coupling_avg` decimal(8,4) NOT NULL,
    `outer_coupling_med` decimal(8,4) NOT NULL,
    `inner_instability_avg` decimal(8,4) NOT NULL,
    `inner_instability_med` decimal(8,4) NOT NULL,
    `inner_coupling_avg` decimal(8,4) NOT NULL,
    `inner_coupling_med` decimal(8,4) NOT NULL,
    PRIMARY KEY (`id`)
  ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
  