ALTER TABLE `is_training_material`
MODIFY COLUMN `description`  varchar(1024) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT '商品描述' AFTER `bar_code`;

ALTER TABLE `is_training_paper`
ADD COLUMN `is_gap_auto_read`  int(2) NULL COMMENT '填空题是否系统自动审批' AFTER `is_auto_read`;

