CREATE TABLE `zh_change_project_history` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `tid` int(11) NOT NULL COMMENT '标段id',
  `cpid` int(11) NOT NULL COMMENT '变更立项id',
  `info_json` json DEFAULT NULL COMMENT '内容json值',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci COMMENT='变更立项内容临时保存表，用于修订撤销与撤回';

CREATE TABLE `zh_change_apply_history` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `tid` int(11) NOT NULL COMMENT '标段id',
  `caid` int(11) NOT NULL COMMENT '变更申请id',
  `info_json` json DEFAULT NULL COMMENT '内容json值',
  `list_json` json DEFAULT NULL COMMENT '清单json值',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci COMMENT='变更申请内容临时保存表，用于修订撤销与撤回';

CREATE TABLE `zh_change_plan_history` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `tid` int(11) NOT NULL COMMENT '标段id',
  `cpid` int(11) NOT NULL COMMENT '变更方案id',
  `info_json` json DEFAULT NULL COMMENT '内容json值',
  `list_json` json DEFAULT NULL COMMENT '清单json值',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci COMMENT='变更方案内容临时保存表，用于修订撤销与撤回';