ALTER TABLE `tasks` ADD COLUMN `customer_chat_id` VARCHAR(128) NOT NULL DEFAULT '' AFTER `owner_userid`;
-- statement-breakpoint
ALTER TABLE `tasks` ADD COLUMN `customer_chat_name` VARCHAR(255) NOT NULL DEFAULT '' AFTER `customer_chat_id`;
-- statement-breakpoint
ALTER TABLE `tasks` ADD COLUMN `join_config_id` VARCHAR(128) NOT NULL DEFAULT '' AFTER `customer_chat_name`;
-- statement-breakpoint
ALTER TABLE `tasks` ADD COLUMN `join_qr_code` TEXT NOT NULL AFTER `join_config_id`;