ALTER TABLE `users` MODIFY COLUMN `openId` varchar(64);--> statement-breakpoint
ALTER TABLE `users` MODIFY COLUMN `email` varchar(320) NOT NULL;--> statement-breakpoint
ALTER TABLE `users` MODIFY COLUMN `loginMethod` varchar(64) DEFAULT 'local';--> statement-breakpoint
ALTER TABLE `users` ADD `passwordHash` varchar(255);--> statement-breakpoint
ALTER TABLE `users` ADD CONSTRAINT `users_email_unique` UNIQUE(`email`);