CREATE TABLE `ai_grade_log` (
	`id` bigint AUTO_INCREMENT NOT NULL,
	`child_user_id` bigint NOT NULL,
	`paper_id` varchar(191) NOT NULL,
	`question_index` int NOT NULL,
	`oss_key` varchar(300) NOT NULL,
	`status` varchar(20) NOT NULL,
	`earned` int NOT NULL DEFAULT 0,
	`points` int NOT NULL DEFAULT 0,
	`verdict` text,
	`mock` boolean NOT NULL DEFAULT false,
	`model` varchar(60),
	`ms` int,
	`created_at` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP,
	CONSTRAINT `ai_grade_log_id` PRIMARY KEY(`id`)
);
--> statement-breakpoint
ALTER TABLE `ai_grade_log` ADD CONSTRAINT `ai_grade_log_child_user_id_user_id_fk` FOREIGN KEY (`child_user_id`) REFERENCES `user`(`id`) ON DELETE cascade ON UPDATE no action;
--> statement-breakpoint
CREATE INDEX `idx_ai_grade_child_date` ON `ai_grade_log` (`child_user_id`,`created_at`);
--> statement-breakpoint
CREATE INDEX `idx_ai_grade_paper_q` ON `ai_grade_log` (`child_user_id`,`paper_id`,`question_index`);