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-- Demo 表(演示 MyBatis Plus CRUD)
CREATE TABLE IF NOT EXISTS `demo_items` (
  `id` BIGINT NOT NULL AUTO_INCREMENT COMMENT '主键 ID',
  `title` VARCHAR(255) NOT NULL COMMENT '标题',
  `content` TEXT COMMENT '内容',
  `create_time` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
  `update_time` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
  `deleted` TINYINT NOT NULL DEFAULT 0 COMMENT '逻辑删除(0=未删除,1=已删除)',
  PRIMARY KEY (`id`),
  INDEX `idx_create_time` (`create_time`),
  INDEX `idx_deleted` (`deleted`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='Demo 示例表';

-- 插入测试数据
INSERT INTO `demo_items` (`title`, `content`) VALUES
('Hello World', '这是第一条测试数据'),
('Spring Boot Demo', '运行在 HuggingFace Space 上的应用'),
('MySQL + Redis', 'SQLPub + Upstash 零成本方案');