203 lines
7.5 KiB
SQL
203 lines
7.5 KiB
SQL
-- 创建优化历史功能相关表
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-- 执行此脚本前请备份数据库
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-- 1. 创建历史记录表
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CREATE TABLE IF NOT EXISTS prompt_history (
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id INT PRIMARY KEY AUTO_INCREMENT COMMENT '主键ID',
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user_id INT NOT NULL COMMENT '用户ID',
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wx_user_id INT COMMENT '微信用户ID',
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original_input TEXT NOT NULL COMMENT '原始输入',
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generated_prompt TEXT NOT NULL COMMENT '生成的提示词',
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template_id INT COMMENT '使用的模板ID',
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template_name VARCHAR(100) COMMENT '模板名称',
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generation_time INT COMMENT '生成耗时(毫秒)',
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satisfaction_rating TINYINT COMMENT '满意度评分(1-5)',
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tags JSON COMMENT '标签列表',
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is_favorite BOOLEAN DEFAULT FALSE COMMENT '是否收藏',
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
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updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
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INDEX idx_user_id (user_id),
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INDEX idx_wx_user_id (wx_user_id),
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INDEX idx_created_at (created_at),
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INDEX idx_template_id (template_id),
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INDEX idx_is_favorite (is_favorite),
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INDEX idx_satisfaction_rating (satisfaction_rating)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='提示词历史记录表';
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-- 2. 创建历史标签表
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CREATE TABLE IF NOT EXISTS history_tags (
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id INT PRIMARY KEY AUTO_INCREMENT COMMENT '主键ID',
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history_id INT NOT NULL COMMENT '历史记录ID',
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tag_name VARCHAR(50) NOT NULL COMMENT '标签名称',
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tag_type VARCHAR(20) DEFAULT 'custom' COMMENT '标签类型',
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
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FOREIGN KEY (history_id) REFERENCES prompt_history(id) ON DELETE CASCADE,
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INDEX idx_history_id (history_id),
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INDEX idx_tag_name (tag_name),
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INDEX idx_tag_type (tag_type)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='历史记录标签表';
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-- 3. 创建用户统计表
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CREATE TABLE IF NOT EXISTS user_statistics (
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id INT PRIMARY KEY AUTO_INCREMENT COMMENT '主键ID',
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user_id INT UNIQUE NOT NULL COMMENT '用户ID',
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total_generations INT DEFAULT 0 COMMENT '总生成数',
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favorite_count INT DEFAULT 0 COMMENT '收藏数',
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avg_rating DECIMAL(3,2) DEFAULT 0.00 COMMENT '平均评分',
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last_generation_at TIMESTAMP NULL COMMENT '最后生成时间',
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
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updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
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INDEX idx_user_id (user_id),
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INDEX idx_total_generations (total_generations),
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INDEX idx_last_generation_at (last_generation_at)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='用户统计信息表';
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-- 4. 添加外键约束（如果存在相关表）
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-- 注意：这些外键约束是可选的，根据实际数据库结构调整
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-- 如果存在user表，添加外键约束
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-- ALTER TABLE prompt_history ADD CONSTRAINT fk_prompt_history_user_id
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-- FOREIGN KEY (user_id) REFERENCES user(uid) ON DELETE CASCADE;
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-- 如果存在wx_user表，添加外键约束
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-- ALTER TABLE prompt_history ADD CONSTRAINT fk_prompt_history_wx_user_id
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-- FOREIGN KEY (wx_user_id) REFERENCES wx_user(id) ON DELETE SET NULL;
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-- 如果存在prompt_template表，添加外键约束
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-- ALTER TABLE prompt_history ADD CONSTRAINT fk_prompt_history_template_id
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-- FOREIGN KEY (template_id) REFERENCES prompt_template(id) ON DELETE SET NULL;
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-- 5. 创建一些示例数据（可选）
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-- INSERT INTO user_statistics (user_id, total_generations, favorite_count, avg_rating)
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-- VALUES (1, 0, 0, 0.00);
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-- 6. 创建视图（可选，用于统计查询）
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CREATE OR REPLACE VIEW history_statistics AS
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SELECT
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h.user_id,
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COUNT(*) as total_count,
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COUNT(CASE WHEN h.is_favorite = TRUE THEN 1 END) as favorite_count,
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AVG(h.satisfaction_rating) as avg_rating,
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MAX(h.created_at) as last_generation_at,
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COUNT(CASE WHEN h.created_at >= DATE_SUB(NOW(), INTERVAL 7 DAY) THEN 1 END) as week_count,
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COUNT(CASE WHEN h.created_at >= DATE_SUB(NOW(), INTERVAL 30 DAY) THEN 1 END) as month_count
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FROM prompt_history h
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GROUP BY h.user_id;
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-- 7. 创建存储过程（可选，用于清理旧数据）
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DELIMITER //
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CREATE PROCEDURE CleanOldHistory(IN days_to_keep INT)
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BEGIN
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DECLARE EXIT HANDLER FOR SQLEXCEPTION
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BEGIN
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ROLLBACK;
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RESIGNAL;
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END;
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START TRANSACTION;
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-- 删除指定天数前的历史记录
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DELETE FROM prompt_history
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WHERE created_at < DATE_SUB(NOW(), INTERVAL days_to_keep DAY);
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-- 更新用户统计
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UPDATE user_statistics us
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SET
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total_generations = (
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SELECT COUNT(*) FROM prompt_history h
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WHERE h.user_id = us.user_id
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),
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favorite_count = (
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SELECT COUNT(*) FROM prompt_history h
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WHERE h.user_id = us.user_id AND h.is_favorite = TRUE
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),
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avg_rating = (
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SELECT AVG(h.satisfaction_rating) FROM prompt_history h
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WHERE h.user_id = us.user_id AND h.satisfaction_rating IS NOT NULL
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),
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last_generation_at = (
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SELECT MAX(h.created_at) FROM prompt_history h
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WHERE h.user_id = us.user_id
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),
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updated_at = NOW()
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WHERE us.user_id IN (
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SELECT DISTINCT user_id FROM prompt_history
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);
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COMMIT;
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END //
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DELIMITER ;
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-- 8. 创建触发器（可选，用于自动更新统计）
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DELIMITER //
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CREATE TRIGGER update_user_stats_after_insert
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AFTER INSERT ON prompt_history
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FOR EACH ROW
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BEGIN
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INSERT INTO user_statistics (user_id, total_generations, favorite_count, avg_rating, last_generation_at)
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VALUES (NEW.user_id, 1, IF(NEW.is_favorite, 1, 0), NEW.satisfaction_rating, NEW.created_at)
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ON DUPLICATE KEY UPDATE
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total_generations = total_generations + 1,
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favorite_count = favorite_count + IF(NEW.is_favorite, 1, 0),
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avg_rating = (
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SELECT AVG(satisfaction_rating)
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FROM prompt_history
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WHERE user_id = NEW.user_id AND satisfaction_rating IS NOT NULL
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),
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last_generation_at = NEW.created_at,
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updated_at = NOW();
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END //
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DELIMITER ;
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DELIMITER //
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CREATE TRIGGER update_user_stats_after_update
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AFTER UPDATE ON prompt_history
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FOR EACH ROW
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BEGIN
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UPDATE user_statistics
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SET
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total_generations = (
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SELECT COUNT(*) FROM prompt_history WHERE user_id = NEW.user_id
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),
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favorite_count = (
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SELECT COUNT(*) FROM prompt_history
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WHERE user_id = NEW.user_id AND is_favorite = TRUE
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),
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avg_rating = (
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SELECT AVG(satisfaction_rating) FROM prompt_history
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WHERE user_id = NEW.user_id AND satisfaction_rating IS NOT NULL
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),
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updated_at = NOW()
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WHERE user_id = NEW.user_id;
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END //
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DELIMITER ;
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DELIMITER //
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CREATE TRIGGER update_user_stats_after_delete
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AFTER DELETE ON prompt_history
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FOR EACH ROW
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BEGIN
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UPDATE user_statistics
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SET
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total_generations = (
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SELECT COUNT(*) FROM prompt_history WHERE user_id = OLD.user_id
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),
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favorite_count = (
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SELECT COUNT(*) FROM prompt_history
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WHERE user_id = OLD.user_id AND is_favorite = TRUE
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),
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avg_rating = (
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SELECT AVG(satisfaction_rating) FROM prompt_history
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WHERE user_id = OLD.user_id AND satisfaction_rating IS NOT NULL
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),
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updated_at = NOW()
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WHERE user_id = OLD.user_id;
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END //
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DELIMITER ;
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-- 执行完成提示
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SELECT '历史记录表创建完成！' as message;
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