-- 为云端常量表添加文件相关字段
ALTER TABLE cloud_constants ADD COLUMN file_path VARCHAR(500);
ALTER TABLE cloud_constants ADD COLUMN file_size BIGINT DEFAULT 0;
ALTER TABLE cloud_constants ADD COLUMN mime_type VARCHAR(100);
ALTER TABLE cloud_constants ADD COLUMN original_name VARCHAR(255);

-- 为云端变量表添加文件相关字段
ALTER TABLE cloud_variables ADD COLUMN file_path VARCHAR(500);
ALTER TABLE cloud_variables ADD COLUMN file_size BIGINT DEFAULT 0;
ALTER TABLE cloud_variables ADD COLUMN mime_type VARCHAR(100);
ALTER TABLE cloud_variables ADD COLUMN original_name VARCHAR(255);