-- AlterTable
ALTER TABLE `product` ADD COLUMN `demoLink` VARCHAR(191) NULL,
    ADD COLUMN `discount` DECIMAL(5, 2) NULL,
    ADD COLUMN `externalLink` VARCHAR(191) NULL,
    ADD COLUMN `isFree` BOOLEAN NOT NULL DEFAULT false,
    ADD COLUMN `previewImage` VARCHAR(191) NULL,
    MODIFY `fileUrl` VARCHAR(191) NULL;
