-- DropForeignKey
ALTER TABLE `testimonials` DROP FOREIGN KEY `testimonials_user_id_fkey`;

-- AlterTable
ALTER TABLE `testimonials`
    ADD COLUMN `author_first_name` VARCHAR(255) NULL,
    ADD COLUMN `author_last_name` VARCHAR(255) NULL,
    MODIFY `user_id` INTEGER NULL;

-- AddForeignKey
ALTER TABLE `testimonials` ADD CONSTRAINT `testimonials_user_id_fkey` FOREIGN KEY (`user_id`) REFERENCES `users`(`id`) ON DELETE SET NULL ON UPDATE CASCADE;