CREATE TABLE IF NOT EXISTS `apple_iap_transactions` (
    `id` bigint(20) NOT NULL AUTO_INCREMENT,
    `user_id` bigint(20) NOT NULL COMMENT 'User ID',
    `original_transaction_id` varchar(255) NOT NULL COMMENT 'Original Transaction ID',
    `transaction_id` varchar(255) NOT NULL COMMENT 'Transaction ID',
    `product_id` varchar(255) NOT NULL COMMENT 'Product ID',
    `purchase_at` datetime NOT NULL COMMENT 'Purchase Time',
    `revocation_at` datetime DEFAULT NULL COMMENT 'Revocation Time',
    `jws_hash` varchar(255) NOT NULL COMMENT 'JWS Hash',
    `created_at` datetime DEFAULT NULL COMMENT 'Create Time',
    `updated_at` datetime DEFAULT NULL COMMENT 'Update Time',
    PRIMARY KEY (`id`),
    UNIQUE KEY `uni_original` (`original_transaction_id`),
    KEY `idx_user_id` (`user_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci;