mysql-kit: fix GENERATED ALWAYS AS ... NOT NULL;

[juliusmarminge]

GENERATED ALWAYS AS must precede NOT NULL:

Note

From MySQL Docs:

Let me know if I should revert Postgres and SQLite

• PG seems to accept NOT NULL GENERATED AS ...
  

• Didn't test SQLite

Example:

CREATE TABLE `no-work` (
	`id` varchar(36) NOT NULL,
	`download_url` varchar(2048),
	`created_at` timestamp NOT NULL DEFAULT current_timestamp(),
	`app_id` varchar(36) NOT NULL,
	`marked_for_deletion` tinyint (1) NOT NULL DEFAULT '0',
	`file_key` varchar(300) NOT NULL,
	`upload_failed` tinyint (1) DEFAULT '0',
	`deleted_at` timestamp NULL,
	`callback_response` int,
	`status` varchar(32) NOT NULL GENERATED ALWAYS AS (
  --                                  ^ Syntax error ❌
		CASE WHEN `deleted_at` IS NOT NULL THEN
			_utf8mb4 'Deleted'
		WHEN `marked_for_deletion` = 1 THEN
			_utf8mb4 'Deletion Pending'
		WHEN `upload_failed` = 1 THEN
			_utf8mb4 'Failed'
		WHEN `callback_response` IS NOT NULL
			AND `callback_response` != 200 THEN
			_utf8mb4 'Callback Failed'
		WHEN `download_url` IS NOT NULL THEN
			_utf8mb4 'Uploaded'
		ELSE
			_utf8mb4 'Uploading'
		END) STORED,
	PRIMARY KEY (`id`)) ENGINE InnoDB,
CHARSET utf8mb4,
COLLATE utf8mb4_0900_ai_ci;

CREATE TABLE `works` (
	`id` varchar(36) NOT NULL,
	`download_url` varchar(2048),
	`created_at` timestamp NOT NULL DEFAULT current_timestamp(),
	`app_id` varchar(36) NOT NULL,
	`marked_for_deletion` tinyint (1) NOT NULL DEFAULT '0',
	`file_key` varchar(300) NOT NULL,
	`upload_failed` tinyint (1) DEFAULT '0',
	`deleted_at` timestamp NULL,
	`callback_response` int,
	`status` varchar(32) GENERATED ALWAYS AS (
		CASE WHEN `deleted_at` IS NOT NULL THEN
			_utf8mb4 'Deleted'
		WHEN `marked_for_deletion` = 1 THEN
			_utf8mb4 'Deletion Pending'
		WHEN `upload_failed` = 1 THEN
			_utf8mb4 'Failed'
		WHEN `callback_response` IS NOT NULL
			AND `callback_response` != 200 THEN
			_utf8mb4 'Callback Failed'
		WHEN `download_url` IS NOT NULL THEN
			_utf8mb4 'Uploaded'
		ELSE
			_utf8mb4 'Uploading'
		END) STORED NOT NULL,
  --                        ^ All good ✅
	PRIMARY KEY (`id`)) ENGINE InnoDB,
CHARSET utf8mb4,
COLLATE utf8mb4_0900_ai_ci;