CREATE TABLE IF NOT EXISTS website_article_drafts (
 user_id BIGINT UNSIGNED NOT NULL,
 article_key VARCHAR(32) NOT NULL,
 version INT UNSIGNED NOT NULL,
 payload LONGTEXT NOT NULL,
 updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
 PRIMARY KEY (user_id, article_key)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
CREATE TABLE IF NOT EXISTS website_article_revisions (
 id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
 article_id BIGINT UNSIGNED NOT NULL,
 user_id BIGINT UNSIGNED NOT NULL,
 payload LONGTEXT NOT NULL,
 created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
 INDEX article_history (article_id, id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;