ALTER TABLE wp_posts2 MODIFY post_name VARCHAR(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
ALTER TABLE wp_posts2 MODIFY post_title VARCHAR(255) CHARACTER SET utf8 COLLATE utf8_general_ci;
ALTER TABLE wp_posts2 MODIFY to_ping VARCHAR(255) CHARACTER SET utf8 COLLATE utf8_unicode_ci;