ALTER TABLE rekognition_atmosphere_images
  ADD COLUMN thumbnail_s3_key VARCHAR(1024) NULL AFTER s3_key,
  ADD COLUMN thumbnail_status ENUM('pending', 'ready', 'failed') NOT NULL DEFAULT 'pending' AFTER thumbnail_s3_key,
  ADD COLUMN thumbnail_error TEXT NULL AFTER thumbnail_status,
  ADD KEY idx_atmosphere_images_thumbnail_status (thumbnail_status);
