ALTER TABLE tb_iot_card_import_task
    ADD COLUMN IF NOT EXISTS storage_bucket VARCHAR(100),
    ADD COLUMN IF NOT EXISTS storage_key VARCHAR(500);

COMMENT ON COLUMN tb_iot_card_import_task.storage_bucket IS '对象存储桶名';
COMMENT ON COLUMN tb_iot_card_import_task.storage_key IS '对象存储文件路径';
