Woocommerce product variation length not populating

select * from vOrderItemMetaDataV3 where order_id = 7509;

insert into wp1_woocommerce_order_itemmeta (order_item_id, meta_key, meta_value)
values (29897, ‘length’, ‘1000’)
;

select * from wp1_woocommerce_order_itemmeta where order_item_id = 29897;