Problema em transformar SQL query complexa para Knex.

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Luca Mendes

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Aug 12, 2020, 2:42:14 PM8/12/20

to Node.js Brasil

Alguém pode me ajudar a passar essa query:

SELECT products.product_id, products.product_description @entries := (IFNULL ((SELECT Sum(purchase_items.purchased_items_quantity) FROM purchase_items WHERE purchase_items.product_id = products.product_id),0)) AS stock_entries, @outs:= (IFNULL ((SELECT Sum(sale_items.sold_items_quantity) FROM sale_items WHERE sale_items.product_id = products.product_id),0)) AS stock_outs, (@entries - @outs) AS final_stock FROM products