Pozitsiyalarni bitta guruhga birlashtirish va narx qiymatlarini vergüllar bilan ajratilgan satrda chiqarish mumkinmi, o'rtacha hisoblash o'rniga?

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SELECT
    order_id,
    STRING_AGG(CAST(price AS VARCHAR), ', ') AS prices_list
FROM
    order_items
GROUP BY
    order_id;