SELECT
cscart_ab__mb_motivation_item_objects.motivation_item_id,
cscart_ab__mb_motivation_item_objects.object_type,
GROUP_CONCAT(
cscart_ab__mb_motivation_item_objects.object_id
) as object_ids
FROM
cscart_ab__mb_motivation_item_objects
WHERE
1
AND cscart_ab__mb_motivation_item_objects.motivation_item_id IN (13, 14, 15)
AND cscart_ab__mb_motivation_item_objects.object_type IN ('C', 'D', 'P')
GROUP BY
cscart_ab__mb_motivation_item_objects.motivation_item_id,
cscart_ab__mb_motivation_item_objects.object_type