SELECT
f.feature_id,
f.purpose,
p.product_id,
p.parent_product_id,
g.id,
g.code
FROM
cscart_product_variation_group_features AS f
INNER JOIN cscart_product_variation_groups AS g ON f.group_id = g.id
INNER JOIN cscart_product_variation_group_products AS p ON f.group_id = p.group_id
WHERE
p.product_id IN (276685)