Выборка пользователей по реакции

SELECT SQL_CALC_FOUND_ROWS COUNT(*) as 'Полезность', m.name as 'Имя',
concat('https://www.amk-team.ru/forum/profile/',`member_received`,'-',`members_seo_name`) as 'Ссылка на профиль'
FROM ipb_core_reputation_index ri
JOIN ipb_core_members m on (ri.member_received = m.member_id)
WHERE `reaction` = '10' AND `rep_date` > '1546290000'
GROUP BY `member_received`
ORDER BY `Полезность` DESC
LIMIT 20