在GROUP BY或其附近的ElephantSQL中的语法错误

Question

任何人都可以帮助我用elephantsql解决这个问题吗？

SELECT people.name 
FROM people
INNER JOIN partof ON partof.person_id = people.person_id
INNER JOIN teams ON teams.team_id = partof.team_id
INNER JOIN winners ON winners.team_id = teams.team_id
HAVING COUNT (winners.team_id) >= 1
GROUP BY people.name;

为什么会出现语法错误？

ERROR:  syntax error at or near "GROUP"
LINE 7: GROUP BY people.name;

我尝试在HAVING语句后添加一个逗号，但没有运气。 我对SQL仍然很陌生，希望你们能帮助我:)。