mysql用主键查询出两条相同的记录

Question

SELECT a.id, 
    a.user_id AS userId,
    a.content, a.status, 
    a.create_time AS createTime, 
    a.address, 
    a.type,
    a.people_count AS peopleCount, 
    a.fee_content AS feeContent, 
    a.active_time AS activeTime, 
    a.condition, a.pic, 
    a.join_count,
    c.avatars AS initiatorAvatars, 
    c.phone AS initiatorPhone, 
    c.name As initiatorName 
    FROM t_active a 
        LEFT JOIN t_join_active b ON a.id = b.active_id 
        LEFT JOIN t_user c ON a.user_id=c.id 
        WHERE a.id=?

id是主键查询出两条相同的记录。
org.apache.ibatis.exceptions.TooManyResultsException: Expected one result (or null) to be returned by selectOne(), but found: 2
报了这个错。
sql复制到数据库中查询，只有一条。请教是什么问题

Answer 1

重启idea，rebuild之后解决了