下面的查询结果中有重复项。我的问题是如何在subTaskName不使用的情况下消除重复distinct？
SELECT tasks.priority, (SELECT tasks.name FROM tasks WHERE tasks.taskid ='11377') AS taskName,
tasks.name AS subTaskName,u.name,tasks.deadline,tasks.created,a.duration AS durata,tasks.parentID,tasks.userid ,tasks.finished,
tasks.estimated,tasks.taskid,tasks.section,tasks.tags
FROM tasks
INNER JOIN users u
ON tasks.assignerid = u.userid
INNER JOIN activities a
ON tasks.parentID = a.taskid
WHERE tasks.parentID='11377'
ORDER BY tasks.taskid
DESC
在where子句之后包括：GROUP BY tasks.name
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我来说两句