mysql查找值不匹配的匹配键

我正在处理一个有一些重复数据的数据库，并试图编写一个查询来提取问题数据。该表如下所示：

lpID, pID, pName, etc...

其中，lpID是该表的唯一id，pID是整个数据库的共享id。我用它来提取匹配的pID值（16k）：

这是可行的，但现在我正在尝试扩展它，以便它只提取pName值不匹配的938。我尝试的东西似乎都不管用。我怎样才能做到这一点？你试过了吗

SELECT lp.pID, group_concat(lp.lpID) as lpIDs, group_concat(lp.pName) as names
FROM lp
INNER JOIN (
  SELECT pID, COUNT(distinct pName) AS Names
  FROM lp
  GROUP BY pID
  HAVING count(pID) > 1 AND Names > 1
) dup ON lp.pID = dup.pID
group by lp.pID

SELECT lp.pID, group_concat(lp.lpID) as lpIDs, group_concat(lp.pName) as names
FROM lp
INNER JOIN (
  SELECT pID, COUNT(distinct pName) AS Names
  FROM lp
  GROUP BY pID
  HAVING count(pID) > 1 AND Names > 1
) dup ON lp.pID = dup.pID
group by lp.pID