不支持引用'seg_type'（对组函数的引用）

Question

我写了一个sql，它告诉我这个例外，我怎么能解决这个问题

SELECT 
b.project_id,
GROUP_CONCAT(b.segment_type ORDER BY b.segment_type SEPARATOR ',' )  AS seg_type
FROM t_project_bid_announce_draft b  
LEFT JOIN t_project_segment t ON t.project_id = b.project_id
WHERE (b.review_status = 2 OR  b.review_status = 3)
AND b.deleted = 0
AND seg_type != t.segment_type
GROUP BY b.project_id

请帮助我，非常感谢。

更新

我使用不带

的sql

AND seg_type != t.segment_type

像

SELECT b.project_id,GROUP_CONCAT(b.segment_type ORDER BY b.segment_type SEPARATOR ',' )  
AS seg_type,t.segment_type 
FROM t_project_bid_announce_draft b  
LEFT JOIN t_project_segment t ON t.project_id = b.project_id
WHERE (b.review_status = 2 OR  b.review_status = 3)
AND b.deleted = 0
GROUP BY b.project_id

而且我得到了这个RESULT

我想比较

seg_type

和

t.segment_type