---SELECT id,hl1,hl2,hl3,rpt,short_hl2,cat_id,parent_cat_id,prefix_keyword,sum,dtl,hl_color,tmp_photo,video_dis,alt_tag,IFNULL(hierarchy, 99) AS hierarchy,entry_time FROM news AS news
LEFT JOIN mn_hierarchy AS mnh ON mnh.news_id = news.id AND mnh.mid = 2
WHERE cat_id LIKE "%#2#%"
AND publish = 1 GROUP BY id
ORDER BY hierarchy ASC, entry_time DESC
LIMIT 3