SELECT th.thread_id,th.last_date FROM thread_tbl AS th,bbs_tbl AS bbs, s_cat_tbl AS scat, m_cat_tbl AS cat WHERE th.thread_id = bbs.thread_id AND th.s_cat_id = scat.s_cat_id AND scat.m_cat_id = cat.m_cat_id AND th.th_show_flag = '1' AND bbs.post_show_flag = '1' AND MATCH(thread_title_senna,name,body) AGAINST(' +¥×¥í¥¢¥¯ 'IN BOOLEAN MODE) GROUP BY th.thread_id ORDER BY last_date DESC

Got error 134 from storage engine