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        (SELECT classid, id, titleurl, title, newstime 
         FROM ***_ecms_news 
         WHERE title LIKE BINARY '%jrstv%'
         ORDER BY newstime DESC
         LIMIT 20)
        UNION ALL
        (SELECT classid, id, titleurl, title, newstime 
         FROM ***_ecms_lx 
         WHERE title LIKE BINARY '%jrstv%'
         ORDER BY newstime DESC
         LIMIT 20)
        UNION ALL
        (SELECT classid, id, titleurl, title, newstime 
         FROM ***_ecms_jj 
         WHERE title LIKE BINARY '%jrstv%'
         ORDER BY newstime DESC
         LIMIT 20)
        ORDER BY newstime DESC
        LIMIT 0, 20