MySQL Query Error, sql: (SELECT sell_id,price,unit,property_sys_select,property_sys_input,img_path,imp_status,update_date FROM web_sell_8 WHERE sell_id IN(38356942,38356800,38357104,38357247,38357315,38357473,40655035,12233357)) UNION (SELECT sell_id,price,unit,property_sys_select,property_sys_input,img_path,imp_status,update_date FROM web_sell_a WHERE sell_id IN(46001802,33653520)) UNION (SELECT sell_id,price,unit,property_sys_select,property_sys_input,img_path,imp_status,update_date FROM web_sell_2 WHERE sell_id = 61720277 ) UNION (SELECT sell_id,price,unit,property_sys_select,property_sys_input,img_path,imp_status,update_date FROM web_sell_0 WHERE sell_id IN(46012451,46191735)) UNION (SELECT sell_id,price,unit,property_sys_select,property_sys_input,img_path,imp_status,update_date FROM web_sell_e WHERE sell_id IN(48725831,48725949,12056258,12083933,12084969)) UNION (SELECT sell_id,price,unit,property_sys_select,property_sys_input,img_path,imp_status,update_date FROM web_sell_9 WHERE sell_id IN(21461945,22613835)), ErrMsg: MySQL server has gone away {ganrao}