c3_id,mcu_udid,c3_name, c3_mac,status_bit,device_temperature, pole_devices_code,update_time select * from c3m_charging where c3_mac = #{c3Mac} SELECT t1.*, t3.pole_code, t3.pole_name FROM c3m_charging t1 LEFT JOIN pole_binding t2 ON t1.mcu_udid = t2.device_code AND t2.device_type = 8 LEFT JOIN pole t3 ON t3.id = t2.pole_id AND (t1.c3_name LIKE CONCAT(CONCAT('%', #{keyword}), '%') OR (t3.pole_name LIKE CONCAT(CONCAT('%', #{keyword}), '%')))