mysql 排序

SELECT ai.`code`, c.mobilePhone
			,co.`name`,cc.createdTime
FROM
ClientCoupon AS cc
INNER JOIN ActivityInfo AS ai ON ai.sn = cc.activitySn
INNER JOIN Client AS c ON cc.clientSn = c.sn
INNER JOIN Coupon AS co ON co.sn = cc.couponSn ,
ClientCoupon
WHERE 1 = 1
			AND  co.sn not in (3, 5, 6)
			AND  ai.code in ('10000006', '10000007', '10000008', '10000001', '10000002')
		AND ai.partStartTime <= '2015-12-18 16:42:00'
		AND ai.partEndTime >=  '2015-12-18 16:42:00'
ORDER BY co.amount DESC, cc.createdTime DESC
 limit 0, 10000;

Vsftp:/tmp# ls -ltrh
total 409M
drwx------. 2 root   root   4.0K Mar  8  2016 keyring-NKnAWe
lrwxrwxrwx  1 root   root     24 Oct 28 09:43 mysql.sock -> /data01/mysql/mysql.sock
drwx------  2 tomcat tomcat 4.0K Nov  8 10:09 pulse-n4FjBj0h36vp
drwx------  2 gdm    gdm    4.0K Nov 29 13:43 orbit-gdm
drwx------  2 root   root   4.0K Nov 29 13:43 keyring-0Z0NaP
drwx------. 2 root   root   4.0K Nov 29 13:43 pulse-bwFjVHZn5SDK
drwx------  2 root   root   4.0K Nov 29 13:43 virtual-root.H3BWKr
drwx------  2 gdm    gdm    4.0K Nov 29 13:43 pulse-CM0yro2khZRx
drwx------  2 root   root   4.0K Nov 29 13:43 orbit-root
drwxr-xr-x  2 elk    elk    4.0K Dec  9 10:01 hsperfdata_elk
drwxr-xr-x  2 root   root   4.0K Dec 15 17:36 hsperfdata_root
-rw-rw-r--  1 zabbix zabbix 1.1M Dec 16 23:59 zabbix_agentd.log.old
-rw-rw-r--  1 zabbix zabbix 566K Dec 22 10:45 zabbix_agentd.log
-rw-rw----  1 mysql  mysql  1.0K Dec 22 10:51 #sql_6e7f_0.MYI
-rw-rw----  1 mysql  mysql  407M Dec 22 10:51 #sql_6e7f_0.MYD

mysql> explain SELECT ai.`code`, c.mobilePhone ,co.`name`,cc.createdTime FROM ClientCoupon AS cc INNER JOIN ActivityInfo AS ai ON ai.sn = cc.activitySn INNER JOIN Client AS c ON cc.clientSn = c.sn INNER JOIN Coupon AS co ON co.sn = cc.couponSn , ClientCoupon WHERE 1 = 1 AND  co.sn not in (3, 5, 6) AND  ai.code in ('10000006', '10000007', '10000008', '10000001', '10000002') AND ai.partStartTime <= '2015-12-18 16:42:00' AND ai.partEndTime >=  '2015-12-18 16:42:00' ORDER BY co.amount DESC, cc.createdTime DESC  limit 0, 10000;
+----+-------------+--------------+--------+-------------------+---------+---------+--------------------+------+----------------------------------------------------+
| id | select_type | table        | type   | possible_keys     | key     | key_len | ref                | rows | Extra                                              |
+----+-------------+--------------+--------+-------------------+---------+---------+--------------------+------+----------------------------------------------------+
|  1 | SIMPLE      | cc           | ALL    | ClientCoupon_idx1 | NULL    | NULL    | NULL               | 8316 | Using where; Using temporary; Using filesort       |
|  1 | SIMPLE      | ai           | eq_ref | PRIMARY           | PRIMARY | 4       | zjzc.cc.activitySn |    1 | Using where                                        |
|  1 | SIMPLE      | co           | eq_ref | PRIMARY           | PRIMARY | 4       | zjzc.cc.couponSn   |    1 | NULL                                               |
|  1 | SIMPLE      | c            | eq_ref | PRIMARY           | PRIMARY | 4       | zjzc.cc.clientSn   |    1 | NULL                                               |
|  1 | SIMPLE      | ClientCoupon | index  | NULL              | sn      | 4       | NULL               | 8316 | Using index; Using join buffer (Block Nested Loop) |
+----+-------------+--------------+--------+-------------------+---------+---------+--------------------+------+----------------------------------------------------+
5 rows in set (0.00 sec)