MySQL Binlog日期解析

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由于业务环境中MySQL 二进制日志复制是基于行的，昨天开发跑过来让查询有没有人对库进行过插入操作
用mysqlbinlog 工具查询出来的日志全是base-64编码的信息。
这是因为从MySQL 5.1开始，binlog支持row-based的格式，默认情况下只能看到一些经过base-64编码的信息

#151224 23:29:48 server id 1 end_log_pos 13376153 CRC32 0x974f9a2e Query thread_id=164727 exec_time=0 error_code=0
SET TIMESTAMP=1450970988/*!*/;
BEGIN
/*!*/;
# at 13376153
#151224 23:29:48 server id 1 end_log_pos 13376236 CRC32 0x08e3e7fe Table_map: `guoqing`.`test` mapped to number 255
# at 13376236
#151224 23:29:48 server id 1 end_log_pos 13376532 CRC32 0xbb7ed638 Update_rows: table id 255 flags: STMT_END_F

BINLOG '
bA98VhMBAAAAUwAAAOwazAAAAP8AAAAAAAEAB25pcnZhbmEACHRlcm1pbmFsAAwIDw8PDwgREREQ
Dw8RwADAAP0C/QIAAAABAJYAlgDcD/7n4wg=
bA98Vh8BAAAAKAEAABQczAAAAP8AAAAAAAEAAgAM/////wDw5RUAAAAAAAAkRDVFRUJCNDYtRDI5
RC00QTVCLTk5QUYtMkEzRTIwRjE0RkU2IDAxMjlhYWUzYzJkYzQyYTBiODlmMTVjMDk2NmY0Mzdl
BwBDQVNISUVSAgBCWOSwAQAAAAAAVnwPKVZv1ydWfA8oAAANQ29mZmVlLzIuMC4xIADw5RUAAAAA
AAAkRDVFRUJCNDYtRDI5RC00QTVCLTk5QUYtMkEzRTIwRjE0RkU2IDAxMjlhYWUzYzJkYzQyYTBi
ODlmMTVjMDk2NmY0MzdlBwBDQVNISUVSAgBCWOSwAQAAAAAAVnwPbVZv1ydWfA9sAAANQ29mZmVl
LzIuMC4xIDjWfrs=
'/*!*/;
# at 13376532
#151224 23:29:48 server id 1 end_log_pos 13376563 CRC32 0xa58e318d Xid = 486691
COMMIT/*!*/;
# at 13376563
#151224 23:30:00 server id 1 end_log_pos 13376647 CRC32 0xd718f5ce Query thread_id=123940 exec_time=0 error_code=0

这里只能看到guoqing.test表做了改动，但具体改了什么，就不知道了，那么怎样才能看到到底改了什么呢？
从MySQL 5.1.28开始，mysqlbinlog多了个参数–verbose(或-v)，将改动生成带注释的语句
如果使用两次这个参数(如-v -v)，会生成字段的类型、长度、是否为null等属性信息。如下：
参数：0112inin0000 -v -v

BINLOG '
bA98VhMBAAAAUwAAAOwazAAAAP8AAAAAAAEAB25pcnZhbmEACHRlcm1pbmFsAAwIDw8PDwgREREQ
Dw8RwADAAP0C/QIAAAABAJYAlgDcD/7n4wg=
bA98Vh8BAAAAKAEAABQczAAAAP8AAAAAAAEAAgAM/////wDw5RUAAAAAAAAkRDVFRUJCNDYtRDI5
RC00QTVCLTk5QUYtMkEzRTIwRjE0RkU2IDAxMjlhYWUzYzJkYzQyYTBiODlmMTVjMDk2NmY0Mzdl
BwBDQVNISUVSAgBCWOSwAQAAAAAAVnwPKVZv1ydWfA8oAAANQ29mZmVlLzIuMC4xIADw5RUAAAAA
AAAkRDVFRUJCNDYtRDI5RC00QTVCLTk5QUYtMkEzRTIwRjE0RkU2IDAxMjlhYWUzYzJkYzQyYTBi
ODlmMTVjMDk2NmY0MzdlBwBDQVNISUVSAgBCWOSwAQAAAAAAVnwPbVZv1ydWfA9sAAANQ29mZmVl
LzIuMC4xIDjWfrs=
'/*!*/;
### UPDATE `guoqing`.`test`
### WHERE
### @1=537 /* LONGINT meta=0 nullable=0 is_null=0 */
### @2=10.00 /* DECIMAL(10,2) meta=2562 nullable=1 is_null=0 */
### @3=1000 /* LONGINT meta=0 nullable=1 is_null=0 */
### @4=0 /* LONGINT meta=0 nullable=1 is_null=0 */
### @5=1000609 /* LONGINT meta=0 nullable=1 is_null=0 */
### @6='SHOP' /* VARSTRING(765) meta=765 nullable=1 is_null=0 */
### @7=1450950696 /* TIMESTAMP(0) meta=0 nullable=0 is_null=0 */
### SET
### @1=537 /* LONGINT meta=0 nullable=0 is_null=0 */
### @2=10.00 /* DECIMAL(10,2) meta=2562 nullable=1 is_null=0 */
### @3=999 /* LONGINT meta=0 nullable=1 is_null=0 */
### @4=0 /* LONGINT meta=0 nullable=1 is_null=0 */
### @5=1000609 /* LONGINT meta=0 nullable=1 is_null=0 */
### @6='SHOP' /* VARSTRING(765) meta=765 nullable=1 is_null=0 */
### @7=1450950696 /* TIMESTAMP(0) meta=0 nullable=0 is_null=0 */

想去掉base64编码，需加参数
–base64-output=DECODE-ROWS

mysqlbinlog -v -v --base64-output=DECODE-ROWS mysql-bin.000002 |grep -B 70 -A 70 'guoqing' > /home/dba/guoqing.log
 ### UPDATE `guoqing`.`test`
### WHERE
### @1=537 /* LONGINT meta=0 nullable=0 is_null=0 */
### @2=10.00 /* DECIMAL(10,2) meta=2562 nullable=1 is_null=0 */
### @3=1000 /* LONGINT meta=0 nullable=1 is_null=0 */
### @4=0 /* LONGINT meta=0 nullable=1 is_null=0 */
### @5=1000609 /* LONGINT meta=0 nullable=1 is_null=0 */
### @6='SHOP' /* VARSTRING(765) meta=765 nullable=1 is_null=0 */
### @7=1450950696 /* TIMESTAMP(0) meta=0 nullable=0 is_null=0 */
### SET
### @1=537 /* LONGINT meta=0 nullable=0 is_null=0 */
### @2=10.00 /* DECIMAL(10,2) meta=2562 nullable=1 is_null=0 */
### @3=999 /* LONGINT meta=0 nullable=1 is_null=0 */
### @4=0 /* LONGINT meta=0 nullable=1 is_null=0 */
### @5=1000609 /* LONGINT meta=0 nullable=1 is_null=0 */
### @6='SHOP' /* VARSTRING(765) meta=765 nullable=1 is_null=0 */
### @7=1450950696 /* TIMESTAMP(0) meta=0 nullable=0 is_null=0 */

一般不需要加两个-v，可读性不强

mysqlbinlog -v --base64-output=DECODE-ROWS mysql-bin.000002 |grep -B 70 -A 70 'guoqing' > /home/dba/guoqing.log
#151224 17:51:43 server id 1 end_log_pos 12053052 CRC32 0x2d03726a     Update_rows: table id 296 flags: STMT_END_F
### UPDATE `guoqing`.`test`
### WHERE
### @1=537
### @2=10.00
### @3=1000
### @4=0
### @5=1000609
### @6='SHOP'
### @7=1450950696
### SET
### @1=537
### @2=10.00
### @3=999
### @4=0
### @5=1000609
### @6='SHOP'
### @7=1450950696