binlog_format 爲 STATEMENT 的分析

os: centos 7.4.1708
db: mysql 8.0.20

版本

# cat /etc/centos-release
CentOS Linux release 7.4.1708 (Core) 
# 
# 
# yum list installed |grep -i mysql80
mysql-community-client.x86_64              8.0.20-1.el7                @mysql80-community
mysql-community-common.x86_64              8.0.20-1.el7                @mysql80-community
mysql-community-devel.x86_64               8.0.20-1.el7                @mysql80-community
mysql-community-libs.x86_64                8.0.20-1.el7                @mysql80-community
mysql-community-libs-compat.x86_64         8.0.20-1.el7                @mysql80-community
mysql-community-server.x86_64              8.0.20-1.el7                @mysql80-community
mysql-community-test.x86_64                8.0.20-1.el7                @mysql80-community
mysql80-community-release.noarch           el7-3                       installed

# mysql -e "select version();"
+-----------+
| version() |
+-----------+
| 8.0.20    |
+-----------+

binlog_format = STATEMENT

# vi /etc/my.cnf

binlog_format = STATEMENT

# systemctl restart mysqld.service
# mysql

mysql> use test;

mysql> show variables like 'log_bin';
+---------------+-------+
| Variable_name | Value |
+---------------+-------+
| log_bin       | ON    |
+---------------+-------+
1 row in set (0.00 sec)

mysql> show variables like 'binlog_format';
+---------------+-----------+
| Variable_name | Value     |
+---------------+-----------+
| binlog_format | STATEMENT |
+---------------+-----------+
1 row in set (0.07 sec)

mysql> show master status;
+---------------+----------+--------------+------------------+-------------------+
| File          | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+---------------+----------+--------------+------------------+-------------------+
| binlog.000025 |      156 |              |                  |                   |
+---------------+----------+--------------+------------------+-------------------+
1 row in set (0.00 sec)

mysql> insert into tmp_t0 values(11,'11','11'),(12,'12','12');
Query OK, 2 rows affected (0.08 sec)
Records: 2  Duplicates: 0  Warnings: 0

mysql> show master status;
+---------------+----------+--------------+------------------+-------------------+
| File          | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+---------------+----------+--------------+------------------+-------------------+
| binlog.000025 |      479 |              |                  |                   |
+---------------+----------+--------------+------------------+-------------------+
1 row in set (0.00 sec)

# /usr/bin/mysqlbinlog --no-defaults --base64-output=decode-rows -v --start-position=156 --stop-position=479  /var/lib/mysql/binlog.000025

/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=1*/;
/*!50003 SET @OLD_COMPLETION_TYPE=@@COMPLETION_TYPE,COMPLETION_TYPE=0*/;
DELIMITER /*!*/;
# at 125
#200629  9:54:58 server id 1  end_log_pos 125 CRC32 0xace723f4 	Start: binlog v 4, server v 8.0.20 created 200629  9:54:58 at startup
# Warning: this binlog is either in use or was not closed properly.
ROLLBACK/*!*/;
# at 156
#200629  9:59:13 server id 1  end_log_pos 235 CRC32 0x4ea57fcc 	Anonymous_GTID	last_committed=0	sequence_number=1	rbr_only=no	original_committed_timestamp=1593395953428846	immediate_commit_timestamp=1593395953428846	transaction_length=323
# original_commit_timestamp=1593395953428846 (2020-06-29 09:59:13.428846 CST)
# immediate_commit_timestamp=1593395953428846 (2020-06-29 09:59:13.428846 CST)
/*!80001 SET @@session.original_commit_timestamp=1593395953428846*//*!*/;
/*!80014 SET @@session.original_server_version=80020*//*!*/;
/*!80014 SET @@session.immediate_server_version=80020*//*!*/;
SET @@SESSION.GTID_NEXT= 'ANONYMOUS'/*!*/;
# at 235
#200629  9:59:13 server id 1  end_log_pos 317 CRC32 0x50b4bcbf 	Query	thread_id=8	exec_time=0	error_code=0
SET TIMESTAMP=1593395953/*!*/;
SET @@session.pseudo_thread_id=8/*!*/;
SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=0, @@session.unique_checks=1, @@session.autocommit=1/*!*/;
SET @@session.sql_mode=1168113696/*!*/;
SET @@session.auto_increment_increment=1, @@session.auto_increment_offset=1/*!*/;
/*!\C utf8mb4 *//*!*/;
SET @@session.character_set_client=255,@@session.collation_connection=255,@@session.collation_server=255/*!*/;
SET @@session.lc_time_names=0/*!*/;
SET @@session.collation_database=DEFAULT/*!*/;
/*!80011 SET @@session.default_collation_for_utf8mb4=255*//*!*/;
BEGIN
/*!*/;
# at 317
#200629  9:59:13 server id 1  end_log_pos 448 CRC32 0x07290dd7 	Query	thread_id=8	exec_time=0	error_code=0
use `test`/*!*/;
SET TIMESTAMP=1593395953/*!*/;
insert into tmp_t0 values(11,'11','11'),(12,'12','12')
/*!*/;
# at 448
#200629  9:59:13 server id 1  end_log_pos 479 CRC32 0x339307e1 	Xid = 17
COMMIT/*!*/;
SET @@SESSION.GTID_NEXT= 'AUTOMATIC' /* added by mysqlbinlog */ /*!*/;
DELIMITER ;
# End of log file
/*!50003 SET COMPLETION_TYPE=@OLD_COMPLETION_TYPE*/;
/*!50530 SET @@SESSION.PSEUDO_SLAVE_MODE=0*/;

參考:
https://dev.mysql.com/doc/refman/8.0/en/binary-log-setting.html