mysqldump: Couldn't execute 'SET OPTION SQL_QUOTE_SHOW_CREATE=1'

源码安装的mysql数据库，在执行mysqldump的时候报错：

# mysqldump -u root -p --all-databases > dbdump.db
Enter password:
mysqldump: Couldn't execute 'SET OPTION SQL_QUOTE_SHOW_CREATE=1': You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'OPTION SQL_QUOTE_SHOW_CREATE=1' at line 1 (1064)

查看mysqldump命令，发现路径与源码安装配置的路径不一致：

# which mysqldump
/usr/bin/mysqldump

原来系统还有其他版本的mysql：

# rpm -qa | grep -i mysql
mysql-5.1.66-2.el6_3.x86_64
mysql-libs-5.1.66-2.el6_3.x86_64

卸载老的rpm包即可：

# rpm -e mysql-5.1.66-2.el6_3.x86_64