$ sudo yum install mysql-bench

...

Transaction Test Succeeded

Running Transaction

  Updating   : mysql-libs-5.1.73-5.el6_7.1.i686                                                                                  1/4 

  Installing : mysql-5.1.73-5.el6_7.1.i686                                                                                       2/4 

  Installing : mysql-bench-5.1.73-5.el6_7.1.i686                                                                                 3/4 

  Cleanup    : mysql-libs-5.1.61-1.el6_2.1.i686                                                                                  4/4 

Installed:

  mysql-bench.i686 0:5.1.73-5.el6_7.1                                                                                                

Dependency Installed:

  mysql.i686 0:5.1.73-5.el6_7.1                                                                                                      

Dependency Updated:

  mysql-libs.i686 0:5.1.73-5.el6_7.1                                                                                                 

Complete!

$ sudo yum install rpms/MariaDB-10.1.13-centos6-i686-client.rpm 

Loaded plugins: fastestmirror

Loading mirror speeds from cached hostfile

 * base: ftp.funet.fi

 * epel: mirror.nsc.liu.se

 * extras: ftp.funet.fi

 * updates: ftp.funet.fi

Setting up Install Process

Examining rpms/MariaDB-10.1.13-centos6-i686-client.rpm: MariaDB-client-10.1.13-1.el6.i686

Marking rpms/MariaDB-10.1.13-centos6-i686-client.rpm to be installed

Resolving Dependencies

--> Running transaction check

---> Package MariaDB-client.i686 0:10.1.13-1.el6 will be obsoleting

--> Processing Dependency: MariaDB-common for package: MariaDB-client-10.1.13-1.el6.i686

---> Package mysql.i686 0:5.1.73-5.el6_7.1 will be obsoleted

--> Processing Dependency: mysql = 5.1.73-5.el6_7.1 for package: mysql-bench-5.1.73-5.el6_7.1.i686

--> Finished Dependency Resolution

Error: Package: MariaDB-client-10.1.13-1.el6.i686 (/MariaDB-10.1.13-centos6-i686-client)

           Requires: MariaDB-common

Error: Package: mysql-bench-5.1.73-5.el6_7.1.i686 (@updates)

           Requires: mysql = 5.1.73-5.el6_7.1

           Removing: mysql-5.1.73-5.el6_7.1.i686 (@updates)

               mysql = 5.1.73-5.el6_7.1

           Obsoleted By: MariaDB-client-10.1.13-1.el6.i686 (/MariaDB-10.1.13-centos6-i686-client)

               mysql = 10.1.13-1.el6

           Available: mysql-5.1.73-5.el6_6.i686 (base)

               mysql = 5.1.73-5.el6_6

 You could try using --skip-broken to work around the problem

 You could try running: rpm -Va --nofiles --nodigest