How to remove MariaDB and install MySQL for Postfix?

Question

I have removed MariaDB completely and installed MySQL V.8 but now when I want to install postfix with yum install postfix . Its dependencies are MariaDB-common and MariaDB-compat so it needs them however I have uninstalled it. At last in returns a Transaction check error with this message that

file /etc/my.cnf from install of MariaDB-common-10.2.23-1.el7.centos.x86_64 conflicts with file from package mysql-community-server-8.0.15-1.el7.x86_64

How can I fix it?

UPDATE

In this website I got that it needs a file named libmysqlclient.so.18 which must be in /usr/lib64/ directory but it is missed. How can I get this file without running command yum install MariaDB* ?

Answer 1

I had the similar issue file /etc/my.cnf from install of mysql-community-server-8.0.16-2.el7.x86_64 conflicts with file from package MariaDB-common-10.3.3-1.el7.centos.x86_64 issued by removing mariadb packages.

yum remove MariaDB-common*

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