Support for freeradius on RHEL 6

I am currently running a freeradius server on my Fedora 14 system and I would like to migrate it to RHEL6.  When looking at the packages I noticed that on my Fedora 14 system I have the following list of packages for freeradius:

freeradius-mysql-2.1.12-1.fc14.i686
freeradius-postgresql-2.1.12-1.fc14.i686
freeradius-utils-2.1.12-1.fc14.i686
freeradius-ldap-2.1.12-1.fc14.i686
freeradius-perl-2.1.12-1.fc14.i686
freeradius-krb5-2.1.12-1.fc14.i686
freeradius-unixODBC-2.1.12-1.fc14.i686
freeradius-2.1.12-1.fc14.i686
freeradius-python-2.1.12-1.fc14.i686

On RHEL6 I have the following packages:

freeradius-2.1.12-3.el6.x86_64

None of the database related packages exist.  I did some additional investigation and discovered that these packages used to exist on RHEL5.   Why are they no longer present on RHEL6?  Since my radius configuration uses MySQL on Fedora 14 how do I go about migrating to RHEL6 if I can't use MySQL?

Any assistance is appreciated.

Thank you,

Paolo