Client built with 'gcc -m32 -lodbc' is able to connect to PostgreSQL
server with default unixODBC.i686 when the postgresql-odbc.i686 package is
manually installed e.g. from koji build [1].
So the resolution of this bug is to make sure that the
postgresql-odbc is categorized as multilib.
[1] https://koji.fedoraproject.org/koji/buildinfo?buildID=811374