Thank you for your help! I have been able to install PostgreSQL 12.1(rpm) on CentOS 8.0(without python2). It has also possible to install on CentOS 7.6(without python3).
On Fri, 2019-09-27 at 09:38 -0400, Tom Lane wrote: > Another idea might be to bundle them into the plpython package > instead of contrib (and similarly for the plperl transforms).
This went into the last week's minor updates.
Regards, -- Devrim Gündüz Open Source Solution Architect, Red Hat Certified Engineer Twitter: @DevrimGunduz , @DevrimGunduzTR