sudo yum localinstall postgresql16-16.2-1PGDG.el7.x86_64.rpm postgresql16-libs-16.2-1PGDG.el7.x86_64.rpm postgresql16-server-16.2-1PGDG.el7.x86_64.rpm
Don't forget /usr/pgsql-16/bin/postgresql-16-setup initdb run before first start systemctl start postgresql-16.service
for postgresql16-llvmjit need
wget http://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
sudo yum localinstall epel-release-latest-7.noarch.rpm
sudo yum install llvm5.0