I can only find debuginfo for rhel-7 on https://download.postgresql.org/pub/repos/yum/debug/12/redhat/, but not for https://download.postgresql.org/pub/repos/yum/12/redhat/rhel-8-x86_64/postgresql12-server-12.10-1PGDG.rhel8.x86_64.rpm. I tried to use the symbol table in the debuginfo for rhel-7, but found that the two did not match. Hope to get help in finding debuginfo for rhel-8.