Hi Laurenz Albe
Thank you!
>The client libraries for this version are in
>https://download.postgresql.org/pub/repos/yum/14/redhat/rhel-8-x86_64/postgresql14-14.1-1PGDG.rhel8.x86_64.rpm
But My project was specified to use the package libpq5-14.1-42PGDG.rhel8.x86_64.rpm.
There are only later versions of packages in the yum repo like this:
https://download.postgresql.org/pub/repos/yum/common/redhat/rhel-8-x86_64/libpq5-15.1-42PGDG.rhel8.x86_64.rpm
Thanks.