Unable to install pgsql under RHEL8

Hi,

I am not able to install postgresql11 under a fresh RHEL8.

The repos have been installed using
https://download.postgresql.org/pub/repos/yum/reporpms/EL-8-x86_64/pgdg-redhat-repo-latest.noarch.rpm

They are enabled:

# yum --quiet repolist pgdg1*
repo id repo name status
pgdg10 PostgreSQL 10 8 - x86_64 239
pgdg11 PostgreSQL 11 8 - x86_64 104

Packages are known by the repository:

# yum --quiet repoquery --repo pgdg11 postgresql11-server*
postgresql11-server-0:11.2-2PGDG.rhel8.x86_64
postgresql11-server-0:11.3-1PGDG.rhel8.x86_64

But they are unknown from local cache:

# yum search postgresql11-server
Updating Subscription Management repositories.
Last metadata expiration check: 0:23:08 ago on Fri May 17 00:23:20 2019.
No matches found.

If I try to groupinstall:

# yum groupinstall postgresqldbserver11
Updating Subscription Management repositories.
Last metadata expiration check: 0:24:27 ago on Fri May 17 00:23:20 2019.
No match for group package "postgresql11"
No match for group package "postgresql11-contrib"
No match for group package "postgresql11-server"
Dependencies resolved.
=========================================================================
Package Arch Version Repository Size
=========================================================================
Installing group/module packages:
postgresql11-libs x86_64 11.3-1PGDG.rhel8 pgdg11 385 k
[...]

If I yum install using direct URL, it obviously works and pull
postgresql11-libs as dependency:

# yum install $PGDG_URL/postgresql11-11.3-1PGDG.rhel8.x86_64.rpm
$PGDG_URL/postgresql11-server-11.3-1PGDG.rhel8.x86_64.rpm

Any clue? Some issue with the provided package list?

Thanks,