I have successfully launched new AWS RDS PostgreSQL v10 instance and need to install PostgreSQL v10 client on Amazon Linux EC2 instance.
I have tried to install
The following works for psql v11 on Amazon Linux (v1)
wget https://yum.postgresql.org/11/redhat/rhel-6.9-x86_64/postgresql11-libs-11.8-1PGDG.rhel6.x86_64.rpm
wget https://yum.postgresql.org/11/redhat/rhel-6.9-x86_64/postgresql11-11.8-1PGDG.rhel6.x86_64.rpm
sudo yum clean all
sudo rpm -ivh postgresql11-libs-11.8-1PGDG.rhel6.x86_64.rpm
sudo rpm -ivh postgresql11-11.8-1PGDG.rhel6.x86_64.rpm