Installing PostgreSQL client utility

PostgreSQL client utility recommended version is 15.3.

Download locations	RHEL 7	https://download.postgresql.org/pub/repos/yum/15/redhat/rhel-7-x86_64/
	RHEL 8	https://download.postgresql.org/pub/repos/yum/15/redhat/rhel-8-x86_64/
	RHEL 9	https://download.postgresql.org/pub/repos/yum/15/redhat/rhel-9-x86_64/

To install, run the following commands in the terminal:

rpm -ivh postgresql15-libs-15.3-1PGDG.rhel7.x86_64.rpm
rpm -ivh postgresql15-15.3-1PGDG.rhel7.x86_64.rpm
Note:
lz4 compression package and libicu are required by postgresql15-15.3-1PGDG.rhel8.x86_64.rpm on RHEL 8 and 9.