Package: postgresql

"postgresql" package binaries on CentOS:

/usr/bin/clusterdb /usr/bin/createdb /usr/bin/createlang /usr/bin/createuser /usr/bin/dropdb /usr/bin/droplang /usr/bin/dropuser /usr/bin/pg_dumpall /usr/bin/pg_dump /usr/bin/pg_restore /usr/bin/psql /usr/bin/reindexdb /usr/bin/vacuumdb

You may install this package on CentOS with yum install postgresql