brew install libpq

brew install libpq
.../...
libpq is keg-only, which means it was not symlinked into /opt/homebrew,
because conflicts with postgres formula.

Related

• psql
• brew install postgresql

See also

• libpq, brew install libpq
• PostgreSQL: psql, .psqlrc, .pgpass, $HOME/.pg service.conf, -U, -W, -d, meta-commands: \du, \dg, \ddp, \dp, \list, \dn, \dt, \c, \l, \di, \q, show users, show, su - postgres, psql -c, \?, \connect, \conninfo, --version, --help, PL/pgSQL
• brew install postgresql, PostgreSQL versions, psql, brew install libpq, Database operations