PostgreSQL
Name
- postgresql / PostgreSQL - postgresql.org
- pgsql - PL/pgSQL
- postgres - https://wiki.postgresql.org/wiki/Postgres
- psql - https://www.postgresql.org/docs/10/static/app-psql.html
Creating cluster
https://www.postgresql.org/docs/10/static/creating-cluster.html
"/usr/local/pgsql/data or /var/lib/pgsql/data are popular"
- in Ubuntu 'apt-get install postgresql' creates /var/lib/postgresql/
initdb not found