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Where is PostgreSQL on Ubuntu?
PostgreSQL configuration files are stored in the /etc/postgresql/<version>/main directory. For example, if you install PostgreSQL 12, the configuration files are stored in the /etc/postgresql/12/main directory.
Where is PostgreSQL installed?
All files will be installed under /usr/local/pgsql by default. Install all files under the directory PREFIX instead of /usr/local/pgsql.
