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An administrator is generally a person who is in charge of
installing and running the server. A user could be anyone who is
using, or wants to use, any part of the PostgreSQL system.
These terms should not be interpreted too narrowly; this documentation set does not have
fixed presumptions about system administration procedures.
We use /usr/local/pgsql/ as the root directory of the
installation and /usr/local/pgsql/data as the directory with the
database files. These directories may vary on your site, details can be derived in the Administrator's Guide.
In a command synopsis, brackets ([ and ])
indicate an optional phrase or keyword. Anything in braces ({ and }) and containing vertical bars (|) indicates
that you must choose one alternative.
Examples will show commands executed from various accounts and programs. Commands
executed from a Unix shell may be preceded with a dollar sign ("$"). Commands executed from particular user accounts such
as root or postgres are
specially flagged and explained. SQL commands may be preceded
with "=>" or will have no
leading prompt, depending on the context.
Note: The notation for flagging commands is not universally consistent
throughout the documentation set. Please report problems to the documentation mailing
list <pgsql-docs@postgresql.org>.
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