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CREATE
NAME
  CREATE USER - define a new database user account

SYNOPSIS
  CREATE USER name [ [ WITH ] option [ ... ] ]

  where option can be:

	SYSID uid
      | CREATEDB | NOCREATEDB
      | CREATEUSER | NOCREATEUSER
      | IN GROUP groupname [, ...]
      | [ ENCRYPTED | UNENCRYPTED ] PASSWORD 'password'
      | VALID UNTIL 'abstime'

DESCRIPTION
  CREATE USER adds a new user to a PostgreSQL database cluster. Refer to the
  documentation and the documentation for information about managing users
  and authentication. You must be a database superuser to use this command.

PARAMETERS
  name The name of the new user.

  uid  The SYSID clause can be used to choose the PostgreSQL user ID of the
       new user.  This is normally not necessary, but may be useful if you
       need to recreate the owner of an orphaned object.

       If this is not specified, the highest assigned user ID plus one (with
       a minimum of 100) will be used as default.

  CREATEDB

  NOCREATEDB
       These clauses define a user's ability to create databases. If CREATEDB
       is specified, the user being defined will be allowed to create his own
       databases. Using NOCREATEDB will deny a user the ability to create
       databases. If not specified, NOCREATEDB is the default.

  CREATEUSER

  NOCREATEUSER
       These clauses determine whether a user will be permitted to create new
       users himself. CREATEUSER will also make the user a superuser, who can
       override all access restrictions.  If not specified, NOCREATEUSER is
       the default.

  groupname
       A name of an existing group into which to insert the user as a new
       member. Multiple group names may be listed.

  password
       Sets the user's password. If you do not plan to use password
       authentication you can omit this option, but then the user won't be
       able to connect if you decide to switch to password authentication.
       The password can be set or changed later, using ALTER USER
       [alter_user(5)].

  ENCRYPTED

  UNENCRYPTED
       These key words control whether the password is stored encrypted in
       the system catalogs. (If neither is specified, the default behavior is
       determined by the configuration parameter password_encryption.) If the
       presented password string is already in MD5-encrypted format, then it
       is stored encrypted as-is, regardless of whether ENCRYPTED or
       UNENCRYPTED is specified (since the system cannot decrypt the
       specified encrypted password string). This allows reloading of
       encrypted passwords during dump/restore.

       Note that older clients may lack support for the MD5 authentication
       mechanism that is needed to work with passwords that are stored
       encrypted.

  abstime
       The VALID UNTIL clause sets an absolute time after which the user's
       password is no longer valid. If this clause is omitted the password
       will be valid for all time.

NOTES
  Use ALTER USER [alter_user(5)] to change the attributes of a user, and DROP
  USER [drop_user(5)] to remove a user. Use ALTER GROUP [alter_group(l)] to
  add the user to groups or remove the user from groups.

  PostgreSQL includes a program createuser [createuser(1)] that has the same
  functionality as CREATE USER (in fact, it calls this command) but can be
  run from the command shell.

  The VALID UNTIL clause defines an expiration time for a password only, not
  for the user account per se. In particular, the expiration time is not
  enforced when logging in using a non-password-based authentication method.

EXAMPLES
  Create a user with no password:

  CREATE USER jonathan;

  Create a user with a password:

  CREATE USER davide WITH PASSWORD 'jw8s0F4';

  Create a user with a password that is valid until the end of 2004.  After
  one second has ticked in 2005, the password is no longer valid.

  CREATE USER miriam WITH PASSWORD 'jw8s0F4' VALID UNTIL '2005-01-01';

  Create an account where the user can create databases:

  CREATE USER manuel WITH PASSWORD 'jw8s0F4' CREATEDB;

COMPATIBILITY
  The CREATE USER statement is a PostgreSQL extension. The SQL standard
  leaves the definition of users to the implementation.

SEE ALSO
  ALTER USER [alter_user(5)], DROP USER [drop_user(l)], createuser(1)

Index for Section USER

Alphabetical listing for C

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