suse man page for reset

RESET(7)							   SQL Commands 							  RESET(7)

NAME
       RESET - restore the value of a run-time parameter to the default value

SYNOPSIS
       RESET configuration_parameter
       RESET ALL

DESCRIPTION
       RESET restores run-time parameters to their default values. RESET is an alternative spelling for

       SET configuration_parameter TO DEFAULT

       Refer to SET [set(7)] for details.

       The  default value is defined as the value that the parameter would have had, if no SET had ever been issued for it in the current session.
       The actual source of this value might be a compiled-in default, the configuration file, command-line options, or per-database  or  per-user
       default	settings. This is subtly different from defining it as ``the value that the parameter had at session start'', because if the value
       came from the configuration file, it will be reset to whatever is specified by the configuration file now.  See in  the	documentation  for
       details.

       The transactional behavior of RESET is the same as SET: its effects will be undone by transaction rollback.

PARAMETERS
       configuration_parameter
	      Name of a settable run-time parameter. Available parameters are documented in in the documentation and on the SET [set(7)] reference
	      page.

       ALL    Resets all settable run-time parameters to default values.

EXAMPLES
       Set the timezone configuration variable to its default value:

       RESET timezone;

COMPATIBILITY
       RESET is a PostgreSQL extension.

SEE ALSO
       SET [set(7)], SHOW [show(7)]

SQL - Language Statements					    2010-05-14								  RESET(7)