SHOW()

NAME
SHOW - show the value of a run-time parameter

SYNOPSIS

SHOW name
SHOW ALL

DESCRIPTION

SHOW will display the current setting of run-time parameters. These variables can be set using the SET statement, by editing the postgresql.conf configuration file, through the PGOPTIONS environmental variable (when using libpq or a libpq-based application), or through command-line flags when starting the postmaster. See the documentation for details.

PARAMETERS

name
    The name of a run-time parameter. Available parameters are documented in the documentation and on the SET [set(7)] reference page. In addition, there are a few parameters that can be shown but not set:

    SERVER_VERSION
        Shows the server's version number.

    SERVER_ENCODING
        Shows the server-side character set encoding. At present, this parameter can be shown but not set, because the encoding is determined at database creation time.

    LC_COLLATE
        Shows the database's locale setting for collation (text ordering). At present, this parameter can be shown but not set, because the setting is determined at initdb time.

    LC_CTYPE
        Shows the database's locale setting for character classification. At present, this parameter can be shown but not set, because the setting is determined at initdb time.

    IS_SUPERUSER
        True if the current session authorization identifier has superuser privileges.

ALL Show the values of all configuration parameters.

NOTES

The function current_setting produces equivalent output. See the documentation.

EXAMPLES

Show the current setting of the parameter DateStyle:

SHOW DateStyle;
 DateStyle
-----------
 ISO, MDY
(1 row)

Show the current setting of the parameter geqo:

SHOW geqo;
 geqo
------
 on
(1 row)

Show all settings:

SHOW ALL;
              name              |                     setting
--------------------------------+----------------------------------------------
 add_missing_from               | on
 archive_command                | unset
 australian_timezones           | off
    .
    .
    .
 work_mem                       | 1024
 zero_damaged_pages             | off
(140 rows)

COMPATIBILITY

The SHOW command is a PostgreSQL extension.

SEE ALSO
SET [set(7)], RESET [reset(l)]