show(7)
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 docu
- mented 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 role has superuser privileges.
- ALL Show the values of all configuration parameters, with descrip
- tions.
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 | description
- --------------------------------+--------------------------------+---------------------------------------------------------------------------------------------
- add_missing_from | off | Automatically adds missing table references to FROM clauses.
archive_command | unset | WAL archiving command.
australian_timezones | off | Interprets ACST, CST, EST, and SAT as Australian time zones.
.
.
. - work_mem | 1024 | Sets the maximum memory to be used for query workspaces. zero_damaged_pages | off | Continues processing past damaged page headers.
- (146 rows)
COMPATIBILITY
The SHOW command is a PostgreSQL extension.
SEE ALSO
- SET [set(7)], RESET [reset(l)]