SHOW(7) PostgreSQL 10.1 Documentation SHOW(7)NAMESHOW - show the value of a run-time parameter
SYNOPSISSHOW name
SHOW ALL
DESCRIPTIONSHOW 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 postgres server. See Chapter 19
for details.
PARAMETERS
name
The name of a run-time parameter. Available parameters are
documented in Chapter 19 and on the 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 database creation 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 database creation
time.
IS_SUPERUSER
True if the current role has superuser privileges.
ALL
Show the values of all configuration parameters, with descriptions.
NOTES
The function current_setting produces equivalent output; see
Section 9.26. Also, the pg_settings system view produces the same
information.
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
-------------------------+---------+-------------------------------------------------
allow_system_table_mods | off | Allows modifications of the structure of ...
.
.
.
xmloption | content | Sets whether XML data in implicit parsing ...
zero_damaged_pages | off | Continues processing past damaged page headers.
(196 rows)
COMPATIBILITY
The SHOW command is a PostgreSQL extension.
SEE ALSOSET(7), RESET(7)PostgreSQL 10.1 2017 SHOW(7)
