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show
Langue: en
Version: 2010-07-20 (ubuntu - 25/10/10)
Section: 7 (Divers)
NAME
SHOW - show the value of a run-time parameterSYNOPSIS
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 postgres server. See in the documentation for details.
PARAMETERS
- name
- The name of a run-time parameter. Available parameters are documented in 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 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 in the documentation. 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 --------------------------------+--------------------------------+---------------------------------------------------------------------------------------------- add_missing_from | off | Automatically adds missing table references to FROM clauses. allow_system_table_mods | off | Allows modifications of the structure of system tables. . . . 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(7)]Contenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre