GNU/Linux man pages
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Syntaxe et mise en oeuvre :
GNU/Linux |
Debian 7.3.0(Wheezy) |
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SHOW(7) |
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SHOW − show the value of a run−time parameter
SHOW
name
SHOW ALL
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 Chapter 18, Server Configuration, in the documentation for details.
name
The name of a run−time parameter. Available parameters are documented in Chapter 18, Server Configuration, in the documentation 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.
The function current_setting produces equivalent output; see Section 9.24, “System Administration Functions”, in the documentation. Also, the pg_settings system view produces the same information.
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)
The SHOW command is a PostgreSQL extension.
SET(7), RESET(7)
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SHOW(7) | |