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SHOW(7)			 PostgreSQL 17.5 Documentation		       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 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.

	   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 9.28.1. 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 ALSO
       SET(7), RESET(7)

PostgreSQL 17.5			     2025			       SHOW(7)

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