Provided by: postgresql-client-8.4_8.4.11-1_amd64 bug

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 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)]