4 SHOW — show the value of a run-time parameter
13 SHOW will display the current setting of run-time parameters. These
14 variables can be set using the SET statement, by editing the
15 postgresql.conf configuration file, through the PGOPTIONS environmental
16 variable (when using libpq or a libpq-based application), or through
17 command-line flags when starting the postgres server. See Chapter 19
23 The name of a run-time parameter. Available parameters are
24 documented in Chapter 19 and on the SET reference page. In
25 addition, there are a few parameters that can be shown but not
29 Shows the server's version number.
32 Shows the server-side character set encoding. At present,
33 this parameter can be shown but not set, because the
34 encoding is determined at database creation time.
37 True if the current role has superuser privileges.
40 Show the values of all configuration parameters, with
45 The function current_setting produces equivalent output; see
46 Section 9.28.1. Also, the pg_settings system view produces the same
51 Show the current setting of the parameter DateStyle:
58 Show the current setting of the parameter geqo:
67 name | setting | description
68 -------------------------+---------+--------------------------------------------
70 allow_system_table_mods | off | Allows modifications of the structure of ..
75 xmloption | content | Sets whether XML data in implicit parsing .
77 zero_damaged_pages | off | Continues processing past damaged page head
83 The SHOW command is a PostgreSQL extension.