Seems there are three GUC variables that are defined as "Shows ..."

while you can actually set them with SET.

This applied patch changes the wording from "Show" to "Set".

diff --git a/src/backend/utils/misc/guc.c b/src/backend/utils/misc/guc.c
index 1f88c74ccfad6f54cbc76a6641a244873a3c9e75..030dd9033c8d7c064c65c482cdfdca3308ca3a12 100644 (file)
--- a/src/backend/utils/misc/guc.c
+++ b/src/backend/utils/misc/guc.c
@@ -10,7 +10,7 @@
  * Written by Peter Eisentraut .
  *
  * IDENTIFICATION
- *   $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.172 2003/11/29 19:52:03 pgsql Exp $
+ *   $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.173 2003/12/01 03:55:21 momjian Exp $
  *
  *--------------------------------------------------------------------
  */
@@ -808,7 +808,7 @@ static struct config_bool ConfigureNamesBool[] =
    },
    {
        {"transaction_read_only", PGC_USERSET, CLIENT_CONN_STATEMENT,
-           gettext_noop("Shows the current transaction's read-only status."),
+           gettext_noop("Sets the current transaction's read-only status."),
            NULL,
            GUC_NO_RESET_ALL | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE
        },
@@ -1532,7 +1532,7 @@ static struct config_string ConfigureNamesString[] =
    {
        /* Not for general use --- used by SET SESSION AUTHORIZATION */
        {"session_authorization", PGC_USERSET, UNGROUPED,
-           gettext_noop("Shows the session user name."),
+           gettext_noop("Sets the session user name."),
            NULL,
            GUC_REPORT | GUC_NO_SHOW_ALL | GUC_NO_RESET_ALL | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE
        },
@@ -1572,7 +1572,7 @@ static struct config_string ConfigureNamesString[] =
 
    {
        {"transaction_isolation", PGC_USERSET, CLIENT_CONN_STATEMENT,
-           gettext_noop("Shows the current transaction's isolation level."),
+           gettext_noop("Sets the current transaction's isolation level."),
            NULL,
            GUC_NO_RESET_ALL | GUC_NOT_IN_SAMPLE | GUC_DISALLOW_IN_FILE
        },