client_message.patch

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
new file mode 100644
index 0cc3296..fa5b942
*** a/doc/src/sgml/config.sgml
--- b/doc/src/sgml/config.sgml
*************** dynamic_library_path = 'C:\tools\postgre
*** 5323,5328 ****
--- 5323,5341 ----
        </listitem>
       </varlistentry>
  
+      <varlistentry id="guc-client-message" xreflabel="client_message">
+       <term><varname>client_message</varname> (<type>string</type>)</term>
+       <indexterm>
+        <primary><varname>client_message</> configuration parameter</primary>
+       </indexterm>
+       <listitem>
+        <para>
+         The <varname>client_message</varname> can be any string that will be 
+         displayed to the user in the banner of psql. 
+        </para>
+       </listitem>
+      </varlistentry>
+ 
       </variablelist>
      </sect2>
     </sect1>
diff --git a/src/backend/utils/misc/guc.c b/src/backend/utils/misc/guc.c
new file mode 100644
index 5c910dd..58b6000
*** a/src/backend/utils/misc/guc.c
--- b/src/backend/utils/misc/guc.c
*************** static char *log_destination_string;
*** 455,460 ****
--- 455,461 ----
  static char *syslog_ident_str;
  static bool phony_autocommit;
  static bool session_auth_is_superuser;
+ static char *client_message_string;
  static double phony_random_seed;
  static char *client_encoding_string;
  static char *datestyle_string;
*************** static struct config_string ConfigureNam
*** 3018,3023 ****
--- 3019,3035 ----
  		check_application_name, assign_application_name, NULL
  	},
  
+         {
+                 {"client_message", PGC_USERSET, CLIENT_CONN_OTHER,
+                         gettext_noop("Sets a message to be displayed to the user when connecting via psql."),
+                         NULL,
+                         GUC_REPORT | GUC_NO_SHOW_ALL
+                 },
+                 &client_message_string,
+                 "",
+                 NULL, NULL, NULL
+         },
+ 
  	/* End-of-list marker */
  	{
  		{NULL, 0, 0, NULL, NULL}, NULL, NULL, NULL, NULL, NULL
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
new file mode 100644
index 315db46..8eb5af5
*** a/src/backend/utils/misc/postgresql.conf.sample
--- b/src/backend/utils/misc/postgresql.conf.sample
***************
*** 515,520 ****
--- 515,521 ----
  
  #dynamic_library_path = '$libdir'
  #local_preload_libraries = ''
+ #client_message = ''
  
  
  #------------------------------------------------------------------------------
diff --git a/src/bin/psql/command.c b/src/bin/psql/command.c
new file mode 100644
index 69fac83..44bf114
*** a/src/bin/psql/command.c
--- b/src/bin/psql/command.c
*************** static bool get_create_function_cmd(PGco
*** 65,70 ****
--- 65,71 ----
  static int	strip_lineno_from_funcdesc(char *func);
  static void minimal_error_message(PGresult *res);
  
+ static void printClientMessage(void);
  static void printSSLInfo(void);
  
  #ifdef WIN32
*************** connection_warnings(bool in_startup)
*** 1699,1709 ****
--- 1700,1729 ----
  		checkWin32Codepage();
  #endif
  		printSSLInfo();
+ 
+ 		printClientMessage();
  	}
  }
  
  
  /*
+  * printClientMessage
+  *
+  * Prints any message stored in the client_message GUC
+  */
+ static void
+ printClientMessage(void)
+ {
+ 	const char *message;
+ 
+ 	message = PQparameterStatus(pset.db, "client_message");
+ 
+ 	if (message)
+ 		printf(_("%s\n"), message);
+ }
+ 
+ 
+ /*
   * printSSLInfo
   *
   * Prints information about the current SSL connection, if SSL is in use