--- original/postgresql-7.1.1/src/bin/psql/command.c	Sat May  5 15:06:58 2001
+++ postgresql-7.1.1/src/bin/psql/command.c	Thu May 17 08:08:51 2001
@@ -93,6 +93,7 @@
 	size_t		blank_loc;
 	const char *continue_parse = NULL;	/* tell the mainloop where the
 										 * backslash command ended */
+	static int has_been_warned_about_syntax = 0;
 
 #ifdef USE_ASSERT_CHECKING
 	assert(line);
@@ -141,10 +142,11 @@
 
 		status = exec_command(new_cmd, line + 1, &continue_parse, query_buf);
 
-#if 0							/* turned out to be too annoying */
-		if (status != CMD_UNKNOWN && isalpha((unsigned char) new_cmd[0]))
-			psql_error("Warning: this syntax is deprecated\n");
-#endif
+		if (status != CMD_UNKNOWN && isalpha((unsigned char) new_cmd[0]) && (! has_been_warned_about_syntax))
+		{
+			has_been_warned_about_syntax++;
+			psql_error("Warning: this syntax is deprecated (this will be your only notice)\n");
+		}
 	}
 
 	if (status == CMD_UNKNOWN)