display

mysql> SELECT * FROM t1;
+-----+------+
| num | val  |
+-----+------+
|   1 | one  |
|   2 | two  |
|   3 | tree |
+-----+------+
3 rows in set (0.00 sec)

mysql> SELECT * FROM t2;
+-----+------+
| num | val  |
+-----+------+
|   1 | eins |
|   2 | zwei |
|   3 | drei |
|   4 | vier |
+-----+------+
4 rows in set (0.00 sec)

mysql>
mysql> SELECT * FROM t1 RIGHT JOIN t2 USING(num);
+-----+------+------+
| num | val  | val  |
+-----+------+------+
|   1 | eins | one  |
|   2 | zwei | two  |
|   3 | drei | tree |
|   4 | vier | ( ﾟ д ﾟ ) |
+-----+------+------+
4 rows in set (0.00 sec)

patch

*** client/mysql.cc.orig        2014-01-15 18:25:45.547811486 +0900
--- client/mysql.cc     2014-01-28 13:49:26.228813696 +0900
***************
*** 3752,3759 ****

        if (cur[off] == NULL)
        {
!         buffer= "NULL";
!         data_length= 4;
        }
        else
        {
--- 3752,3759 ----

        if (cur[off] == NULL)
        {
!         buffer= "( ﾟ д ﾟ )";
!         data_length= 14;
        }
        else
        {