Bug #21618: NULL shown as empty string in client

The column's NOT NULL flag doesn't affect what we should print.  Remove the
wrong logic that does check it.

Also, verify that this and the previous two tests print the same data as 
other output formats.
parent 13331b8d
......@@ -2270,10 +2270,8 @@ print_table_data(MYSQL_RES *result)
MYSQL_ROW cur;
MYSQL_FIELD *field;
bool *num_flag;
bool *not_null_flag;
num_flag=(bool*) my_alloca(sizeof(bool)*mysql_num_fields(result));
not_null_flag=(bool*) my_alloca(sizeof(bool)*mysql_num_fields(result));
if (info_flag)
{
print_field_types(result);
......@@ -2307,7 +2305,6 @@ print_table_data(MYSQL_RES *result)
MAX_COLUMN_LENGTH),
field->name);
num_flag[off]= IS_NUM(field->type);
not_null_flag[off]= IS_NOT_NULL(field->flags);
}
(void) tee_fputs("\n", PAGER);
tee_puts((char*) separator.ptr(), PAGER);
......@@ -2328,7 +2325,7 @@ print_table_data(MYSQL_RES *result)
uint extra_padding;
/* If this column may have a null value, use "NULL" for empty. */
if (! not_null_flag[off] && (cur[off] == NULL))
if (cur[off] == NULL)
{
buffer= "NULL";
data_length= 4;
......@@ -2368,7 +2365,6 @@ print_table_data(MYSQL_RES *result)
}
tee_puts((char*) separator.ptr(), PAGER);
my_afree((gptr) num_flag);
my_afree((gptr) not_null_flag);
}
......
......@@ -85,6 +85,12 @@ c_cp932
| NULL | NULL | Τη γλώσσα |
| NULL | NULL | ᛖᚴ ᚷᛖᛏ |
+------+------+---------------------------+
i j k
NULL 1 NULL
Field Type Null Key Default Extra
i int(11) YES NULL
j int(11) NO
k int(11) YES NULL
+------+---+------+
| i | j | k |
+------+---+------+
......@@ -97,6 +103,10 @@ c_cp932
| j | int(11) | NO | | | |
| k | int(11) | YES | | NULL | |
+-------+---------+------+-----+---------+-------+
i s1
1 x
2 NULL
3
+------+------+
| i | s1 |
+------+------+
......@@ -104,4 +114,11 @@ c_cp932
| 2 | NULL |
| 3 | |
+------+------+
unhex('zz')
NULL
+-------------+
| unhex('zz') |
+-------------+
| NULL |
+-------------+
End of 5.0 tests
......@@ -70,13 +70,21 @@ drop table t1;
#
# "DESCRIBE" commands may return strange NULLness flags.
#
--exec $MYSQL --default-character-set utf8 test -e "create table t1 (i int, j int not null, k int); insert into t1 values (null, 1, null); select * from t1; describe t1; drop table t1;"
--exec $MYSQL -t --default-character-set utf8 test -e "create table t1 (i int, j int not null, k int); insert into t1 values (null, 1, null); select * from t1; describe t1; drop table t1;"
#
# Bug#19564: mysql displays NULL instead of space
#
--exec $MYSQL test -e "create table b19564 (i int, s1 char(1)); insert into b19564 values (1, 'x'); insert into b19564 values (2, NULL); insert into b19564 values (3, ' '); select * from b19564 order by i; drop table b19564;"
--exec $MYSQL -t test -e "create table b19564 (i int, s1 char(1)); insert into b19564 values (1, 'x'); insert into b19564 values (2, NULL); insert into b19564 values (3, ' '); select * from b19564 order by i; drop table b19564;"
#
# Bug#21618: NULL shown as empty string in client
#
--exec $MYSQL test -e "select unhex('zz');"
--exec $MYSQL -t test -e "select unhex('zz');"
--echo End of 5.0 tests
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment