Bug mysqla, czy mój błąd?, gdy w polu char(40) znajduje się liczba Opcje

[L_Devil]

Witam

Mam tabelę następującej struktury i treści:

Kod

+-------+---------+------------+-------------+
| id    |  owner  |    name    |    value    |
|int(15)| int(7)  |   char(40) |   char(40)  |
+-------+---------+------------+-------------+
|   1   |    1    |   points   |     75      |
|   2   |    1    | points_add |    150      |
|   3   |    1    | points_max |    5000     |
|   4   |    1    |  costam    | jakas_dana  |
|   5   |    2    |  points    |    250      |
|   6   |    2    | points_add |    150      |
|   7   |    2    | points_max |    5000     |
|   8   |    3    |  points    |    4900     |
|   9   |    3    | points_add |    250      |
|  10   |    3    | points_max |    5000     |
|  11   |    4    |  points    |    5500     |
|  12   |    4    | points_add |    250      |
|  13   |    4    | points_max |    5000     |
|  14   |    4    |  costam    | jakas_dana  |
+-------+---------+------------+-------------+

Wywołuję na niej zapytanie

[SQL] pobierz, plaintext 
UPDATE
TABLE AS t1,
TABLE AS t2,
TABLE AS t3
SET t1.value = 
IF(t1.value > t2.value, t1.value, 
	IF(t1.value+t3.value > t2.value, t2.value, t1.value+t3.value)
)
WHERE t2.owner = t1.owner AND t3.owner = t1.owner AND t1.name='points' AND t2.name='points_max' AND t3.name='points_add';
[SQL] pobierz, plaintext 

Spodziewany rezultat:

Kod

+-------+---------+------------+-------------+
| id    |  owner  |    name    |    value    |
|int(15)| int(7)  |   char(40) |   char(40)  |
+-------+---------+------------+-------------+
|   1   |    1    |   points   |     225     |
|   2   |    1    | points_add |    150      |
|   3   |    1    | points_max |    5000     |
|   4   |    1    |  costam    | jakas_dana  |
|   5   |    2    |  points    |    400      |
|   6   |    2    | points_add |    150      |
|   7   |    2    | points_max |    5000     |
|   8   |    3    |  points    |    5000     |
|   9   |    3    | points_add |    250      |
|  10   |    3    | points_max |    5000     |
|  11   |    4    |  points    |    5500     |
|  12   |    4    | points_add |    250      |
|  13   |    4    | points_max |    5000     |
|  14   |    4    |  costam    | jakas_dana  |
+-------+---------+------------+-------------+

Otrzymany rezultat:

Kod

+-------+---------+------------+-------------+
| id    |  owner  |    name    |    value    |
|int(15)| int(7)  |   char(40) |   char(40)  |
+-------+---------+------------+-------------+
|   1   |    1    |   points   |     75      |  // Tutaj nie podniosło
|   2   |    1    | points_add |    150      |
|   3   |    1    | points_max |    5000     |
|   4   |    1    |  costam    | jakas_dana  |
|   5   |    2    |  points    |    400      |
|   6   |    2    | points_add |    150      |
|   7   |    2    | points_max |    5000     |
|   8   |    3    |  points    |    5000     |
|   9   |    3    | points_add |    250      |
|  10   |    3    | points_max |    5000     |
|  11   |    4    |  points    |    5500     |
|  12   |    4    | points_add |    250      |
|  13   |    4    | points_max |    5000     |
|  14   |    4    |  costam    | jakas_dana  |
+-------+---------+------------+-------------+

Ktoś wie, skąd się takie coś bierze?