Can't insert BLOB field (MySQL 3.23)

[Alex]

Hello !
I'm working with MySQL 3.23.34a, Windows 2000 and try to execute the following:

create table if not exists t1 (g longtext,h longtext)
INSERT t1(g,h) values (null, null)
UPDATE t1 SET g=LOAD_FILE('c:/f1.bin')
UPDATE t1 SET h=LOAD_FILE('c:/f2.bin')

After the 2-nd UPDATE I have got an error :
"Got error 139 from table handler"

Size(f1.bin)= Size(f2.bin)= 12Mb. If Size(f1.bin)+ Size(f2.bin) <= 16Mb script is executed successfully. The variable max_allowed_packet= 64 Mb. Is there the way to manage this problem ?

Alex