Columns out of range-error

Hi,

We have a Problem with postgresql 7.4.3 and jdbc

We have a table with 200 columns and want to insert 50 datasets (40-50
columns each) into this table. With this we write a file into the memory
with about 650 columns. And this displays an error: columnindex out of
range.
In the #postgres IRC i was told to ask you if this could be a bug in jdbc.

Thnx
Woolve73
Toby