> Unfortunately, I've added a ps.clearBatch() call, and it does not
> fix the problem. Here is my new test case:
> ...
> I get the same violation of primary key constraint pk_foo on the
> second executeBatch(). Maybe the problem is in clearBatch()? Hope
> this helps.

The bug was deeper than I thought. It is fixed now. Unfortunatelly there is
no workaround for RC3 except creating new prepared statement. If you wish,
you can build the driver from the CVS, but give some time for SF.net
anonymous CVS synchronization.

Thanks a lot for your help!
Roman