>> This is the same issue as in SELECT * FROM myTable WHERE ? IS NULL OR
>> myPk = ? that was discussed some time ago.
>>
> Can you give me the link where the discussion was? I have the same
> problem as the SQL shown but I cannot found the discussion on that issue.

See http://groups.yahoo.com/group/Firebird-Java/message/7197 thread and
http://groups.yahoo.com/group/Firebird-Java/message/7204 message
especially.

But I do not think that will help you a lot - there is no fix or
workaround for this problem.

Roman