> I use jaybird 2.1.1 and if I connect to the database and create a
> statement with 'createStatement()' it works fine. I can works with
> BLOB's but if I use a fetchable statement instead of the old I got a
> 'FBCachedBlobField' instead of an 'FBBlobField' and with the cached
> there comes the error 'Invalid Blob ID'.
>
> I think the error comes from the FBCachedBlobField.

Can you create a small test case for it? Why I ask - I remember fixing
similar issue long time ago, so a test case is needed.

Thanks!
Roman