See this thread:
Derby supports BLOB, so we should probably use it unless there are compelling reasons not to.
Of course, this can't be simple. Derby won't convert an Array[Byte] into a BLOB, so this will require some trickery.
We're going to close this for now (wontfix). If someone needs Derby and needs MappedBinary > 32700, please reopen this ticket and we'll work on it.
Imported from GitHub: http://github.com/dpp/liftweb/issues/3/find
Imported from Assembla: http://www.assembla.com/spaces/liftweb/tickets/3