RFE: query service handling of bytea DB columns

[mtbcarroll]

$ bin/omero hql --limit 1 'select params from ParseJob'
Using session 0b9d8ca4-a208-4f28-8fff-51ba6deb1e18 (root@gretzky.openmicroscopy.org.uk:4064). Idle timeout: 10.0 min. Current group: read-only-1
Traceback (most recent call last):
  File "/home/mtbc/src/openmicroscopy/dist/bin/omero", line 125, in <module>
    rv = omero.cli.argv()
  File "/home/mtbc/src/openmicroscopy/dist/lib/python/omero/cli.py", line 1197, in argv
    cli.invoke(args[1:])
  File "/home/mtbc/src/openmicroscopy/dist/lib/python/omero/cli.py", line 745, in invoke
    stop = self.onecmd(line, previous_args)
  File "/home/mtbc/src/openmicroscopy/dist/lib/python/omero/cli.py", line 814, in onecmd
    self.execute(line, previous_args)
  File "/home/mtbc/src/openmicroscopy/dist/lib/python/omero/cli.py", line 894, in execute
    args.func(args)
  File "/home/mtbc/src/openmicroscopy/dist/lib/python/omero/plugins/hql.py", line 44, in __call__
    self.hql(args)
  File "/home/mtbc/src/openmicroscopy/dist/lib/python/omero/plugins/hql.py", line 66, in hql
    rv = self.project(q, args.query, p, ice_map)
  File "/home/mtbc/src/openmicroscopy/dist/lib/python/omero/plugins/hql.py", line 221, in project
    rv = querySvc.projection(queryStr, params, ice_map)
  File "/home/mtbc/src/openmicroscopy/dist/lib/python/omero_api_IQuery_ice.py", line 237, in projection
    return _M_omero.api.IQuery._op_projection.invoke(self, ((query, params), _ctx))
omero.ApiUsageException: exception ::omero::ApiUsageException
{
    serverStackTrace = 
    serverExceptionClass = 
    message = Unsupported conversion to rtype from [B:[B@7c5ad1fa
}

It is probably worth rethinking how byte array values are handled through RType and bin/omero hql.