fix #393 need use data annotation [Column(DataType = DataType.Image), Nullable]
fix #393
need use data annotation [Column(DataType = DataType.Image), Nullable]

ronnyek/linq2db,LinqToDB4iSeries/linq2db,linq2db/linq2db,LinqToDB4iSeries/linq2db,MaceWindu/linq2db,linq2db/linq2db,MaceWindu/linq2db