# File lib/og/backends/mysql.rb, line 343
        def deserialize_all(res, klass)        
                return [] unless valid?(res)

                entities = []

                for tuple in (0...res.num_rows)
                        row = res.fetch_row()

                        entity = klass.new()
                        entity.og_deserialize(row)
                        
#                       get_join_fields(res, tuple, entity, join_fields) if join_fields
                        
                        entities << entity
                end
                
                return entities
        end