# File lib/aws/record/abstract_base.rb, line 488
        def shard_name name = nil
          case name
          when nil
            @_shard_name || self.name
          when AWS::DynamoDB::Table
            name.name.gsub(/^#{Record::table_prefix}/, '')
          when AWS::SimpleDB::Domain
            name.name.gsub(/^#{Record::domain_prefix}/, '')
          else name
          end
        end