}
	if len(r.csvRecord) > 0 {
		r.csvRecord = r.csvRecord[:0]
	}
	for k := range r.nameIndexMap {
		delete(r.nameIndexMap, k)
	}
}

// Clone the record.
func (r *Record) Clone(dst sql.Record) sql.Record {
	other, ok := dst.(*Record)
	if !ok {
		other = &Record{}
	}
	if len(other.columnNames) > 0 {
		other.columnNames = other.columnNames[:0]
	}
	if len(other.csvRecord) > 0 {

		default:
			return fmt.Errorf("Cannot marshal unhandled type: %T", kv.Value)
		}
		csvRecord = append(csvRecord, columnValue)
	}

	w := csv.NewWriter(writer)
	w.Comma = opts.FieldDelimiter
	w.Quote = opts.Quote
	w.AlwaysQuote = opts.AlwaysQuote
	w.QuoteEscape = opts.QuoteEscape
	if err := w.Write(csvRecord); err != nil {
		return err
	}
	w.Flush()
	return w.Error()
}

		default:
			return fmt.Errorf("cannot marshal unhandled type: %s", typ.String())
		}
		csvRecord = append(csvRecord, columnValue)
	}
	w := csv.NewWriter(writer)
	w.Comma = opts.FieldDelimiter
	w.Quote = opts.Quote
	w.QuoteEscape = opts.QuoteEscape
	w.AlwaysQuote = opts.AlwaysQuote
	if err := w.Write(csvRecord); err != nil {
		return err
	}
	w.Flush()
	return w.Error()
}