}
		if offset != 0 || length != -1 {
			// Offsets do not make sense in parquet files.
			return errors.New("parquet format does not support offsets")
		}
		var err error
		s3Select.recordReader, err = parquet.NewParquetReader(rsc, &s3Select.Input.ParquetArgs)
		return err
	}

	return fmt.Errorf("unknown input format '%v'", s3Select.Input.format)
}

func (s3Select *S3Select) marshal(buf *bytes.Buffer, record sql.Record) error {