fr, err := parquetgo.NewFileReader(rsc)
	if err != nil {
		return nil, errParquetParsingError(err)
	}

	return &Reader{Closer: rsc, r: fr}, nil
}

func (pr *Reader) Read(dst sql.Record) (rec sql.Record, rerr error) {
	nextRow, err := pr.r.NextRow()
	if err != nil {
		if err == io.EOF {
			return nil, err
		}
		return nil, errParquetParsingError(err)
	}

	readCloser io.ReadCloser
}

// Read - reads single record.
func (r *Reader) Read(dst sql.Record) (sql.Record, error) {
	v, ok := <-r.valueCh
	if !ok {
		if err := r.decoder.Err(); err != nil {
			return nil, errJSONParsingError(err)
		}
		return nil, io.EOF
	}

	var kvs jstream.KVS
	if v.ValueType == jstream.Object {
		// This is a JSON object type (that preserves key
		// order)

		// Read column names
		// Get one line.
		b, err := r.nextSplit(0, nil)
		if err != nil {
			r.err = err
			return err
		}
		if !utf8.Valid(b) {
			return errInvalidTextEncodingError()
		}
		reader := newReader(bytes.NewReader(b))
		record, err := reader.Read()
		if err != nil {
			r.err = err
			if err != io.EOF {
				r.err = errCSVParsingError(err)
				return errCSVParsingError(err)
			}

				err := ChecksumMismatch{
					Want: r.contentHash.Encoded,
					Got:  base64.StdEncoding.EncodeToString(sum),
				}
				return n, err
			}
		}
	}
	if err != nil && err != io.EOF {
		if v, ok := err.(etag.VerifyError); ok {
			return n, BadDigest{
				ExpectedMD5:   v.Expected.String(),
				CalculatedMD5: v.Computed.String(),
			}
		}
	}
	return n, err
}

			tokens = b
		}
	} else { // all tokens go towards payload
		need = int(math.Min(float64(b), float64(need)))
		tokens = need
	}

	err = r.throttle.WaitN(r.ctx, tokens)
	if err != nil {
		return
	}

	n, err = r.r.Read(buf[:need])
	if err != nil {
		r.lastErr = err
		return
	}
	r.m.updateMeasurement(r.opts.BucketOptions, uint64(tokens))
	return
}