code: func DecodeRow(b []byte, cols map[int64]*types.FieldType, loc *time.Location) (map[int64]types.Datum, error) {
  	return DecodeRowWithMap(b, cols, loc, nil)
  }
docs: // DecodeRow decodes a byte slice into datums.
  // Row layout: colID1, value1, colID2, value2, .....