return nil
	}

	intV, ok1i := v.ToInt()
	intA, ok2i := a.ToInt()
	if ok1i && ok2i {
		result := intV
		if !isMax {
			if intA < result {
				result = intA
			}
		} else {
			if intA > result {
				result = intA
			}
		}
		v.setInt(result)
		return nil
	}

	floatV, _ := v.ToFloat()
	floatA, _ := a.ToFloat()
	var result float64
	if !isMax {

		}
		argVal.setFloat(f)
		err = e.aggregate.runningSum.arithOp(opPlus, argVal)

	case aggFnMin:
		err = e.aggregate.runningMin.minmax(argVal, false, isFirstRow)

	case aggFnMax:
		err = e.aggregate.runningMax.minmax(argVal, true, isFirstRow)

	default:
		err = errInvalidAggregation
	}

	return err
}

func FuzzReader(f *testing.F) {
	b := bytes.NewBuffer(nil)
	w := NewWriter(b)