return multiplyWithOverflowGuard(cr.MaxCost, *cardinalityCost.MaxCardinality)
	}
	return multiplyWithOverflowGuard(cr.MaxCost, cr.MaxCardinality)
}

func getCostErrorMessage(costName string, expressionCost, costLimit uint64) string {
	exceedFactor := float64(expressionCost) / float64(costLimit)
	var factor string
	if exceedFactor > 100.0 {