Storm\Drivers\Platforms\Mysql\Columns\DataTypes\DateTimeDataType::sub PHP Метод

    public function sub(CoreExpression $ObjectExpression, array $ArgumentExpressions)
    {
        $IntervalExpression = $ArgumentExpressions[0];
        if ($IntervalExpression instanceof E\ConstantExpression && $IntervalExpression->GetValue() instanceof \DateInterval) {
            $IntervalValue = $ArgumentExpressions[0]->GetValue();
            $IntervalValue->invert = $IntervalValue->invert === 1 ? 0 : 1;
            $ArgumentExpressions[0] = $IntervalValue;
        } else {
            $ArgumentExpressions[0] = Expression::UnaryOperation(Operators\Unary::Negation, $IntervalExpression);
        }
        return $this->add($ObjectExpression, $ArgumentExpressions);
    }