For example, if I use UInt8 constant for if condition then only one branch is evaluated:
```sql
SELECT if(1, 'success', throwIf(1, 'Executing FALSE branch'))

┌─'success'─┐
│ success   │
└───────────┘

1 rows in set. Elapsed: 0.003 sec.
```

But if I use some constant expression, then both branches are evaluated:
```sql
SELECT if(empty(''), 'success', throwIf(1, 'Executing FALSE branch'))

0 rows in set. Elapsed: 0.003 sec.

Received exception from server (version 21.12.2):
Code: 395. DB::Exception: Received from localhost:9000. DB::Exception: Executing FALSE branch: While processing if(empty(''), 'success', throwIf(1, 'Executing FALSE branch')). (FUNCTION_THROW_IF_VALUE_IS_NON_ZERO)
```
{
    using ResultValueType = typename Op::ResultType;
public:
    
    explicit AssociativeGenericApplierImpl(const ColumnRawPtrs & in)
        : val_getter{ValueGetterBuilder::build(in[in.size() - N])}, next{in} {}
    
    inline ResultValueType apply(const size_t i) const
    {
        const auto a = val_getter(i);
        if constexpr (Op::isSaturable())
            return Op::isSaturatedValueTernary(a) ? a : Op::apply(a, next.apply(i));
        else
            return Op::apply(a, next.apply(i));
    }
private:
    const TernaryValueGetter val_getter;
    const AssociativeGenericApplierImpl<Op, N - 1> next;
};
template <typename Op>
class AssociativeGenericApplierImpl<Op, 1>