godliness opened a new issue, #39875:
URL: https://github.com/apache/arrow/issues/39875
### Describe the usage question you have. Please include as many useful
details as possible.
```
select 1.00/id from test;
id is decimal(15,2) which is 16906.24
1.00 is decimal(3,2)
but the result is decimal(3, 0);
```
looks like it's follow the rule that is
rule1
```
Result<TypeHolder> ResolveDecimalDivisionOutput(KernelContext*,
const
std::vector<TypeHolder>& types) {
return ResolveDecimalBinaryOperationOutput(
types, [](int32_t p1, int32_t s1, int32_t p2, int32_t s2) {
DCHECK_GE(s1, s2);
const int32_t scale = s1 - s2;
const int32_t precision = p1;
return std::make_pair(precision, scale);
});
}
```
but the document is show that
rule 2:
```
scale = max(4, s1 + p2 - s2 + 1)
precision = p1 - s1 + s2 + scale
```
How could i use the second rule?
### Component(s)
C++
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