Native decimal 32/64/256 bit support for log

### Is your feature request related to a problem or challenge?

#17023 introduced support for doing log on decimal 128 & 256 bit. 256 is handled by downcasting to 128 if value can fit in the range, otherwise raising an error.

### Describe the solution you'd like

Look into supporting log on decimal 256 values that don't fit into decimal 128 bit.

### Describe alternatives you've considered

_No response_

### Additional context

Code reference:

https://github.com/apache/datafusion/blob/572c204394786f013b5c49648e3fdb153b7f9f73/datafusion/functions/src/math/log.rs#L129-L138

	/// Binary function to calculate an integer logarithm of Decimal128 `value` using `base` base
	/// Returns error if base is invalid or if value is out of bounds of Decimal128
	fn log_decimal256(value: i256, scale: i8, base: f64) -> Result<f64, ArrowError> {
	match value.to_i128() {
	Some(value) => log_decimal128(value, scale, base),
	None => Err(ArrowError::NotYetImplemented(format!(
	"Log of Decimal256 larger than Decimal128 is not yet supported: {value}"
	))),
	}
	}

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Native decimal 32/64/256 bit support for log #17555

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Native decimal 32/64/256 bit support for log #17555

Description

Is your feature request related to a problem or challenge?

Describe the solution you'd like

Describe alternatives you've considered

Additional context

Metadata

Metadata

Assignees

Labels

Type

Projects

Milestone

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Development

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