theirix commented on code in PR #17023:
URL: https://github.com/apache/datafusion/pull/17023#discussion_r2339668835
##########
datafusion/functions/src/math/log.rs:
##########
@@ -58,21 +64,91 @@ impl Default for LogFunc {
impl LogFunc {
pub fn new() -> Self {
- use DataType::*;
Self {
signature: Signature::one_of(
vec![
- Exact(vec![Float32]),
- Exact(vec![Float64]),
- Exact(vec![Float32, Float32]),
- Exact(vec![Float64, Float64]),
+ Numeric(1),
+ Numeric(2),
+ Exact(vec![DataType::Float32]),
+ Exact(vec![DataType::Float64]),
+ Exact(vec![DataType::Float32, DataType::Float32]),
+ Exact(vec![DataType::Float64, DataType::Float64]),
+ Exact(vec![
+ DataType::Int64,
+ DataType::Decimal128(DECIMAL128_MAX_PRECISION, 0),
+ ]),
+ Exact(vec![
+ DataType::Float32,
+ DataType::Decimal128(DECIMAL128_MAX_PRECISION, 0),
+ ]),
+ Exact(vec![
+ DataType::Float64,
+ DataType::Decimal128(DECIMAL128_MAX_PRECISION, 0),
+ ]),
+ Exact(vec![
+ DataType::Int64,
+ DataType::Decimal256(DECIMAL256_MAX_PRECISION, 0),
+ ]),
+ Exact(vec![
+ DataType::Float32,
+ DataType::Decimal256(DECIMAL256_MAX_PRECISION, 0),
+ ]),
+ Exact(vec![
+ DataType::Float64,
+ DataType::Decimal256(DECIMAL256_MAX_PRECISION, 0),
+ ]),
Review Comment:
I think adding a null coercion for numerics could help, because it worked
with float32 in main. Null handling is hard because we have to conform with
PostgreSQL and/or standard
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