niebayes commented on code in PR #24104:
URL: https://github.com/apache/datafusion/pull/24104#discussion_r3725378060
##########
datafusion/functions-aggregate/src/median.rs:
##########
@@ -104,22 +104,7 @@ impl Median {
// Integer inputs are coerced to Float64 so the average of the two
// middle values is not truncated. This matches DuckDB /
PostgreSQL / Spark.
// Float and Decimal inputs preserve their type.
- signature: Signature::one_of(
- vec![
- TypeSignature::Coercible(vec![Coercion::new_exact(
- TypeSignatureClass::Decimal,
- )]),
- TypeSignature::Coercible(vec![Coercion::new_exact(
- TypeSignatureClass::Float,
- )]),
- TypeSignature::Coercible(vec![Coercion::new_implicit(
- TypeSignatureClass::Native(logical_float64()),
- vec![TypeSignatureClass::Integer],
- NativeType::Float64,
- )]),
- ],
- Volatility::Immutable,
- ),
+ signature: Signature::user_defined(Volatility::Immutable),
Review Comment:
agree with Jefffrey
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