comphead commented on code in PR #5537:
URL: https://github.com/apache/arrow-datafusion/pull/5537#discussion_r1131816757
##########
datafusion/expr/src/type_coercion/aggregates.rs:
##########
@@ -314,77 +314,45 @@ pub fn sum_return_type(arg_type: &DataType) ->
Result<DataType> {
/// function return type of variance
pub fn variance_return_type(arg_type: &DataType) -> Result<DataType> {
- match arg_type {
- DataType::Int8
- | DataType::Int16
- | DataType::Int32
- | DataType::Int64
- | DataType::UInt8
- | DataType::UInt16
- | DataType::UInt32
- | DataType::UInt64
- | DataType::Float32
- | DataType::Float64 => Ok(DataType::Float64),
- other => Err(DataFusionError::Plan(format!(
- "VAR does not support {other:?}"
- ))),
+ if NUMERICS.contains(arg_type) {
Review Comment:
sort of
```
fn is_numeric(arg_type: &DataType) -> bool {
return arg_type.is_numeric() && match arg_type {
Decimal128(_, _) | Decimal() => false
_ => true
}
}
```
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