Omega359 commented on code in PR #16925:
URL: https://github.com/apache/datafusion/pull/16925#discussion_r2240964937
##########
datafusion/physical-plan/src/windows/mod.rs:
##########
@@ -103,21 +103,38 @@ pub fn create_window_expr(
window_frame: Arc<WindowFrame>,
input_schema: &Schema,
ignore_nulls: bool,
+ distinct: bool,
) -> Result<Arc<dyn WindowExpr>> {
Ok(match fun {
WindowFunctionDefinition::AggregateUDF(fun) => {
- let aggregate = AggregateExprBuilder::new(Arc::clone(fun),
args.to_vec())
- .schema(Arc::new(input_schema.clone()))
- .alias(name)
- .with_ignore_nulls(ignore_nulls)
- .build()
- .map(Arc::new)?;
- window_expr_from_aggregate_expr(
- partition_by,
- order_by,
- window_frame,
- aggregate,
- )
+ if distinct {
Review Comment:
```Rust
let aggregate = if distinct {..} else {..};
window_expr_from_aggregate_expr(
partition_by,
order_by,
window_frame,
aggregate,
)
```
?
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