alamb commented on code in PR #5560:
URL: https://github.com/apache/arrow-datafusion/pull/5560#discussion_r1134191907
##########
datafusion/physical-expr/src/aggregate/median.rs:
##########
@@ -151,7 +151,12 @@ impl Accumulator for MedianAccumulator {
// ignore null values
.filter(|v| !v.is_null())
.cloned(),
- )?;
+ )
+ .map_err(|_| {
+ DataFusionError::Execution(
+ "median requires at least one non-null value".into(),
+ )
+ })?;
Review Comment:
I think so.
What about explicitly checking for all nulls with something like:
```rust
if !self.all_values
.iter()
.any(|v| !v.is_null()) {
.. raise error here
}
```
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