alamb commented on code in PR #2168:
URL: https://github.com/apache/arrow-datafusion/pull/2168#discussion_r844259856
##########
ballista/rust/core/src/serde/mod.rs:
##########
@@ -508,15 +508,10 @@ mod tests {
&self,
children: Vec<Arc<dyn ExecutionPlan>>,
) -> datafusion::error::Result<Arc<dyn ExecutionPlan>> {
- match children.len() {
- 1 => Ok(Arc::new(TopKExec {
- input: children[0].clone(),
- k: self.k,
- })),
- _ => Err(DataFusionError::Internal(
- "TopKExec wrong number of children".to_string(),
- )),
- }
+ Ok(Arc::new(TopKExec {
Review Comment:
What would you think about adding an assert here such
as`assert_eq!(children.len(), 1)` on the theory it might catch bugs faster
when making changes?
The same question applies to other `with_new_children` implementations below
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