jackwener commented on code in PR #6820:
URL: https://github.com/apache/arrow-datafusion/pull/6820#discussion_r1249454828
##########
datafusion/expr/src/utils.rs:
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@@ -827,14 +827,13 @@ pub fn from_plan(
window_expr: expr[0..window_expr.len()].to_vec(),
schema: schema.clone(),
})),
- LogicalPlan::Aggregate(Aggregate {
- group_expr, schema, ..
- }) => Ok(LogicalPlan::Aggregate(Aggregate::try_new_with_schema(
- Arc::new(inputs[0].clone()),
- expr[0..group_expr.len()].to_vec(),
- expr[group_expr.len()..].to_vec(),
- schema.clone(),
- )?)),
+ LogicalPlan::Aggregate(Aggregate { group_expr, .. }) => {
Review Comment:
> Is this a change to make the code more defensive, or do you think it is
causing a problem?
it will cause some problem, but it's hidden by other code.
> Related, perhaps we should remove Aggregate::try_new_with_schema as well
(to force the recalculation / validation of the output schema)?
we don't need delete it, because some condition we don't change expr, such
`with new inputs`
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