peter-toth commented on code in PR #10543:
URL: https://github.com/apache/datafusion/pull/10543#discussion_r1614522462
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datafusion/physical-plan/src/work_table.rs:
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@@ -169,7 +169,7 @@ impl ExecutionPlan for WorkTableExec {
&self.cache
}
- fn children(&self) -> Vec<Arc<dyn ExecutionPlan>> {
+ fn children(&self) -> Vec<&Arc<dyn ExecutionPlan>> {
Review Comment:
Actualy, I don't think we can return a slice of references. Returning an
empty slice here would be ok, but at other places where there are children to
return (e.g. in `BinaryExpr`) we need to build a temporary container (vec or
array) to store the references of children and then return a slice of the
container, but who will own the container?
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