zhuqi-lucas commented on code in PR #16771:
URL: https://github.com/apache/datafusion/pull/16771#discussion_r2206468646
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datafusion/expr/src/expr.rs:
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@@ -362,7 +362,7 @@ pub enum Expr {
Placeholder(Placeholder),
/// A placeholder which holds a reference to a qualified field
/// in the outer query, used for correlated sub queries.
- OuterReferenceColumn(DataType, Column),
+ OuterReferenceColumn(Box<(DataType, Column)>),
Review Comment:
Thank you @alamb for this good suggestion, addressed in latest PR.
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