irenjj commented on code in PR #15253:
URL: https://github.com/apache/datafusion/pull/15253#discussion_r2001176277
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datafusion/expr/src/expr.rs:
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@@ -2596,6 +2612,176 @@ impl Display for SchemaDisplay<'_> {
}
}
+struct SqlDisplay<'a>(&'a Expr);
+impl Display for SqlDisplay<'_> {
Review Comment:
Maybe we should take nested expr into consideration, like `aggr(case aggr()
when...)`
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