friendlymatthew commented on code in PR #21094:
URL: https://github.com/apache/datafusion/pull/21094#discussion_r2970324470
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datafusion/sql/src/unparser/rewrite.rs:
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@@ -318,6 +310,10 @@ pub(super) fn subquery_alias_inner_query_and_columns(
// Check if the inner projection and outer projection have a matching
pattern like
// Projection: j1.j1_id AS id
// Projection: j1.j1_id
+ if outer_projections.expr.len() != inner_projection.expr.len() {
+ return (plan, vec![]);
+ }
+
Review Comment:
can confirm that when I remove this, the test below will panic
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