waynexia commented on code in PR #7455:
URL: https://github.com/apache/arrow-datafusion/pull/7455#discussion_r1316851165
##########
datafusion/optimizer/src/analyzer/subquery.rs:
##########
@@ -338,3 +339,57 @@ fn check_mixed_out_refer_in_window(window: &Window) ->
Result<()> {
Ok(())
}
}
+
+#[cfg(test)]
Review Comment:
Great suggestion. I plan to cover this case in
`datafusion/core/tests/user_defined/user_defined_plan.rs`. But since the
previous TopK is based on optimizer, I may need to add another extension plan
and an analyzer rule.
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