alamb commented on code in PR #5559:
URL: https://github.com/apache/arrow-datafusion/pull/5559#discussion_r1142117488
##########
datafusion/expr/src/utils.rs:
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@@ -69,6 +69,94 @@ pub fn grouping_set_expr_count(group_expr: &[Expr]) ->
Result<usize> {
}
}
+fn powerset<T>(slice: &[T]) -> Vec<Vec<&T>> {
Review Comment:
@yukkit can you please answer @ozankabak 's question?
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