jayzhan211 commented on code in PR #15867:
URL: https://github.com/apache/datafusion/pull/15867#discussion_r2061907296
##########
datafusion/optimizer/src/single_distinct_to_groupby.rs:
##########
@@ -84,9 +87,11 @@ fn is_single_distinct_agg(aggr_expr: &[Expr]) ->
Result<bool> {
}
aggregate_count += 1;
if *distinct {
+ distinct_count += 1;
for e in args {
fields_set.insert(e);
}
+ distinct_func = Some(Arc::clone(func));
Review Comment:
we can record the name instead of the whole func
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