jayzhan211 commented on code in PR #15022:
URL: https://github.com/apache/datafusion/pull/15022#discussion_r2045819769
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datafusion/functions-aggregate-common/src/aggregate/groups_accumulator.rs:
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@@ -163,6 +177,50 @@ impl GroupsAccumulatorAdapter {
/// invokes f(accumulator, values) for each group that has values
/// in group_indices.
+ fn invoke_per_accumulator<F>(
+ &mut self,
+ values: &[ArrayRef],
+ group_indices: &[usize],
+ opt_filter: Option<&BooleanArray>,
+ total_num_groups: usize,
+ f: F,
+ ) -> Result<()>
+ where
+ F: Fn(&mut dyn Accumulator, &[ArrayRef]) -> Result<()> + Copy,
Review Comment:
We can remove this `Copy` and call with `&f`
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