viirya commented on code in PR #2585:
URL: https://github.com/apache/arrow-rs/pull/2585#discussion_r954424430
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arrow/src/compute/kernels/aggregate.rs:
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@@ -215,6 +215,70 @@ where
}
}
+/// Returns the min of values in the array.
+pub fn min_dyn<T, A: ArrayAccessor<Item = T::Native>>(array: A) ->
Option<T::Native>
+where
+ T: ArrowNumericType,
+ T::Native: Add<Output = T::Native>,
+{
+ match array.data_type() {
+ DataType::Dictionary(_, _) => {
+ let null_count = array.null_count();
+
+ if null_count == array.len() {
+ return None;
+ }
+
+ let mut has_value = false;
+ let mut n = T::default_value();
+ let iter = ArrayIter::new(array);
+ iter.into_iter().for_each(|value| {
+ if let Some(value) = value {
+ if !has_value || value < n {
Review Comment:
Handled it now and added a test.
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