Dandandan commented on code in PR #16083:
URL: https://github.com/apache/datafusion/pull/16083#discussion_r2116661763
##########
datafusion/physical-plan/src/joins/utils.rs:
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@@ -1126,6 +1153,28 @@ where
.collect()
}
+pub(crate) fn get_mark_indices<T: ArrowPrimitiveType>(
+ range: &Range<usize>,
+ input_indices: &PrimitiveArray<T>,
+) -> PrimitiveArray<UInt32Type>
+where
+ NativeAdapter<T>: From<<T as ArrowPrimitiveType>::Native>,
+{
+ let mut builder = PrimitiveBuilder::<UInt32Type>::new();
+
+ for idx in range.clone() {
+ let matched = input_indices.iter().flatten().any(|v| v.as_usize() ==
idx);
Review Comment:
This seems like a potential bottleneck.
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