comphead commented on code in PR #16083:
URL: https://github.com/apache/datafusion/pull/16083#discussion_r2141908140
##########
datafusion/physical-plan/src/joins/utils.rs:
##########
@@ -1102,6 +1129,30 @@ 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 bitmap = BooleanBufferBuilder::new(range.len());
+ bitmap.append_n(range.len(), false);
+ input_indices
+ .iter()
+ .flatten()
+ .map(|v| v.as_usize())
+ .filter(|v| range.contains(v))
+ .for_each(|v| {
+ bitmap.set_bit(v - range.start, true);
+ });
Review Comment:
`map.filter.foreach` wondering can it be done in single iteration?
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