jhorstmann commented on a change in pull request #8598:
URL: https://github.com/apache/arrow/pull/8598#discussion_r519019958
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File path: rust/arrow/src/compute/kernels/aggregate.rs
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@@ -152,9 +152,21 @@ where
let data_chunks = data.chunks_exact(64);
let remainder = data_chunks.remainder();
- let bit_chunks = buffer.bit_chunks(array.offset(), array.len());
+ let buffer_slice = buffer.bit_slice().view(array.offset(),
array.len());
+ let buffer_chunks = buffer_slice.chunks::<u64>();
+
+ let buffer_remainder_bits: u64 = buffer_chunks.remainder_bits();
+
+ let buffer_chunk_iter = buffer_chunks.interpret();
+
+ remainder.iter().enumerate().for_each(|(i, value)| {
Review comment:
Can we move the remainder loop down again so that we are summing
elements in the order that they are in the array?
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