jonathanc-n commented on code in PR #16727:
URL: https://github.com/apache/datafusion/pull/16727#discussion_r2195714087
##########
datafusion/physical-plan/src/joins/hash_join.rs:
##########
@@ -1005,46 +1016,46 @@ async fn collect_left_input(
let mut offset = 0;
// Updating hashmap starting from the last batch
- let batches_iter = batches.iter().rev();
- for batch in batches_iter.clone() {
- hashes_buffer.clear();
- hashes_buffer.resize(batch.num_rows(), 0);
- update_hash(
- &on_left,
- batch,
- &mut *hashmap,
- offset,
- &random_state,
- &mut hashes_buffer,
- 0,
- true,
- )?;
- offset += batch.num_rows();
+
+ let batches_iter = batches.iter();
+ let mut coalescer = BatchCoalescer::new(schema, num_rows);
Review Comment:
Thank you for pointint ghtat out, I misunderstood what it was used for
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