alamb commented on a change in pull request #8503:
URL: https://github.com/apache/arrow/pull/8503#discussion_r513697726
##########
File path: rust/datafusion/src/physical_plan/merge.rs
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@@ -103,37 +105,56 @@ impl ExecutionPlan for MergeExec {
self.input.execute(0).await
}
_ => {
- let tasks = (0..input_partitions).map(|part_i| {
+ let (sender, receiver) =
mpsc::unbounded::<ArrowResult<RecordBatch>>();
Review comment:
Here is the a commit that passes all the tests:
https://github.com/alamb/arrow/commit/01b4d8758192b40494447401f8cb5bd970b38835
(again, based on this branch).
What performance benchmarks were you running? I can see if this change makes
any difference
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