adriangb commented on code in PR #21182:
URL: https://github.com/apache/datafusion/pull/21182#discussion_r3037016492
##########
datafusion/physical-plan/src/sorts/sort_preserving_merge.rs:
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@@ -366,7 +366,7 @@ impl ExecutionPlan for SortPreservingMergeExec {
.map(|partition| {
let stream =
self.input.execute(partition,
Arc::clone(&context))?;
- Ok(spawn_buffered(stream, 1))
+ Ok(spawn_buffered(stream, 16))
Review Comment:
Ah okay I misunderstood the benchmarks. I thought the wins were Inexact
cases. Ignore my suggestion then.
BufferExec approach sounds good!
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