David Li created ARROW-14009:
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Summary: [C++] Ensure SourceNode truly feeds batches to plan in
parallel
Key: ARROW-14009
URL: https://issues.apache.org/jira/browse/ARROW-14009
Project: Apache Arrow
Issue Type: Improvement
Components: C++
Reporter: David Li
Assignee: David Li
Fix For: 6.0.0
While looking at some basic instrumentation, I noticed SourceNode calls
InputReceived directly in its Loop handler, meaning that we only ever process
one batch at a time (barring a pipeline breaker). We should instead submit
batches in parallel.
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