Weston Pace created ARROW-16260:
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Summary: [C++] Add backpressure to aggregate node
Key: ARROW-16260
URL: https://issues.apache.org/jira/browse/ARROW-16260
Project: Apache Arrow
Issue Type: Improvement
Components: C++
Reporter: Weston Pace
There are two possible cases I can think of where we might need backpressure
handling in aggregate node, though both are not a concern until we have
spillover
* Once we have spillover we may want to pause the input while we are busy
spilling to disk
* Once we have spillover we may want to pause reading from the spillover cache
if the sink is busy
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