Ben Kietzman created ARROW-10630:
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Summary: [C++][Compute] Support sharing KernelState between
processes
Key: ARROW-10630
URL: https://issues.apache.org/jira/browse/ARROW-10630
Project: Apache Arrow
Issue Type: Improvement
Components: C++
Affects Versions: 2.0.0
Reporter: Ben Kietzman
>From the mailing list discussion:
>https://lists.apache.org/thread.html/ra2a8f9fc5cf621bd79a6db4e578ad133dd921722f24e4c220e4ba07f%40%3Cdev.arrow.apache.org%3E
In a distributed context, it would be useful to send a KernelState from one
process to another. For example when distributing computation of mean, the
completed states of each process must be merged before finalization. This could
be supported by adding to the KernelState interface ({{KernelState::{Serialize,
Deserialize}}} or by adding functions to ScalarAggregateKernel.
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