srilman opened a new issue, #43694: URL: https://github.com/apache/arrow/issues/43694
### Describe the enhancement requested `arrow::dataset::Scanner` currently dispatches any CPU bounded tasks or operations, like decoding, to the default CPU thread pool `::arrow::internal::GetCpuThreadPool()`. However, for IO-bounded operations, we have the option to specify a separate thread pool using the `arrow::dataset::ScanOptions::io_context` option. It would be useful to add the option `arrow::dataset::ScanOptions::exec_context` (like found in other locations like the compute module) to do something similar. ### Component(s) C++ -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@arrow.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
