Open asfimport opened 3 years ago
Michal Nowakiewicz / @michalursa: Parallelism is implemented in hash group by. What remains is to benchmark to see how well it behaves for a set of varying dimensions, fix performance issues, investigate improvements for different cardinalities of groups, implement the improvements.
Implement parallel processing for hash group by. Make sure it works well (scales) for different cardinalities of groups.
Reporter: Michal Nowakiewicz / @michalursa
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Note: This issue was originally created as ARROW-12726. Please see the migration documentation for further details.