viirya commented on code in PR #8794:
URL: https://github.com/apache/arrow-datafusion/pull/8794#discussion_r1447936606
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datafusion/core/src/physical_optimizer/enforce_distribution.rs:
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@@ -1208,6 +1201,12 @@ fn ensure_distribution(
true
};
+ let add_roundrobin = enable_round_robin
+ // Operator benefits from partitioning (e.g. filter):
+ && (would_benefit && repartition_beneficial_stats)
+ // Unless partitioning doesn't increase the partition count,
it is not beneficial:
Review Comment:
I think you are right. This is original comment and looks incorrect.
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