jonathanc-n commented on code in PR #16716:
URL: https://github.com/apache/datafusion/pull/16716#discussion_r2196274758
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datafusion/physical-plan/src/joins/hash_join.rs:
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@@ -1498,6 +1498,23 @@ impl HashJoinStream {
let timer = self.join_metrics.join_time.timer();
+ // if the left side is empty, we can skip the (potentially expensive)
join operation
Review Comment:
I think we can do this in a follow up pr wdyt @nuno-faria?
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