icexelloss commented on code in PR #35874:
URL: https://github.com/apache/arrow/pull/35874#discussion_r1229979720
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cpp/src/arrow/acero/asof_join_node.cc:
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@@ -529,7 +529,7 @@ class KeyHasher {
size_t index_;
std::vector<col_index_t> indices_;
std::vector<KeyColumnMetadata> metadata_;
- const RecordBatch* batch_;
+ std::atomic<const RecordBatch*> batch_;
Review Comment:
I am somewhat confused. If this is single-threaded, then we don't need this
to be atomic?
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