[GitHub] [arrow] icexelloss commented on a diff in pull request #35874: GH-35838: [C++] Add backpressure test for asof join node

[via GitHub]

icexelloss commented on code in PR #35874:
URL: https://github.com/apache/arrow/pull/35874#discussion_r1233076581


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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:
   @rtpsw Do we still need to change this. If so, why?



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