rtpsw commented on code in PR #34392:
URL: https://github.com/apache/arrow/pull/34392#discussion_r1195645080
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cpp/src/arrow/acero/asof_join_node.cc:
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@@ -248,15 +354,28 @@ struct MemoStore {
std::deque<OnType> times_;
void swap(MemoStore& memo) {
Review Comment:
This swaps the content of one `MemoStore` with another. When a `Rehash()`
occurs, a new `MemoStore` is populated and then it is swapped with the existing
one using this method.
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