rtpsw commented on code in PR #13880:
URL: https://github.com/apache/arrow/pull/13880#discussion_r946933735
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cpp/src/arrow/compute/exec/asof_join_node.cc:
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@@ -37,13 +39,41 @@
namespace arrow {
namespace compute {
-// Remove this when multiple keys and/or types is supported
-typedef int32_t KeyType;
+template <typename T, typename V = typename T::value_type>
Review Comment:
It's just a convenience for writing more compact code when the begin/end
iterators to `std::find` are those of the container.
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