Yaron Gvili created ARROW-17653:
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Summary: [C++] AsofJoinNode 128-bit hashing
Key: ARROW-17653
URL: https://issues.apache.org/jira/browse/ARROW-17653
Project: Apache Arrow
Issue Type: Improvement
Components: C++
Reporter: Yaron Gvili
A recent version of `AsofJoinNode` uses 64-bit hashing for by-key values. This
[leads to a non-negligible probability of
collisions|https://github.com/apache/arrow/pull/13880] that are not arbitrated.
Using 128-bit hashing, the probability will become negligible.
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