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Posted to jira@arrow.apache.org by "David Li (Jira)" <ji...@apache.org> on 2021/09/30 19:10:00 UTC

[jira] [Created] (ARROW-14185) [C++] HashJoinNode should validate HashJoinOptions

David Li created ARROW-14185:
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             Summary: [C++] HashJoinNode should validate HashJoinOptions
                 Key: ARROW-14185
                 URL: https://issues.apache.org/jira/browse/ARROW-14185
             Project: Apache Arrow
          Issue Type: Improvement
          Components: C++
            Reporter: David Li
             Fix For: 6.0.0


At the very least key_cmp needs to match the number of join columns, there may be other invariants to uphold. Probably all the ones from the [semi-join PR|https://github.com/apache/arrow/pull/10845/files#diff-1028a02ecee91ae8a9fbb7318e1ce650760716d317457d48e0740c802287fbdbR38]: there must be the same, non-zero number of keys on both sides.



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