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https://issues.apache.org/jira/browse/ARROW-14185?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jabari Booker reassigned ARROW-14185:
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Assignee: Jabari Booker
> [C++] HashJoinNode should validate HashJoinNodeOptions
> ------------------------------------------------------
>
> Key: ARROW-14185
> URL: https://issues.apache.org/jira/browse/ARROW-14185
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: David Li
> Assignee: Jabari Booker
> Priority: Major
> Labels: good-first-issue, pull-request-available, query-engine
> Fix For: 9.0.0
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> 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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