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https://issues.apache.org/jira/browse/HIVE-23934?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stamatis Zampetakis reassigned HIVE-23934:
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> Refactor TezCompiler#markSemiJoinForDPP to avoid redundant operations in
> nested while
> -------------------------------------------------------------------------------------
>
> Key: HIVE-23934
> URL: https://issues.apache.org/jira/browse/HIVE-23934
> Project: Hive
> Issue Type: Improvement
> Reporter: Stamatis Zampetakis
> Assignee: Stamatis Zampetakis
> Priority: Minor
>
> Most of the code inside the nested while loop can be extracted and computed
> only once in the external loop. Moreover there are catch clauses for NPE
> which seem rather predictable and could possibly be avoided by proper checks.
>
> The goal of this issue is to refactor TezCompiler#markSemiJoinForDPP method
> to avoid redundant operations and improve code readability. As a side effect
> of this refactoring the method will be slightly more efficient although
> unlikely to have observable difference in practice.
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