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https://issues.apache.org/jira/browse/HIVE-19138?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16432853#comment-16432853
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Deepak Jaiswal commented on HIVE-19138:
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+1 pending results.
> Results cache: allow queries waiting on pending cache entries to check cache
> again if pending query fails
> ---------------------------------------------------------------------------------------------------------
>
> Key: HIVE-19138
> URL: https://issues.apache.org/jira/browse/HIVE-19138
> Project: Hive
> Issue Type: Sub-task
> Reporter: Jason Dere
> Assignee: Jason Dere
> Priority: Major
> Attachments: HIVE-19138.1.patch
>
>
> HIVE-18846 allows the results cache to refer to currently executing queries
> so that another query can wait for these results to become ready in the
> results cache. If the pending query fails then Hive will automatically skip
> the cache and do the full query compilation. Make a fix here so that if the
> pending query fails, Hive will still try to check the cache again in case the
> cache has another cached/pending result that can be used to answer the query.
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