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https://issues.apache.org/jira/browse/HIVE-9074?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sergey Shelukhin updated HIVE-9074:
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Status: Patch Available (was: Open)
> add ability to force direct sql usage for perf reasons
> ------------------------------------------------------
>
> Key: HIVE-9074
> URL: https://issues.apache.org/jira/browse/HIVE-9074
> Project: Hive
> Issue Type: Bug
> Reporter: Sergey Shelukhin
> Attachments: HIVE-9074.patch
>
>
> Some people run direct SQL and hit failures (e.g. due to Oracle
> 1000-in-expressions stupidity, illegal cast "optimization" in Derby and
> Oracle, or some other Hive and DB bugs). Currently, it falls back to ORM for
> such cases, however that can have huge impact on perf, and some people would
> rather have it fail so they can see the problem.
> In addition to "off" and "on+fallback" modes, "on or fail" mode needs to be
> added. The default will remain the same.
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