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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:
-----------------------------------
    Attachment: HIVE-9074.patch

> 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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