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https://issues.apache.org/jira/browse/HIVE-16604?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jesus Camacho Rodriguez updated HIVE-16604:
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Attachment: HIVE-16604.patch
> Use [NOT] ENFORCED for column constraint characteristics
> --------------------------------------------------------
>
> Key: HIVE-16604
> URL: https://issues.apache.org/jira/browse/HIVE-16604
> Project: Hive
> Issue Type: Improvement
> Affects Versions: 3.0.0
> Reporter: Carter Shanklin
> Assignee: Jesus Camacho Rodriguez
> Attachments: HIVE-16604.patch
>
>
> From HIVE-16575:
> {quote}
> SQL:2011 spec, 10.8, uses [ NOT ] ENFORCED for column constraint
> characteristics.
> I think Oracle invented DISABLE and NORELY and maybe others have copied it
> over time.
> A quick check I see DB2 uses the [ NOT ] ENFORCED. Teradata uses something
> else entirely.
> Personally I think there are advantages to adopting the standard approach.
> There is no standard approach for hinting the optimizer so we're on our own
> there.
> {quote}
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