Vineet Garg updated HIVE-18598:
    Status: Patch Available  (was: Open)

> Disallow NOT NULL constraints to be ENABLED/ENFORCED with EXTERNAL table
> ------------------------------------------------------------------------
>                 Key: HIVE-18598
>                 URL: https://issues.apache.org/jira/browse/HIVE-18598
>             Project: Hive
>          Issue Type: Task
>          Components: SQL
>            Reporter: Vineet Garg
>            Assignee: Vineet Garg
>            Priority: Major
>         Attachments: HIVE-18598.1.patch, HIVE-18598.2.patch
> HIVE-16605 is enabling/enforcing NOT NULL constraint. But since Hive do not 
> manage the data for external tables and can not enforce constraints it 
> doesn't make sense to allow NOT NULL constraints to be enabled/enforced on 
> external table.
> User can still specify RELY to signal optimizer for constraint related 
> optimizations.

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