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https://issues.apache.org/jira/browse/HIVE-15518?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aihua Xu updated HIVE-15518:
----------------------------
Resolution: Fixed
Fix Version/s: 2.2.0
Status: Resolved (was: Patch Available)
Pushed to master. Thanks Yongzhi for reviewing.
> Refactoring rows and range related classes to put the window type on Window
> ---------------------------------------------------------------------------
>
> Key: HIVE-15518
> URL: https://issues.apache.org/jira/browse/HIVE-15518
> Project: Hive
> Issue Type: Sub-task
> Components: PTF-Windowing
> Reporter: Aihua Xu
> Assignee: Aihua Xu
> Priority: Minor
> Fix For: 2.2.0
>
> Attachments: HIVE-15518.1.patch, HIVE-15518.2.patch,
> HIVE-15518.3.patch, HIVE-15518.4.patch
>
>
> {noformat}
> /*
> * - A Window Frame that has only the /start/boundary, then it is
> interpreted as:
> BETWEEN <start boundary> AND CURRENT ROW
> * - A Window Specification with an Order Specification and no Window
> * Frame is interpreted as:
> ROW BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW
> * - A Window Specification with no Order and no Window Frame is
> interpreted as:
> ROW BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING
> */
> {noformat}
> The comments in WindowSpec above doesn't really match what it's claimed to
> do. Correct the comment to reduce the confusion.
> Also currently the window type is specified on each BoundarySpec but makes
> sense to put the type (rows or range) for each window.
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