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Posted to issues@hive.apache.org by "Jesus Camacho Rodriguez (Jira)" <ji...@apache.org> on 2020/04/23 04:41:00 UTC

[jira] [Work started] (HIVE-23275) Represent UNBOUNDED in window functions in CBO correctly

     [ https://issues.apache.org/jira/browse/HIVE-23275?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Work on HIVE-23275 started by Jesus Camacho Rodriguez.
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> Represent UNBOUNDED in window functions in CBO correctly
> --------------------------------------------------------
>
>                 Key: HIVE-23275
>                 URL: https://issues.apache.org/jira/browse/HIVE-23275
>             Project: Hive
>          Issue Type: Improvement
>          Components: CBO
>            Reporter: Jesus Camacho Rodriguez
>            Assignee: Jesus Camacho Rodriguez
>            Priority: Major
>         Attachments: HIVE-23275.patch
>
>
> Currently we use a bounded representation with bound set to Integer.MAX_VALUE, which works correctly since that is the Hive implementation. However, Calcite has a specific boundary class {{RexWindowBoundUnbounded}} that we should be using instead.



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