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Posted to issues@hive.apache.org by "Aihua Xu (JIRA)" <ji...@apache.org> on 2016/12/28 19:26:58 UTC

[jira] [Updated] (HIVE-15520) Improve the Range based window to add streaming support

     [ https://issues.apache.org/jira/browse/HIVE-15520?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Aihua Xu updated HIVE-15520:
----------------------------
    Description: 
Currently streaming process is not supported for range based windowing. Thus sum( x ) over (partition by y order by z) is O(n^2) running time. 

Investigate the possibility of streaming support.

  was:
Currently streaming process is not supported for range based windowing. Thus sum(x) over (partition by y order by z) is O(n^2) running time. 

Investigate the possibility of streaming support.


> Improve the Range based window to add streaming support 
> --------------------------------------------------------
>
>                 Key: HIVE-15520
>                 URL: https://issues.apache.org/jira/browse/HIVE-15520
>             Project: Hive
>          Issue Type: Sub-task
>          Components: PTF-Windowing
>            Reporter: Aihua Xu
>            Assignee: Aihua Xu
>
> Currently streaming process is not supported for range based windowing. Thus sum( x ) over (partition by y order by z) is O(n^2) running time. 
> Investigate the possibility of streaming support.



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