[
https://issues.apache.org/jira/browse/HIVE-15520?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Aihua Xu updated HIVE-15520:
----------------------------
Attachment: HIVE-15520.2.patch
patch-2: fix the issues found from the unit test failures.
> Improve the sum performance for Range based window
> --------------------------------------------------
>
> 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
> Attachments: HIVE-15520.1.patch, HIVE-15520.2.patch
>
>
> 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.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
