[jira] [Updated] (HIVE-23665) Rewrite last_value to first_value to enable streaming results

["Ashutosh Chauhan (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-23665?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ashutosh Chauhan updated HIVE-23665:
------------------------------------
    Fix Version/s: 4.0.0
       Resolution: Fixed
           Status: Resolved  (was: Patch Available)

Pushed to master. Thanks, [~rameshkumar]

> Rewrite last_value to first_value to enable streaming results
> -------------------------------------------------------------
>
>                 Key: HIVE-23665
>                 URL: https://issues.apache.org/jira/browse/HIVE-23665
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Ramesh Kumar Thangarajan
>            Assignee: Ramesh Kumar Thangarajan
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 4.0.0
>
>         Attachments: HIVE-23665.1.patch, HIVE-23665.2.patch, HIVE-23665.3.patch
>
>          Time Spent: 1h 10m
>  Remaining Estimate: 0h
>
> Rewrite last_value to first_value to enable streaming results
> last_value cannot be streamed because the intermediate results need to be buffered to determine the window result till we get the last row in the window. But if we can rewrite to first_value we can stream the results, although the order of results will not be guaranteed (also not important)



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