hive-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Harish Butani (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-6999) Add streaming mode to PTFs
Date Thu, 15 May 2014 05:44:15 GMT

     [ https://issues.apache.org/jira/browse/HIVE-6999?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Harish Butani updated HIVE-6999:
--------------------------------

    Status: Patch Available  (was: Open)

> Add streaming mode to PTFs
> --------------------------
>
>                 Key: HIVE-6999
>                 URL: https://issues.apache.org/jira/browse/HIVE-6999
>             Project: Hive
>          Issue Type: Improvement
>    Affects Versions: 0.13.0, 0.12.0, 0.11.0
>            Reporter: Harish Butani
>            Assignee: Harish Butani
>         Attachments: HIVE-6999.1.patch, HIVE-6999.2.patch, HIVE-6999.3.patch
>
>
> There are a set of use cases where the Table Function can operate on a Partition row
by row or on a subset(window) of rows as it is being streamed to it.
> - Windowing has couple of use cases of this:processing of Rank functions, processing
of Window Aggregations.
> - But this is a generic concept: any analysis that operates on an Ordered partition maybe
able to operate in Streaming mode.
> This patch introduces streaming mode in PTFs and provides the mechanics to handle PTF
chains that contain both modes of PTFs.
> Subsequent patches will introduce Streaming mode for Windowing.



--
This message was sent by Atlassian JIRA
(v6.2#6252)

Mime
View raw message