hive-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Harish Butani (JIRA)" <>
Subject [jira] [Assigned] (HIVE-6999) Add streaming mode to PTFs
Date Thu, 01 May 2014 18:27:15 GMT


Harish Butani reassigned HIVE-6999:

    Assignee: Harish Butani

> Add streaming mode to PTFs
> --------------------------
>                 Key: HIVE-6999
>                 URL:
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Harish Butani
>            Assignee: Harish Butani
> 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

View raw message