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From "Harish Butani (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-3984) Maintain a clear separation between Windowing & PTF at the specification level.
Date Mon, 18 Feb 2013 21:33:13 GMT

    [ https://issues.apache.org/jira/browse/HIVE-3984?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13580841#comment-13580841
] 

Harish Butani commented on HIVE-3984:
-------------------------------------

Patch is attached.
- Spec and Def classes are redesigned.
- Phase1 and genPlan redone. Windowing & PTF translation are clearly separated.
- there is no more a dependency on antlr during runtime

Couple of issues remaining, will create Jiras for these:
- Need to do Column pruning for PTF Op for Windowing. (original test6 is failing; will add
it back once this is done)
- runtime has dependency on FuncRegistry; dependency has been removed for PTFs, there is still
a dependency for UDAFs.
                
> Maintain a clear separation between Windowing & PTF at the specification level. 
> --------------------------------------------------------------------------------
>
>                 Key: HIVE-3984
>                 URL: https://issues.apache.org/jira/browse/HIVE-3984
>             Project: Hive
>          Issue Type: Bug
>          Components: PTF-Windowing
>            Reporter: Harish Butani
>            Assignee: Harish Butani
>         Attachments: HIVE-3984.1.patch.txt
>
>
> This has multiple pieces:
> - redefine the PTF Spec classes, as described in the Data Structs doc in Hive-896
> - refactor PTFDesc classes based on this design
> - refactor translation: both Phase 1 & GenPlan phases

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