[jira] [Commented] (HAWQ-452) Remove workfile views from hawq_toolkit

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HAWQ-452?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15190068#comment-15190068 ] 

ASF GitHub Bot commented on HAWQ-452:
-------------------------------------

Github user hsyuan commented on the pull request:

    https://github.com/apache/incubator-hawq/pull/385#issuecomment-195075969
  
    LGTM.


> Remove workfile views from hawq_toolkit
> ---------------------------------------
>
>                 Key: HAWQ-452
>                 URL: https://issues.apache.org/jira/browse/HAWQ-452
>             Project: Apache HAWQ
>          Issue Type: Task
>          Components: Query Execution
>            Reporter: George Caragea
>            Assignee: George Caragea
>
> In the hawq_toolkit schema we have a few views with live information about disk space used for workfiles (or spillfiles). 
> Generating this views means running a UDF on every segment. This doesn't apply to the HAWQ 2 architecture: 
> *  The notion of "every segment" is not well defined in HAWQ 2, since we have virtual segments that are created dynamically based on resource requirements and availablitiy
> * There is no mechanism to execute a UDF on all the existing virtual or physical segments 
> We should remove the views from hawq_toolkit.



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