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https://issues.apache.org/jira/browse/HAWQ-76?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14973485#comment-14973485
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ASF GitHub Bot commented on HAWQ-76:
------------------------------------

Github user jiny2 commented on the pull request:

    https://github.com/apache/incubator-hawq/pull/36#issuecomment-150986612
  
    +1 The code change is good to me.


> add guc to determine whether to convert hash table to random with enforcement
> -----------------------------------------------------------------------------
>
>                 Key: HAWQ-76
>                 URL: https://issues.apache.org/jira/browse/HAWQ-76
>             Project: Apache HAWQ
>          Issue Type: New Feature
>          Components: Core
>            Reporter: Hubert Zhang
>            Assignee: Hubert Zhang
>
> add guc enforce_hash_to_random to determine whether to convert hash table  to 
> random table. 
> enforce_hash_to_random=0: converting when datalocality is low  
> enforce_hash_to_random=1: enforce hash 
> enforce_hash_to_random=2: enforce random



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