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Posted to issues@hawq.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2015/11/05 18:44:27 UTC

[jira] [Commented] (HAWQ-80) Support dynamic relation distribution type in gpopt

    [ https://issues.apache.org/jira/browse/HAWQ-80?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14992086#comment-14992086 ] 

ASF GitHub Bot commented on HAWQ-80:
------------------------------------

Github user entong closed the pull request at:

    https://github.com/apache/incubator-hawq/pull/42


> Support dynamic relation distribution type in gpopt 
> ----------------------------------------------------
>
>                 Key: HAWQ-80
>                 URL: https://issues.apache.org/jira/browse/HAWQ-80
>             Project: Apache HAWQ
>          Issue Type: Improvement
>          Components: Optimizer
>            Reporter: Entong Shen
>            Assignee: Amr El-Helw
>
> If there are 3 hash distributed tables in a query, each has a different buckets number, say 8, 24 and 64, the resource negotiator will allocate max(8,24,64)=64 vSegs. In this case, the tables with buckets number 8 and 24 will need to be regarded as random distributed table during planning.



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