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Posted to issues@hawq.apache.org by "Lei Chang (JIRA)" <ji...@apache.org> on 2015/11/21 04:12:11 UTC

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

     [ https://issues.apache.org/jira/browse/HAWQ-80?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Lei Chang updated HAWQ-80:
--------------------------
    Fix Version/s: 2.0.0-beta-incubating

> 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
>             Fix For: 2.0.0-beta-incubating
>
>
> 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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