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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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