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Posted to issues@hawq.apache.org by "Hubert Zhang (JIRA)" <ji...@apache.org> on 2015/10/23 03:17:27 UTC

[jira] [Closed] (HAWQ-68) Wrong answer when converting hash to random partition table

     [ https://issues.apache.org/jira/browse/HAWQ-68?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hubert Zhang closed HAWQ-68.
----------------------------
    Resolution: Fixed

fixed

> Wrong answer when converting hash to random partition table
> -----------------------------------------------------------
>
>                 Key: HAWQ-68
>                 URL: https://issues.apache.org/jira/browse/HAWQ-68
>             Project: Apache HAWQ
>          Issue Type: Bug
>          Components: Core
>            Reporter: Hubert Zhang
>            Assignee: Hubert Zhang
>
> for hash partition table, if datalocality is below a threshold, it will be treated as random. For now, some partition's datalocality are high, some are not, which leads to some partitions are converted to random, some are not. But optimizer must treat the whole partition table with the same distribution type. So we determine the distribution type of partition table by its first partition. 



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