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Posted to issues@kylin.apache.org by "Ma Gang (JIRA)" <ji...@apache.org> on 2017/10/25 05:15:00 UTC

[jira] [Updated] (KYLIN-2965) RealizationChooser cost calculation logic different with CubeInstance

     [ https://issues.apache.org/jira/browse/KYLIN-2965?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ma Gang updated KYLIN-2965:
---------------------------
    Attachment: kylin-2965.patch

attach the minor fix patch

> RealizationChooser cost calculation logic different with CubeInstance
> ---------------------------------------------------------------------
>
>                 Key: KYLIN-2965
>                 URL: https://issues.apache.org/jira/browse/KYLIN-2965
>             Project: Kylin
>          Issue Type: Improvement
>          Components: Query Engine
>            Reporter: Ma Gang
>            Assignee: Ma Gang
>            Priority: Minor
>         Attachments: kylin-2965.patch
>
>
> In RealizationChooser.RealizationCost, it uses cube's all dimensions(including all derived columns) to calculate the cost, but in CubeInstance, it use row key column count. Think it is a bug, should not include the derived column number to calculate cost



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