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Posted to issues@kylin.apache.org by "Shaofeng SHI (JIRA)" <ji...@apache.org> on 2018/06/01 07:40:00 UTC

[jira] [Updated] (KYLIN-3362) Support dynamic dimension push down

     [ https://issues.apache.org/jira/browse/KYLIN-3362?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Shaofeng SHI updated KYLIN-3362:
--------------------------------
    Fix Version/s: v2.4.0
      Component/s: Query Engine

> Support dynamic dimension push down
> -----------------------------------
>
>                 Key: KYLIN-3362
>                 URL: https://issues.apache.org/jira/browse/KYLIN-3362
>             Project: Kylin
>          Issue Type: Sub-task
>          Components: Query Engine
>            Reporter: Zhong Yanghong
>            Assignee: Zhong Yanghong
>            Priority: Major
>             Fix For: v2.4.0
>
>
> Here, dynamic dimension is mainly for {{case when}}. By push down, the cardinality will be reduced and the returned result row number can be reduced. For simplicity, if columns exist in {{then}}, currently we don't do the push down.
> The same as [KYLIN-3359], the related filters in case when have to be able to be pushed down. 



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