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https://issues.apache.org/jira/browse/KYLIN-1855?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15391710#comment-15391710
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Zhong Yanghong commented on KYLIN-1855:
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Sorry for that I forgot to do the setting for the latest intellij IDEA
according to http://kylin.apache.org/development/dev_env.html
> Should exclude those joins in whose related lookup tables no dimensions are
> used in cube
> ----------------------------------------------------------------------------------------
>
> Key: KYLIN-1855
> URL: https://issues.apache.org/jira/browse/KYLIN-1855
> Project: Kylin
> Issue Type: Improvement
> Reporter: Zhong Yanghong
> Assignee: Zhong Yanghong
> Fix For: v1.5.4
>
> Attachments: exclude_unused_joins.patch
>
>
> A cube is based on a model in which a star schema is defined. In some cases,
> the cube utilizes only a few lookup tables rather than all. In this case,
> when creating the sql for the flat table, those lookup tables should not be
> included. Otherwise, it will confuse users when query. If users do query
> according to the definition of the flat table, error of no realization will
> occur due to lack of the related join.
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