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https://issues.apache.org/jira/browse/KYLIN-1855?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15367108#comment-15367108
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Zhong Yanghong commented on KYLIN-1855:
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Yes, if the SQL includes those lookup tables which not used in cube, "no
realization found" error will occur.
The reason the cube is based on that model may be that users still want to
extract data based on the joins. Thus, it's better to relax the condition for
checking joins.
> 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
>
> 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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