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https://issues.apache.org/jira/browse/KYLIN-3646?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16662092#comment-16662092
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ASF GitHub Bot commented on KYLIN-3646:
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Emiya0306 opened a new pull request #310: KYLIN-3646 Add instruction about
rowkey sequence in "Advanced setting" page
URL: https://github.com/apache/kylin/pull/310
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> Add instruction about rowkey sequence in "Advanced setting" page
> ----------------------------------------------------------------
>
> Key: KYLIN-3646
> URL: https://issues.apache.org/jira/browse/KYLIN-3646
> Project: Kylin
> Issue Type: Improvement
> Components: Web
> Reporter: Shaofeng SHI
> Assignee: Roger
> Priority: Major
> Fix For: v2.6.0
>
>
> The position of dimension in rowkey is important for performance (both build
> and query); But this message is not clear for a normal user. We'd better add
> instruction on the web GUI, so that user knows to adjust it by some rule.
>
> In the rowkey part, adding:
> "Important: Dimension's positioin on HBase rowkey is critical for
> performance. You can drag and drop to adjust the sequence. In short, put
> filtering dimension before non-filtering dimension, and put high cardinality
> dimension before low cardinality dimension."
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