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https://issues.apache.org/jira/browse/KYLIN-576?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shaofeng SHI closed KYLIN-576.
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> Refactor expansion rate expression
> ----------------------------------
>
>                 Key: KYLIN-576
>                 URL: https://issues.apache.org/jira/browse/KYLIN-576
>             Project: Kylin
>          Issue Type: New Feature
>          Components: General, Metadata
>            Reporter: Luke Han
>            Assignee: Shaofeng SHI
>            Priority: Major
>             Fix For: v0.7.1
>
>
> Currently, Expansion Rate calculation just use Source Hive Table Size (Fact 
> Table) and Cube Size:
> Expansion Rate = sum(cube segment size)/hive_table_size
> New expression:
> Input Size: Flat table (intermedia hive table after join) size
> Input Records: Flat table (intermedia hive table after join) records
> Expansion Rate = sum(cube segment size)/sum(input_size)



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