[jira] [Comment Edited] (KYLIN-3988) Weighted Average does not work on cube

["Shaofeng SHI (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/KYLIN-3988?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16827626#comment-16827626 ] 

Shaofeng SHI edited comment on KYLIN-3988 at 4/27/19 2:40 PM:
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Hello Anoop, sum(x*y) couldn't be translated to sum(X) and sum(Y) with any operator, so it is not supported by Kylin, unless you define a column "z" = "x*y" in the source table, and then define "sum(z)" as a measure. If you're not willing to add this column in your hive table, you can define it in a hive view, and then use the view as the cube fact table.


was (Author: shaofengshi):
Hello Anoop, sum(x*y) couldn't be translated to sum(x) and sum(y) with any operator, so it is not supported by Kylin, unless you define a column "z" = "x*y" in the source table, and then define "sum(z)" as a measure. If you're not willing to add this column in your hive table, you can define it in a hive view, and then use the view as the cube fact table.

> Weighted Average does not work on cube
> --------------------------------------
>
>                 Key: KYLIN-3988
>                 URL: https://issues.apache.org/jira/browse/KYLIN-3988
>             Project: Kylin
>          Issue Type: Bug
>          Components: Driver - ODBC
>    Affects Versions: v2.6.1
>            Reporter: Anoop Krishnaswamy
>            Priority: Critical
>
> When we try to get aggregate over multiplication of 2 metrics it throws an error:
> That both of the two sides of the BinaryTupleExpression own columns is not supported for * while executing SQL: "select sum(riskscoreinitial*cyc_xxx_balanceAdb), cyc_xxx_cyclesdelinquent from fct_profit_table_monthly group by cyc_xxx_cyclesdelinquent LIMIT 50000"
>  
> My query looks something like this :
>  
> select sum(<Metric1>*<Metric2>), <dim1> from <table> group by <dim1>
> Any guidance will help



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