[jira] [Work started] (LENS-711) Allow chain ref columns to have multiple chain destinations

["Amareshwari Sriramadasu (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LENS-711?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Work on LENS-711 started by Amareshwari Sriramadasu.
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> Allow chain ref columns to have multiple chain destinations
> -----------------------------------------------------------
>
>                 Key: LENS-711
>                 URL: https://issues.apache.org/jira/browse/LENS-711
>             Project: Apache Lens
>          Issue Type: Improvement
>          Components: cube
>            Reporter: Amareshwari Sriramadasu
>            Assignee: Amareshwari Sriramadasu
>             Fix For: 2.3
>
>
> Right now, we allow ReferenceDimAttribute to be a chain ref column which specifies chain_name, and ref_col from the chain. This improvement proposed is to allow different chain_name, ref_col pair to be accepted.
> Usecase :
> We have multiple time dimension tables : say HourDim, DayDim and MonthDim.
> All of them have timestamp as field which can be mapped to a time field on cube. So, there will be three different chains associated with this reference attribute and optionally the referring column can be different as well.



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