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Posted to dev@lens.apache.org by "Rajitha R (JIRA)" <ji...@apache.org> on 2018/07/20 07:11:00 UTC

[jira] [Closed] (LENS-1404) [New] Virtual Fact

     [ https://issues.apache.org/jira/browse/LENS-1404?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rajitha R closed LENS-1404.
---------------------------

> [New] Virtual Fact 
> -------------------
>
>                 Key: LENS-1404
>                 URL: https://issues.apache.org/jira/browse/LENS-1404
>             Project: Apache Lens
>          Issue Type: New Feature
>          Components: cube
>            Reporter: Rajitha R
>            Assignee: Rajitha R
>            Priority: Major
>             Fix For: 2.7
>
>
> Need :
> 1. The current Fact definition does not allow a fact to participate in multiple cubes. For scenarios where the same fact needs to be queried in different cubes, this would be a limitation.
> 2. Fact definition also doesn’t support filters to be applied on the fact data.
> Considering the above two major requirements, a new entity called Virtual Fact has been proposed.
> Here is a brief overview about the features of Virtual fact : 
> 1. Virtual fact extends a Fact. 
> 2. It can belong to a different cube than its parent Fact Cube.
> 3. It can have additional filters which will be used in query rewriting.



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