[jira] [Updated] (LENS-974) Add cube-segmentation for base cube

["Rajat Khandelwal (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LENS-974?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rajat Khandelwal updated LENS-974:
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    Attachment: e1f17d45.png

Attaching class UML diagram for query writer objects

> Add cube-segmentation for base cube
> -----------------------------------
>
>                 Key: LENS-974
>                 URL: https://issues.apache.org/jira/browse/LENS-974
>             Project: Apache Lens
>          Issue Type: New Feature
>          Components: cube
>            Reporter: Sushil Mohanty
>         Attachments: e1f17d45.png
>
>
> With cube segmentation a cube can have multiple cubes and all these child cubes together will make the cube complete. 
> CubeSegmentation and  CubeFactTable will sit together, which means it can belong to only one base cube. A base cube can have one or more cube segmentations. Fields of segmentation will be intersection of all columns of its cubes. Segmentation will have weight to compare with its buddies (facts or other segmentations). Also it can have start and end time defined or it can derive from its underline facts. 
> eg: 
> base_cube
>   |_fact1
>   |_fact2
>   |_cube_segment1
>      |_cube1
>         |_fact_11
>         |_fact_12
>         ... 
>       ...
>   |_cube_segment2
>      |_cube2
>         |_fact_21
>         |_fact_22
>         ... 
>       ...



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