Shaofeng SHI resolved KYLIN-2575.
    Resolution: Fixed

> Experimental feature: Computed Column
> -------------------------------------
>                 Key: KYLIN-2575
>                 URL: https://issues.apache.org/jira/browse/KYLIN-2575
>             Project: Kylin
>          Issue Type: New Feature
>            Reporter: hongbin ma
>            Assignee: hongbin ma
>             Fix For: v2.1.0
> Computed column is a virtual column that is calculated from an expression of 
> existing columns. For example, TAX is computed from PRICE * TAX_RATE; TX_YEAR 
> is from EXTRACT(year from TX_DATE).
> Currently user have to create a view to enrich these computed columns, then 
> feed the view to cube. This has two inconvenience:
> Create a view is not easy.
> The query has to be rewritten to use view instead of the original table.
> Let Kylin directly support computed column will be a big step forward.

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