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https://issues.apache.org/jira/browse/PHOENIX-2058?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Thomas D'Silva updated PHOENIX-2058:
------------------------------------
    Attachment: PHOENIX-2058.wip.2.patch

[~jamestaylor]

I made some more progress and attached a WIP patch.

If I have a base table with columns (B1,B2,B3) and view with columns 
(B1,B2,B3,V1,V2). Should we be able to add V2 to the base table?

The current AlterTableIT.assertTableDefinition() method validates that the 
order of the columns in the base table matches that of the view , but it fails 
in the above case.

> Check for existence and compatibility of columns being added in view
> --------------------------------------------------------------------
>
>                 Key: PHOENIX-2058
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-2058
>             Project: Phoenix
>          Issue Type: Bug
>            Reporter: James Taylor
>            Assignee: Thomas D'Silva
>         Attachments: PHOENIX-2058-WIP.patch, PHOENIX-2058.wip.2.patch
>
>
> One check I realized we're not doing, but need to do, is ensuring that the 
> column being added by the base table doesn't already exist in the view. If 
> the column does already exist, ideally we can allow the addition to the base 
> table if the type matches and the scale is null or >= existing scale and the 
> maxLength is null or >= existing maxLength. Also, if a column is a PK column 
> and it already exists in the view, the position in the PK must match. 
> The fact that we've materialized a PTable for the view should make the 
> addition of this check easier.



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