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From "Dag H. Wanvik (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DERBY-6036) If you wrap a SELECT * view around a table, all of the columns are read from the base row even when you SELECT only a subset of the view columns.
Date Wed, 19 Jun 2013 07:57:23 GMT

     [ https://issues.apache.org/jira/browse/DERBY-6036?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Dag H. Wanvik updated DERBY-6036:
---------------------------------

    Labels: derby_triage10_11  (was: )

Triaged for 10.11.

                
> If you wrap a SELECT * view around a table, all of the columns are read from the base
row even when you SELECT only a subset of the view columns.
> -------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-6036
>                 URL: https://issues.apache.org/jira/browse/DERBY-6036
>             Project: Derby
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 10.10.1.1
>            Reporter: Rick Hillegas
>              Labels: derby_triage10_11
>         Attachments: derby-6036-01-aa-testForRestrictionPushing.diff, derby-6036.sql,
derbyAST.xml
>
>
> This also affects SELECTs from views wrapping RestrictedVTIs. Restrictions are pushed
into a restricted VTI if you wrap it in a view. However, projections are not. I will attach
a script showing this problem.

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