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From "Rick Hillegas (JIRA)" <j...@apache.org>
Subject [jira] Closed: (DERBY-3922) Enable the adding of generated columns via ALTER TABLE
Date Tue, 04 Nov 2008 21:12:44 GMT

     [ https://issues.apache.org/jira/browse/DERBY-3922?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Rick Hillegas closed DERBY-3922.
--------------------------------

    Resolution: Fixed
    Derby Info:   (was: [Patch Available])

> Enable the adding of generated columns via ALTER TABLE
> ------------------------------------------------------
>
>                 Key: DERBY-3922
>                 URL: https://issues.apache.org/jira/browse/DERBY-3922
>             Project: Derby
>          Issue Type: Task
>          Components: SQL
>    Affects Versions: 10.5.0.0
>            Reporter: Rick Hillegas
>            Assignee: Rick Hillegas
>         Attachments: derby-3922-01-aa-repopulate.diff
>
>
> The initial grammar patch for generated columns did not include ALTER TABLE support.
This support cannot be added until we check in the UPDATE logic for generated columns. Adding
a generated column to an existing table is supposed to calculate the generated column's values
for all rows currently in the table.

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