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From "Kim Haase (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DERBY-3888) ALTER TABLE ... ADD COLUMN cannot add identity columns
Date Mon, 22 Sep 2014 13:45:34 GMT

    [ https://issues.apache.org/jira/browse/DERBY-3888?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14143208#comment-14143208
] 

Kim Haase commented on DERBY-3888:
----------------------------------

Looks good, Knut. Good thing {{columnDefinition}} already had its own separate topic.

+1

> ALTER TABLE ... ADD COLUMN cannot add identity columns
> ------------------------------------------------------
>
>                 Key: DERBY-3888
>                 URL: https://issues.apache.org/jira/browse/DERBY-3888
>             Project: Derby
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 10.4.2.0
>            Reporter: Knut Anders Hatlen
>            Assignee: Knut Anders Hatlen
>            Priority: Minor
>              Labels: derby_triage10_10
>         Attachments: d3888-1a.diff, d3888-2a-refman.diff, reenable-v2.diff, reenable-v3.diff,
reenable.diff, rrefsqlj81859.html
>
>
> ALTER TABLE .. ADD COLUMN cannot be used to add an identity column. There is code to
handle identity columns, but it is disabled in the parser. See this thread on derby-user:
> http://mail-archives.apache.org/mod_mbox/db-derby-user/200708.mbox/%3C46C5DAA9.8080507@sbcglobal.net%3E
> The code was disabled for DB2 compatibility. Since DB2 compatibility is not a goal for
Derby, we should see if we could re-enable it.



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