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From "Daniel John Debrunner (JIRA)" <derby-...@db.apache.org>
Subject [jira] Commented: (DERBY-1489) Provide ALTER TABLE DROP COLUMN functionality
Date Sat, 23 Sep 2006 15:58:24 GMT
    [ http://issues.apache.org/jira/browse/DERBY-1489?page=comments#action_12437116 ] 
            
Daniel John Debrunner commented on DERBY-1489:
----------------------------------------------

Is it possible to commit the alter table drop column patch (in trunk) and work on the permissions
issues as a follow on?
Since it would be the trunk it could either be left as broken in SQL authorization mode, or
a quick check could be made and throw an unimplemented exception in sql auth mode. Then at
least the base code wouldbe available for others to test easily.

> Provide ALTER TABLE DROP COLUMN functionality
> ---------------------------------------------
>
>                 Key: DERBY-1489
>                 URL: http://issues.apache.org/jira/browse/DERBY-1489
>             Project: Derby
>          Issue Type: New Feature
>          Components: Documentation, SQL
>    Affects Versions: 10.0.2.0, 10.0.2.1, 10.1.1.0, 10.2.1.4, 10.1.2.1, 10.1.3.0, 10.1.3.1
>            Reporter: Bryan Pendleton
>         Assigned To: Bryan Pendleton
>         Attachments: drop_column_v5_grant_tests.diff, dropColumn_2.diff, dropColumn_v3_view_drop.diff,
dropColumn_v4_grant_tests.diff
>
>
> Provide a way to drop a column from an existing table. Possible syntax would be:
>   ALTER TABLE tablename DROP COLUMN columnname CASCADE / RESTRICT;
> Feature should properly handle columns which are used in constraints, views, triggers,
indexes, etc.

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