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From "Bryan Pendleton (JIRA)" <derby-...@db.apache.org>
Subject [jira] Commented: (DERBY-1489) Provide ALTER TABLE DROP COLUMN functionality
Date Tue, 03 Oct 2006 21:39:21 GMT
    [ http://issues.apache.org/jira/browse/DERBY-1489?page=comments#action_12439667 ] 
            
Bryan Pendleton commented on DERBY-1489:
----------------------------------------

Hi Mamta, thanks very much for the feedback. I didn't mean to rush you, just trying to find
out who was reviewing.

I definitely agree that we need good documentation for this feature, and I will file a new
JIRA issue accordingly.

I'm concerned that the current ALTER TABLE doc is already a bit unwieldy, and so I'm interested
to get some suggestions about how we can rework that doc to make it more comprehensible and
usable.

I think we can deal with all those topics as part of the documentation JIRA.

> 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, 10.2.1.6, 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, drop_column_v6_grant_not_implemented.diff,
drop_column_v7_suggestions_from_mamta.diff, drop_column_v8_restored_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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